Updated to depend less on string create for an answer

src/main/java/mattrixwv/ProjectEuler/Problems/Problem.java

@@ -29,7 +29,6 @@ public abstract class Problem{
 	//Variables
 	//Instance variables
 	protected final Stopwatch timer = new Stopwatch();	//To time how long it takes to run the algorithm
-	protected String result = null;	//Holds the results of the problem
 	private final String description;	//Holds the description of the problem
 	protected boolean solved;	//Shows whether the problem has already been solved
 
@@ -44,12 +43,7 @@ public abstract class Problem{
 		return description;
 	}
 	//Returns the result of solving the problem
-	public String getResult(){
+	public abstract String getResult();
-		if(!solved){
-			throw new Unsolved();
-		}
-		return result;
-	}
 	//Returns the time taken to run the problem as a string
 	public String getTime() throws InvalidResult{
 		if(!solved){
@@ -70,6 +64,5 @@ public abstract class Problem{
 	public void reset(){
 		timer.reset();
 		solved = false;
-		result = null;
 	}
 }

src/main/java/mattrixwv/ProjectEuler/Problems/Problem1.java

@@ -1,7 +1,7 @@
 //ProjectEulerJava/src/main/java/mattrixwv/ProjectEuler/Problems/Problem1.java
 //Matthew Ellison
 // Created: 03-01-19
-//Modified: 08-23-20
+//Modified: 08-27-20
 //What is the sum of all the multiples of 3 or 5 that are less than 1000
 //Unless otherwise listed all non-standard includes are my own creation and available from https://bibucket.org/Mattrixwv/JavaClasses
 /*
@@ -36,11 +36,12 @@ public class Problem1 extends Problem{
 	//Functions
 	//Constructor
 	public Problem1(){
-		super("What is the sum of all the multiples of 3 or 5 that are less than 1000");
+		super(String.format("What is the sum of all the multiples of 3 or 5 that are less than %d?", (TOP_NUM + 1)));
 		fullSum = 0;
 	}
 	//Operational functions
 	//Solve the problem
+	@Override
 	public void solve(){
 		//If the problem has already been solved do nothing and end the function
 		if(solved){
@@ -65,16 +66,22 @@ public class Problem1 extends Problem{
 
 		//Throw a flag to show the problem is solved
 		solved = true;
-
-		//Save the results
-		result = String.format("The sum of all numbers < %d is %d", (TOP_NUM + 1), fullSum);
 	}
 	//Reset the problem so it can be run again
+	@Override
 	public void reset(){
 		super.reset();
 		fullSum = 0;
 	}
 	//Gets
+	//Returns the result of solving the problem
+	@Override
+	public String getResult(){
+		if(!solved){
+			throw new Unsolved();
+		}
+		return String.format("The sum of all numbers < %d is %d", (TOP_NUM + 1), fullSum);
+	}
 	//Returns the requested sum
 	public int getSum(){
 		//If the problem hasn't been solved throw an exception

src/main/java/mattrixwv/ProjectEuler/Problems/Problem10.java

@@ -1,7 +1,7 @@
 //ProjectEulerJava/src/main/java/mattrixwv/ProjectEuler/Problems/Problem10.java
 //Matthew Ellison
 // Created: 03-03-19
-//Modified: 08-26-20
+//Modified: 08-27-20
 //Find the sum of all the primes below two million
 //Unless otherwise listed all non-standard includes are my own creation and available from https://bibucket.org/Mattrixwv/JavaClasses
 /*
@@ -37,11 +37,12 @@ public class Problem10 extends Problem{
 	//Functions
 	//Constructor
 	public Problem10(){
-		super("Find the sum of all the primes below two million");
+		super(String.format("Find the sum of all the primes below %d.", GOAL_NUMBER + 1));
 		sum = 0;
 	}
 	//Operational functions
 	//Solve the problem
+	@Override
 	public void solve(){
 		//If the problem has already been solved do nothing and end the function
 		if(solved){
@@ -52,23 +53,29 @@ public class Problem10 extends Problem{
 		timer.start();
 
 		//Get the sum of all prime numbers < GOAL_NUMBER
-		long sum = Algorithms.getLongSum(Algorithms.getPrimes(GOAL_NUMBER));	//Subtract 1 from the number so that it is < the number
+		sum = Algorithms.getLongSum(Algorithms.getPrimes(GOAL_NUMBER));	//Subtract 1 from the number so that it is < the number
 
 		//Stop the timer
 		timer.stop();
 
 		//Throw a flag to show the problem is solved
 		solved = true;
-
-		//Save the results
-		result = String.format("The sum of all the primes < %d is %d\n", GOAL_NUMBER + 1, sum);
 	}
 	//Reset the problem so it can be run again
+	@Override
 	public void reset(){
 		super.reset();
 		sum = 0;
 	}
 	//Gets
+	//Returns the result of solving the problem
+	@Override
+	public String getResult(){
+		if(!solved){
+			throw new Unsolved();
+		}
+		return String.format("The sum of all the primes < %d is %d", GOAL_NUMBER + 1, sum);
+	}
 	//Returns the sum that was requested
 	public long getSum(){
 		//If the problem hasn't been solved throw an exception

src/main/java/mattrixwv/ProjectEuler/Problems/Problem11.java

@@ -1,7 +1,7 @@
 //ProjectEulerJava/src/main/java/mattrixwv/ProjectEuler/Problems/Problem11.java
 //Matthew Ellison
 // Created: 03-03-19
-//Modified: 08-26-20
+//Modified: 08-27-20
 //What is the greatest product of four adjacent numbers in the same direction (up, down, left, right, or diagonally) in the 20×20 grid?
 /*
 08 02 22 97 38 15 00 40 00 75 04 05 07 78 52 12 50 77 91 08
@@ -86,6 +86,7 @@ public class Problem11 extends Problem{
 	}
 	//Operational functions
 	//Solve the problem
+	@Override
 	public void solve(){
 		//If the problem has already been solved do nothing and end the function
 		if(solved){
@@ -196,16 +197,22 @@ public class Problem11 extends Problem{
 
 		//Throw a flag to show the problem is solved
 		solved = true;
-
-		//Save the resutls
-		result = String.format("The greatest product of 4 numbers in a line is %d\nThe numbers are %s", Algorithms.getProd(greatestProduct), greatestProduct.toString());
 	}
 	//Reset the problem so it can be run again
+	@Override
 	public void reset(){
 		super.reset();
 		greatestProduct.clear();
 	}
 	//Gets
+	//Returns the result of solving the problem
+	@Override
+	public String getResult(){
+		if(!solved){
+			throw new Unsolved();
+		}
+		return String.format("The greatest product of 4 numbers in a line is %d\nThe numbers are %s", Algorithms.getProd(greatestProduct), greatestProduct.toString());
+	}
 	//Returns the numbers that were being searched
 	ArrayList<Integer> getNumbers(){
 		//If the problem hasn't been solved throw an exception

src/main/java/mattrixwv/ProjectEuler/Problems/Problem12.java

@@ -1,7 +1,7 @@
 //ProjectEulerJava/src/main/java/mattrixwv/ProjectEuler/Problems/Problem12.java
 //Matthew Ellison
 // Created: 03-04-19
-//Modified: 08-26-20
+//Modified: 08-27-20
 //What is the value of the first triangle number to have over five hundred divisors?
 //Unless otherwise listed all non-standard includes are my own creation and available from https://bibucket.org/Mattrixwv/JavaClasses
 /*
@@ -41,7 +41,7 @@ public class Problem12 extends Problem{
 	//Functions
 	//Constructor
 	public Problem12(){
-		super("What is the value of the first triangle number to have over five hundred divisors?");
+		super(String.format("What is the value of the first triangle number to have over %d divisors?", GOAL_DIVISORS));
 		sum = 1;
 		counter = 2;
 		divisors = new ArrayList<Long>();
@@ -79,9 +79,6 @@ public class Problem12 extends Problem{
 
 		//Throw a flag to show the problem is solved
 		solved = true;
-
-		//Save the results
-		result = String.format("The triangular number %d is the sum of all numbers >= %d and has %d divisors\n", sum, counter - 1, divisors.size());
 	}
 	//Reset the problem so it can be run again
 	public void reset(){
@@ -91,6 +88,14 @@ public class Problem12 extends Problem{
 		divisors.clear();
 	}
 	//Gets
+	//Returns the result of solving the problem
+	@Override
+	public String getResult(){
+		if(!solved){
+			throw new Unsolved();
+		}
+		return String.format("The triangular number %d is the sum of all numbers >= %d and has %d divisors", sum, counter - 1, divisors.size());
+	}
 	//Returns the triangular number
 	public long getTriangularNumber(){
 		//If the problem hasn't been solved throw an exception

src/main/java/mattrixwv/ProjectEuler/Problems/Problem13.java

@@ -1,7 +1,7 @@
 //ProjectEulerJava/src/main/java/mattrixwv/ProjectEuler/Problems/Problem13.java
 //Matthew Ellison
 // Created: 03-04-19
-//Modified: 08-26-20
+//Modified: 08-27-20
 //Work out the first ten digits of the sum of the following one-hundred 50-digit numbers
 /*
 37107287533902102798797998220837590246510135740250
@@ -256,6 +256,7 @@ public class Problem13 extends Problem{
 		nums.add(new BigInteger("53503534226472524250874054075591789781264330331690"));
 	}
 	//Solve the problem
+	@Override
 	public void solve(){
 		//If the problem has already been solved do nothing and end the function
 		if(solved){
@@ -276,11 +277,9 @@ public class Problem13 extends Problem{
 
 		//Throw a flag to show the problem is solved
 		solved = true;
-
-		//Save the results
-		result = String.format("The sum of all %d numbers is %d\nThe first 10 digits of the sum of the numbers is %s\n", nums.size(), sum, (sum.toString()).substring(0, 10));
 	}
 	//Reset the problem so it can be run again
+	@Override
 	public void reset(){
 		super.reset();
 		sum = BigInteger.ZERO;
@@ -288,6 +287,14 @@ public class Problem13 extends Problem{
 		reserveVectors();
 	}
 	//Gets
+	//Returns the result of solving the problem
+	@Override
+	public String getResult(){
+		if(!solved){
+			throw new Unsolved();
+		}
+		return String.format("The sum of all %d numbers is %d\nThe first 10 digits of the sum of the numbers is %s", nums.size(), sum, (sum.toString()).substring(0, 10));
+	}
 	//Returns the list 50-digit numbers
 	public ArrayList<BigInteger> getNumbers(){
 		//If the problem hasn't been solved throw an exception

src/main/java/mattrixwv/ProjectEuler/Problems/Problem14.java

@@ -1,7 +1,7 @@
 //ProjectEulerJava/src/main/java/mattrixwv/ProjectEuler/Problems/Problem14.java
 //Matthew Ellison
 // Created: 03-04-19
-//Modified: 08-26-20
+//Modified: 08-27-20
 /*
 The following iterative sequence is defined for the set of positive integers:
 n → n/2 (n is even)
@@ -42,12 +42,13 @@ public class Problem14 extends Problem{
 	//Functions
 	//Constructor
 	public Problem14(){
-		super("Which starting number, under one million, produces the longest chain using the itterative sequence?");
+		super(String.format("Which starting number, under %d, produces the longest chain using the itterative sequence?", MAX_NUM));
 		maxLength = 0;
 		maxNum = 0;
 	}
 	//Operational functions
 	//Solve the problem
+	@Override
 	public void solve(){
 		//If the problem has already been solved do nothing and end the function
 		if(solved){
@@ -72,9 +73,6 @@ public class Problem14 extends Problem{
 
 		//Throw a flag to show the problem is solved
 		solved = true;
-
-		//Save the results
-		result = String.format("The number %d produced a chain of %d steps\n", maxNum, maxLength);
 	}
 	//This function follows the rules of the sequence and returns its length
 	private long checkSeries(long num){
@@ -95,12 +93,21 @@ public class Problem14 extends Problem{
 		return length;
 	}
 	//Reset the problem so it can be run again
+	@Override
 	public void reset(){
 		super.reset();
 		maxLength = 0;
 		maxNum = 0;
 	}
 	//Gets
+	//Returns the result of solving the problem
+	@Override
+	public String getResult(){
+		if(!solved){
+			throw new Unsolved();
+		}
+		return String.format("The number %d produced a chain of %d steps\n", maxNum, maxLength);
+	}
 	//Returns the length of the requested chain
 	public long getLength(){
 		//If the problem hasn't been solved throw an exception

src/main/java/mattrixwv/ProjectEuler/Problems/Problem15.java

@@ -1,7 +1,7 @@
 //ProjectEulerJava/src/main/java/mattrixwv/ProjectEuler/Problems/Problem15.java
 //Matthew Ellison
 // Created: 03-04-19
-//Modified: 08-26-20
+//Modified: 08-27-20
 //How many routes from the top left corner to the bottom right corner are there through a 20×20 grid if you can only move right and down?
 //Unless otherwise listed all non-standard includes are my own creation and available from https://bibucket.org/Mattrixwv/JavaClasses
 /*
@@ -37,11 +37,12 @@ public class Problem15 extends Problem{
 	//Functions
 	//Constructor
 	public Problem15(){
-		super("How many routes from the top left corner to the bottom right corner are there through a 20x20 grid if you can only move right and down?");
+		super(String.format("How many routes from the top left corner to the bottom right corner are there through a %dx%d grid if you can only move right and down?", WIDTH, LENGTH));
 		numOfRoutes = 0;
 	}
 	//Operational functions
 	//Solve the problems
+	@Override
 	public void solve(){
 		//If the problem has already been solved do nothing and end the function
 		if(solved){
@@ -60,9 +61,6 @@ public class Problem15 extends Problem{
 
 		//Throw a flag to show the problem is solved
 		solved = true;
-
-		//Save the results
-		result = String.format("The number of routes is " + numOfRoutes);
 	}
 	//This function acts as a handler for moving the position on the grid and counting the distance
 	//It moves right first, then down
@@ -84,11 +82,20 @@ public class Problem15 extends Problem{
 		}
 	}
 	//Reset the problem so it can be run again
+	@Override
 	public void reset(){
 		super.reset();
 		numOfRoutes = 0;
 	}
 	//Gets
+	//Returns the result of solving the problem
+	@Override
+	public String getResult(){
+		if(!solved){
+			throw new Unsolved();
+		}
+		return String.format("The number of routes is %d", numOfRoutes);
+	}
 	//Returns the number of routes found
 	public long getNumberOfRoutes(){
 		//If the problem hasn't been solved throw an exception

src/main/java/mattrixwv/ProjectEuler/Problems/Problem16.java

@@ -1,7 +1,7 @@
 //ProjectEulerJava/src/main/java/mattrixwv/ProjectEuler/Problems/Problem16.java
 //Matthew Ellison
 // Created: 03-04-19
-//Modified: 08-26-20
+//Modified: 08-27-20
 //What is the sum of the digits of the number 2^1000?
 //Unless otherwise listed all non-standard includes are my own creation and available from https://bibucket.org/Mattrixwv/JavaClasses
 /*
@@ -40,10 +40,11 @@ public class Problem16 extends Problem{
 	//Functions
 	//Constructor
 	public Problem16(){
-		super("What is the sum of the digits of the number 2^1000?");
+		super(String.format("What is the sum of the digits of the number %d^%d?", NUM_TO_POWER, POWER));
 	}
 	//Operational functions
 	//Solve the problem
+	@Override
 	public void solve(){
 		//If the problem has already been solved do nothing and end the function
 		if(solved){
@@ -69,17 +70,23 @@ public class Problem16 extends Problem{
 
 		//Throw a flag to show the problem is solved
 		solved = true;
-
-		//Save the results
-		result = String.format("%d^%d = %s\nThe sum of the elements is %d\n", NUM_TO_POWER, POWER, num.toString(), sumOfElements);
 	}
 	//Reset the problem so it can be run again
+	@Override
 	public void reset(){
 		super.reset();
 		num = BigInteger.ZERO;
 		sumOfElements = 0;
 	}
 	//Gets
+	//Returns the result of solving the problem
+	@Override
+	public String getResult(){
+		if(!solved){
+			throw new Unsolved();
+		}
+		return String.format("%d^%d = %s\nThe sum of the elements is %d\n", NUM_TO_POWER, POWER, num.toString(), sumOfElements);
+	}
 	//Returns the number that was calculated
 	public BigInteger getNumber(){
 		//If the problem hasn't been solved throw an exception

src/main/java/mattrixwv/ProjectEuler/Problems/Problem17.java

@@ -1,7 +1,7 @@
 //ProjectEulerJava/src/main/java/mattrixwv/ProjectEuler/Problems/Problem17.java
 //Matthew Ellison
 // Created: 03-04-19
-//Modified: 08-26-20
+//Modified: 08-27-20
 //If all the numbers from 1 to 1000 (one thousand) inclusive were written out in words, how many letters would be used?
 //Unless otherwise listed all non-standard includes are my own creation and available from https://bibucket.org/Mattrixwv/JavaClasses
 /*
@@ -37,11 +37,12 @@ public class Problem17 extends Problem{
 	//Functions
 	//Constructor
 	public Problem17(){
-		super("If all the numbers from 1 to 1000 (one thousand) inclusive were written out in words, how many letters would be used?");
+		super(String.format("If all the numbers from %d to %d inclusive were written out in words, how many letters would be used?", START_NUM, STOP_NUM));
 		letterCount = 0;
 	}
 	//Operational functions
 	//Solve the problem
+	@Override
 	public void solve(){
 		//If the problem has already been solved do nothing and end the function
 		if(solved){
@@ -64,11 +65,9 @@ public class Problem17 extends Problem{
 
 		//Throw a flag to show the problem is solved
 		solved = true;
-
-		//Save the results
-		result = String.format("The sum of all the letters in all the numbers %d-%d is %d\n", START_NUM, STOP_NUM, letterCount);
 	}
 	//Reset the problem so it can be run again
+	@Override
 	public void reset(){
 		super.reset();
 		letterCount = 0;
@@ -179,6 +178,14 @@ public class Problem17 extends Problem{
 		return sumOfLetters;
 	}
 	//Gets
+	//Returns the result of solving the problem
+	@Override
+	public String getResult(){
+		if(!solved){
+			throw new Unsolved();
+		}
+		return String.format("The sum of all the letters in all the numbers %d-%d is %d\n", START_NUM, STOP_NUM, letterCount);
+	}
 	//Returns the number of letters asked for
 	public long getLetterCount(){
 		//If the problem hasn't been solved throw an exception

src/main/java/mattrixwv/ProjectEuler/Problems/Problem18.java

@@ -1,7 +1,7 @@
 //ProjectEulerJava/src/main/java/mattrixwv/ProjectEuler/Problems/Problem18.java
 //Matthew Ellison
 // Created: 03-11-19
-//Modified: 08-26-20
+//Modified: 08-27-20
 //Find the maximum total from top to bottom
 /*
 75
@@ -170,20 +170,18 @@ public class Problem18 extends Problem{
 			}
 		}
 
-		//Stop the timer
-		timer.stop();
-
 		//Invert the list again so it is correct
 		invert(list);
 
 		//Save the results
 		//Get the correct total which will be the inversion of the current one
-		int actualTotal = ((100 * list.size()) - foundPoints.get(foundPoints.size() - 1).total);
+		actualTotal = ((100 * list.size()) - foundPoints.get(foundPoints.size() - 1).total);
+
+		//Stop the timer
+		timer.stop();
 
 		//Throw a flag to show the problem is solved
 		solved = true;
-
-		result = String.format("The value of the longest path is " + actualTotal);
 	}
 	//Reset the problem so it can be run again
 	public void reset(){
@@ -193,6 +191,14 @@ public class Problem18 extends Problem{
 		actualTotal = 0;
 	}
 	//Gets
+	//Returns the result of solving the problem
+	@Override
+	public String getResult(){
+		if(!solved){
+			throw new Unsolved();
+		}
+		return String.format("The value of the longest path is %d", actualTotal);
+	}
 	//Returns the pyramid that was traversed as a string
 	public String getPyramid(){
 		StringBuilder results = new StringBuilder();

src/main/java/mattrixwv/ProjectEuler/Problems/Problem19.java

@@ -1,7 +1,7 @@
 //ProjectEulerJava/src/main/java/mattrixwv/ProjectEuler/Problems/Problem19.java
 //Matthew Ellison
 // Created: 03-13-19
-//Modified: 08-26-20
+//Modified: 08-27-20
 //How many Sundays fell on the first of the month during the twentieth century (1 Jan 1901 to 31 Dec 2000)?
 /*
 You are given the following information, but you may prefer to do some research for yourself.
@@ -53,6 +53,7 @@ public class Problem19 extends Problem{
 	}
 	//Operational functions
 	//Solve the problem
+	@Override
 	public void solve(){
 		//If the problem has already been solved do nothing and end the function
 		if(solved){
@@ -79,9 +80,6 @@ public class Problem19 extends Problem{
 		//Stop the timer
 		timer.stop();
 
-		//Save the results
-		result = String.format("There are %d Sundays that landed on the first of the months from %d to %d\n", totalSundays, START_YEAR, END_YEAR);
-
 		//Throw a flag to show the problem is solved
 		solved = true;
 	}
@@ -109,21 +107,26 @@ public class Problem19 extends Problem{
 		}
 		//Add the correct number of days for every month
 		while(currentMonth < month){
-			//February
+			switch(currentMonth){
-			if(currentMonth == 2){
+				case  1:
-				if(isLeapYear(currentYear)){
+				case  3:
-					numDays += 29;
+				case  5:
-				}
+				case  7:
-				else{
+				case  8:
-					numDays += 28;
+				case 10:
-				}
+				case 12: numDays += 31; break;
-			}
+				case  4:
-			//31 day months
+				case  6:
-			else if((currentMonth == 1) || (currentMonth == 3) || (currentMonth == 5) || (currentMonth == 7) || (currentMonth == 8) || (currentMonth == 10) || (currentMonth == 12)){
+				case  9:
-				numDays += 31;
+				case 11: numDays += 30; break;
-			}
+				case  2: 
-			else{
+					if(isLeapYear(currentYear)){
-				numDays += 30;
+						numDays += 29;
+					}
+					else{
+						numDays += 28;
+					}
+					break;
 			}
 			++currentMonth;
 		}
@@ -183,11 +186,20 @@ public class Problem19 extends Problem{
 		return false;
 	}
 	//Reset the problem so it can be run again
+	@Override
 	public void reset(){
 		super.reset();
 		totalSundays = 0;
 	}
 	//Gets
+	//Returns the result of solving the problem
+	@Override
+	public String getResult(){
+		if(!solved){
+			throw new Unsolved();
+		}
+		return String.format("There are %d Sundays that landed on the first of the months from %d to %d", totalSundays, START_YEAR, END_YEAR);
+	}
 	//Returns the total sundays that were asked for
 	public long getTotalSundays(){
 		//If the problem hasn't been solved throw an exception

src/main/java/mattrixwv/ProjectEuler/Problems/Problem2.java

@@ -1,7 +1,7 @@
 //ProjectEulerJava/src/main/java/mattrixwv/ProjectEuler/Problems/Problem2.java
 //Matthew Ellison
 // Created: 03-01-19
-//Modified: 08-23-20
+//Modified: 08-27-20
 //The sum of the even Fibonacci numbers less than 4,000,000
 //Unless otherwise listed all non-standard includes are my own creation and available from https://bibucket.org/Mattrixwv/JavaClasses
 /*
@@ -39,11 +39,12 @@ public class Problem2 extends Problem{
 	//Functions
 	//Constructor
 	public Problem2(){
-		super("What is the sum of the even Fibonacci numbers less than 4,000,000?");
+		super(String.format("What is the sum of the even Fibonacci numbers less than %d?", (TOP_NUM + 1)));
 		fullSum = 0;
 	}
 	//Operational functions
 	//Solve the problem
+	@Override
 	public void solve(){
 		//If the problem has already been solved do nothing and end the function
 		if(solved){
@@ -53,7 +54,7 @@ public class Problem2 extends Problem{
 		//Start the timer
 		timer.start();
 
-		//Get a list of all fibonacci numbers < 4,000,000
+		//Get a list of all fibonacci numbers <= TOP_NUM
 		ArrayList<Integer> fibNums = Algorithms.getAllFib(TOP_NUM);
 		//Step through every element in the list checking if it is even
 		for(int num : fibNums){
@@ -68,16 +69,22 @@ public class Problem2 extends Problem{
 
 		//Throw a flag to show the problem is solved
 		solved = true;
-
-		//Save the results
-		result = String.format("The sum of all even fibonacci numbers <= %d is %d", TOP_NUM, fullSum);
 	}
 	//Reset the problem so it can be run again
+	@Override
 	public void reset(){
 		super.reset();
 		fullSum = 0;
 	}
 	//Gets
+	//Returns the result of solving the problem
+	@Override
+	public String getResult(){
+		if(!solved){
+			throw new Unsolved();
+		}
+		return String.format("The sum of all even fibonacci numbers <= %d is %d", TOP_NUM, fullSum);
+	}
 	//Returns the requested sum
 	public int getSum(){
 		//If the problem hasn't been solved throw an exception

src/main/java/mattrixwv/ProjectEuler/Problems/Problem20.java

@@ -1,7 +1,7 @@
 //ProjectEulerJava/src/main/java/mattrixwv/ProjectEuler/Problems/Problem20.java
 //Matthew Ellison
 // Created: 03-14-19
-//Modified: 07-18-20
+//Modified: 08-27-20
 //What is the sum of the digits of 100!?
 //Unless otherwise listed all non-standard includes are my own creation and available from https://bibucket.org/Mattrixwv/JavaClasses
 /*
@@ -34,17 +34,18 @@ public class Problem20 extends Problem{
 	private static final int TOP_NUM = 100;	//The largest number that will be multiplied
 	//Instance variables
 	private BigInteger num;	//Holds the number 100!
-	private long sum;	//The sum of the digts of num
+	private long sum;	//The sum of the digits of num
 
 	//Functions
 	//Constructor
 	public Problem20(){
-		super("What is the sum of the digits of 100!?");
+		super(String.format("What is the sum of the digits of %d!?", TOP_NUM));
 		num = BigInteger.ONE;
 		sum = 0;
 	}
 	//Operational functions
 	//Solve the problem
+	@Override
 	public void solve(){
 		//If the problem has already been solved do nothing and end the function
 		if(solved){
@@ -63,26 +64,32 @@ public class Problem20 extends Problem{
 		String numString = num.toString();
 		//Run through every character in the string, convert it back to an integer and add it to the running sum
 		for(int cnt = 0;cnt < numString.length();++cnt){
-			Character temp = numString.charAt(cnt);
+			Character digit = numString.charAt(cnt);
-			sum += Integer.valueOf(temp.toString());
+			sum += Integer.valueOf(digit.toString());
 		}
 
 		//Stop the timer
 		timer.stop();
 
-		//Save the results
-		result = String.format("%d! = %s\nThe sum of the digits is: %d\n", TOP_NUM, num.toString(), sum);
-
 		//Throw a flag to show the problem is solved
 		solved = true;
 	}
 	//Reset the problem so it can be run again
+	@Override
 	public void reset(){
 		super.reset();
 		num = BigInteger.ONE;
 		sum = 0;
 	}
 	//Gets
+	//Returns the result of solving the problem
+	@Override
+	public String getResult(){
+		if(!solved){
+			throw new Unsolved();
+		}
+		return String.format("%d! = %s\nThe sum of the digits is: %d", TOP_NUM, num.toString(), sum);
+	}
 	//Returns the number 100!
 	public BigInteger getNumber(){
 		//If the problem hasn't been solved throw an exception

src/main/java/mattrixwv/ProjectEuler/Problems/Problem21.java

@@ -1,7 +1,7 @@
 //ProjectEulerJava/src/main/java/mattrixwv/ProjectEuler/Problems/Problem21.java
 //Matthew Ellison
 // Created: 03-18-19
-//Modified: 07-19-20
+//Modified: 08-27-20
 //Evaluate the sum of all the amicable numbers under 10000
 //Unless otherwise listed all non-standard includes are my own creation and available from https://bibucket.org/Mattrixwv/JavaClasses
 /*
@@ -41,7 +41,7 @@ public class Problem21 extends Problem{
 	//Functions
 	//Constructor
 	public Problem21(){
-		super("Evaluate the sum of all the amicable numbers under 10000");
+		super(String.format("Evaluate the sum of all the amicable numbers under %d", LIMIT));
 		divisorSum = new ArrayList<Integer>();
 		amicable = new ArrayList<Integer>();
 		reserveArray();
@@ -56,6 +56,7 @@ public class Problem21 extends Problem{
 		}
 	}
 	//Solve the problem
+	@Override
 	public void solve(){
 		//If the problem has already been solved do nothing and end the function
 		if(solved){
@@ -97,17 +98,11 @@ public class Problem21 extends Problem{
 		//Stop the timer
 		timer.stop();
 
-		//Save the results
-		result = String.format("All amicable numbers less than %d are\n", LIMIT);
-		for(int cnt = 0;cnt < amicable.size();++cnt){
-			result += amicable.get(cnt).toString() + "\n";
-		}
-		result += String.format("The sum of all of these amicable numbers is %d\n", Algorithms.getSum(amicable));
-
 		//Throw a flag to show the problem is solved
 		solved = true;
 	}
 	//Reset the problem so it can be run again
+	@Override
 	public void reset(){
 		super.reset();
 		divisorSum.clear();
@@ -115,6 +110,20 @@ public class Problem21 extends Problem{
 		reserveArray();
 	}
 	//Gets
+	//Returns the result of solving the problem
+	@Override
+	public String getResult(){
+		if(!solved){
+			throw new Unsolved();
+		}
+		StringBuilder result = new StringBuilder(String.format("All amicable numbers less than %d are\n", LIMIT));
+		for(int cnt = 0;cnt < amicable.size();++cnt){
+			result.append(String.format("%d\n", amicable.get(cnt)));
+		}
+		result.append(String.format("The sum of all of these amicable numbers is %d", Algorithms.getSum(amicable)));
+
+		return result.toString();
+	}
 	//Returns a vector with all of the amicable numbers calculated
 	public ArrayList<Integer> getAmicable(){
 		//If the problem hasn't been solved throw an exception

src/main/java/mattrixwv/ProjectEuler/Problems/Problem22.java

@@ -1,7 +1,7 @@
 //ProjectEulerJava/src/main/java/mattrixwv/ProjectEuler/Problems/Problem22.java
 //Matthew Ellison
 // Created: 03-20-19
-//Modified: 07-19-20
+//Modified: 08-27-20
 //What is the total of all the name scores in this file?
 //Unless otherwise listed all non-standard includes are my own creation and available from https://bibucket.org/Mattrixwv/JavaClasses
 /*
@@ -406,6 +406,7 @@ public class Problem22 extends Problem{
 	//Instance variables
 	private ArrayList<Long> sums;	//Holds the score based on the sum of the characters in the name
 	private ArrayList<Long> prod;	//Holds the score based on the sum of the characters and the location in alphabetical order
+	private long sum;	//Holds the sum of the scores
 
 	//Functions
 	//Constructor
@@ -416,6 +417,7 @@ public class Problem22 extends Problem{
 	}
 	//Operational functions
 	//Solve the problem
+	@Override
 	public void solve(){
 		//If the problem has already been solved do nothing and end the function
 		if(solved){
@@ -442,24 +444,31 @@ public class Problem22 extends Problem{
 		}
 
 		//Get the sum of all the numbers
-		long sum = Algorithms.getLongSum(prod);
+		sum = Algorithms.getLongSum(prod);
 
 		//Stop the timer
 		timer.stop();
 
-		//Save the results
-		result = String.format("The answer to the question is %d\n", sum);
-
 		//Throw a flag to show the problem is solved
 		solved = true;
 	}
 	//Reset the problem so it can be run again
+	@Override
 	public void reset(){
 		super.reset();
 		sums.clear();
 		prod.clear();
+		sum = 0;
 	}
 	//Gets
+	//Returns the result of solving the problem
+	@Override
+	public String getResult(){
+		if(!solved){
+			throw new Unsolved();
+		}
+		return String.format("The answer to the question is %d", sum);
+	}
 	//Returns the vector of the names being scored
 	public ArrayList<String> getNames(){
 		//If the problem hasn't been solved throw an exception

src/main/java/mattrixwv/ProjectEuler/Problems/Problem23.java

@@ -1,7 +1,7 @@
 //ProjectEulerJava/src/main/java/mattrixwv/ProjectEuler/Problems/Problem23.java
 //Matthew Ellison
 // Created: 03-22-19
-//Modified: 07-19-20
+//Modified: 08-27-20
 //Find the sum of all the positive integers which cannot be written as the sum of two abundant numbers
 //Unless otherwise listed all non-standard includes are my own creation and available from https://bibucket.org/Mattrixwv/JavaClasses
 /*
@@ -55,6 +55,7 @@ public class Problem23 extends Problem{
 		}
 	}
 	//Solve the problem
+	@Override
 	public void solve(){
 		//If the problem has already been solved do nothing and end the function
 		if(solved){
@@ -92,9 +93,6 @@ public class Problem23 extends Problem{
 		//Stop the timer
 		timer.stop();
 
-		//Save the results
-		result = String.format("The answer is %d\n", sum);
-
 		//Throw a flag to show the problem is solved
 		solved = true;
 	}
@@ -118,6 +116,7 @@ public class Problem23 extends Problem{
 		return false;
 	}
 	//Reset the problem so it can be run again
+	@Override
 	public void reset(){
 		super.reset();
 		divisorSums.clear();
@@ -125,6 +124,14 @@ public class Problem23 extends Problem{
 		sum = 0;
 	}
 	//Gets
+	//Returns the result of solving the problem
+	@Override
+	public String getResult(){
+		if(!solved){
+			throw new Unsolved();
+		}
+		return String.format("The answer is %d", sum);
+	}
 	//Returns the sum of the numbers asked for
 	public long getSum(){
 		//If the problem hasn't been solved throw an exception

src/main/java/mattrixwv/ProjectEuler/Problems/Problem24.java

@@ -1,7 +1,7 @@
 //ProjectEulerJava/src/main/java/mattrixwv/ProjectEuler/Problems/Problem24.java
 //Matthew Ellison
 // Created: 03-24-19
-//Modified: 07-19-20
+//Modified: 08-27-20
 //What is the millionth lexicographic permutation of the digits 0, 1, 2, 3, 4, 5, 6, 7, 8 and 9?
 //Unless otherwise listed all non-standard includes are my own creation and available from https://bibucket.org/Mattrixwv/JavaClasses
 /*
@@ -40,11 +40,12 @@ public class Problem24 extends Problem{
 	//Functions
 	//Constructor
 	public Problem24(){
-		super("What is the millionth lexicographic permutation of the digits 0, 1, 2, 3, 4, 5, 6, 7, 8 and 9?");
+		super(String.format("What is the millionth lexicographic permutation of the digits %s?", nums));
 		permutations = new ArrayList<String>();
 	}
 	//Operational functions
 	//Solve the problems
+	@Override
 	public void solve(){
 		//If the problem has already been solved do nothing and end the function
 		if(solved){
@@ -60,18 +61,24 @@ public class Problem24 extends Problem{
 		//Stop the timer
 		timer.stop();
 
-		//Save the results
-		result = String.format("The 1 millionth permutation is %s\n", permutations.get(NEEDED_PERM - 1));
-
 		//Throw a flag to show the problem is solved
 		solved = true;
 	}
 	//Reset the problem so it can be run again
+	@Override
 	public void reset(){
 		super.reset();
 		permutations.clear();
 	}
 	//Gets
+	//Returns the result of solving the problem
+	@Override
+	public String getResult(){
+		if(!solved){
+			throw new Unsolved();
+		}
+		return String.format("The 1 millionth permutation is %s", permutations.get(NEEDED_PERM - 1));
+	}
 	//Returns an ArrayList with all of the permutations
 	public ArrayList<String> getPermutationsList(){
 		//If the problem hasn't been solved throw an exception

src/main/java/mattrixwv/ProjectEuler/Problems/Problem25.java

@@ -1,7 +1,7 @@
 //ProjectEulerJava/src/main/java/mattrixwv/ProjectEuler/Problems/Problem25.java
 //Matthew Ellison
 // Created: 03-25-19
-//Modified: 07-19-20
+//Modified: 08-27-20
 //What is the index of the first term in the Fibonacci sequence to contain 1000 digits?
 //Unless otherwise listed all non-standard includes are my own creation and available from https://bibucket.org/Mattrixwv/JavaClasses
 /*
@@ -40,12 +40,13 @@ public class Problem25 extends Problem{
 	//Functions
 	//Constructor
 	public Problem25(){
-		super("What is the index of the first term in the Fibonacci sequence to contain 1000 digits?");
+		super(String.format("What is the index of the first term in the Fibonacci sequence to contain %d digits?", NUM_DIGITS));
 		number = BigInteger.ZERO;
 		index = BigInteger.TWO;
 	}
 	//Operational functions
 	//Solve the problem
+	@Override
 	public void solve(){
 		//If the problem has already been solved do nothing and end the function
 		if(solved){
@@ -64,19 +65,25 @@ public class Problem25 extends Problem{
 		//Stop the timer
 		timer.stop();
 
-		//Save the results
-		result = String.format("The first Fibonacci number with %d digits is %s\nIts index is %d\n", NUM_DIGITS, number.toString(), index);
-
 		//Throw a flag to show the problem is solved
 		solved = true;
 	}
 	//Reset the problem so it can be run again
+	@Override
 	public void reset(){
 		super.reset();
 		number = BigInteger.ZERO;
 		index = BigInteger.TWO;
 	}
 	//Gets
+	//Returns the result of solving the problem
+	@Override
+	public String getResult(){
+		if(!solved){
+			throw new Unsolved();
+		}
+		return String.format("The first Fibonacci number with %d digits is %s\nIts index is %d", NUM_DIGITS, number.toString(), index);
+	}
 	//Returns the Fibonacci number asked for
 	public BigInteger getNumber(){
 		//If the problem hasn't been solved throw an exception

src/main/java/mattrixwv/ProjectEuler/Problems/Problem26.java

@@ -1,7 +1,7 @@
 //ProjectEulerJava/src/main/java/mattrixwv/ProjectEuler/Problems/Problem26.java
 //Matthew Ellison
 // Created: 07-28-19
-//Modified: 07-19-20
+//Modified: 08-27-20
 //Find the value of d < 1000 for which 1/d contains the longest recurring cycle in its decimal fraction part.
 //Unless otherwise listed all non-standard includes are my own creation and available from https://bibucket.org/Mattrixwv/JavaClasses
 /*
@@ -40,7 +40,7 @@ public class Problem26 extends Problem{
 	//Functions
 	//Constructor
 	public Problem26(){
-		super("Find the value of d < 1000 for which 1/d contains the longest recurring cycle in its decimal fraction part.");
+		super(String.format("Find the value of d <= %d for which 1/d contains the longest recurring cycle in its decimal fraction part.", TOP_NUM));
 		longestCycle = 0;
 		longestNumber = 0;
 	}
@@ -96,9 +96,6 @@ public class Problem26 extends Problem{
 		//Stop the timer
 		timer.stop();
 
-		//Save the results
-		result = String.format("The longest cycle is %d digits long\nIt started with the number %d\n", longestCycle, longestNumber);
-
 		//Throw a flag to show the problem is solved
 		solved = true;
 	}
@@ -109,6 +106,14 @@ public class Problem26 extends Problem{
 		longestNumber = 1;
 	}
 	//Gets
+	//Returns the result of solving the problem
+	@Override
+	public String getResult(){
+		if(!solved){
+			throw new Unsolved();
+		}
+		return String.format("The longest cycle is %d digits long\nIt started with the number %d", longestCycle, longestNumber);
+	}
 	//Returns the length of the longest cycle
 	public int getLongestCycle(){
 		//If the problem hasn't been solved throw an exception

src/main/java/mattrixwv/ProjectEuler/Problems/Problem27.java

@@ -1,7 +1,7 @@
 //ProjectEulerJava/src/main/java/mattrixwv/ProjectEuler/Problems/Problem27.java
 //Matthew Ellison
 // Created: 09-15-19
-//Modified: 07-19-20
+//Modified: 08-27-20
 //Find the product of the coefficients, |a| < 1000 and |b| <= 1000, for the quadratic expression that produces the maximum number of primes for consecutive values of n, starting with n=0.
 //Unless otherwise listed all non-standard includes are my own creation and available from https://bibucket.org/Mattrixwv/JavaClasses
 /*
@@ -31,6 +31,9 @@ import java.util.ArrayList;
 
 public class Problem27 extends Problem{
 	//Variables
+	//Static varibles
+	private static int LARGEST_POSSIBLE_A = 999;
+	private static int LARGEST_POSSIBLE_B = 1000;
 	//Instance variables
 	private int topA;	//The A for the most n's generated
 	private int topB;	//The B for the most n's generated
@@ -40,7 +43,7 @@ public class Problem27 extends Problem{
 	//Functions
 	//Constructor
 	public Problem27(){
-		super("Find the product of the coefficients, |a| < 1000 and |b| <= 1000, for the quadratic expression that produces the maximum number of primes for consecutive values of n, starting with n=0");
+		super(String.format("Find the product of the coefficients, |a| <= %d and |b| <= %d, for the quadratic expression that produces the maximum number of primes for consecutive values of n, starting with n=0", LARGEST_POSSIBLE_A, LARGEST_POSSIBLE_B));
 		topA = 0;
 		topB = 0;
 		topN = 0;
@@ -48,6 +51,7 @@ public class Problem27 extends Problem{
 	}
 	//Operational functions
 	//Solve the problem
+	@Override
 	public void solve(){
 		//If the problem has already been solved do nothing and end the function
 		if(solved){
@@ -61,9 +65,9 @@ public class Problem27 extends Problem{
 		primes = Algorithms.getPrimes(12000);
 
 		//Start with the lowest possible A and check all possibilities after that
-		for(int a = -999;a <= 999;++a){
+		for(int a = -LARGEST_POSSIBLE_A;a <= LARGEST_POSSIBLE_A;++a){
 			//Start with the lowest possible B and check all possibilities after that
-			for(int b = -1000;b <=1000;++b){
+			for(int b = -LARGEST_POSSIBLE_B;b <= LARGEST_POSSIBLE_B;++b){
 				//Start with n=0 and check the formula to see how many primes you can get with concecutive n's
 				int n = 0;
 				int quadratic = (n * n) + (a * n) + b;
@@ -85,13 +89,11 @@ public class Problem27 extends Problem{
 		//Stop the timer
 		timer.stop();
 
-		//Save the restuls
-		result = String.format("The greatest number of primes found is %d\nIt was found with A = %d, B = %d\nThe product of A and B is %d\n", topN, topA, topB, topA * topB);
-
 		//Throw a flag to show the problem is solved
 		solved = true;
 	}
 	//Reset the problem so it can be run again
+	@Override
 	public void reset(){
 		super.reset();
 		topA = 0;
@@ -100,6 +102,14 @@ public class Problem27 extends Problem{
 		primes.clear();
 	}
 	//Gets
+	//Returns the result of solving the problem
+	@Override
+	public String getResult(){
+		if(!solved){
+			throw new Unsolved();
+		}
+		return String.format("The greatest number of primes found is %d\nIt was found with A = %d, B = %d\nThe product of A and B is %d", topN, topA, topB, topA * topB);
+	}
 	//Returns the top A that was generated
 	public int getTopA(){
 		//If the problem hasn't been solved throw an exception

src/main/java/mattrixwv/ProjectEuler/Problems/Problem28.java

@@ -1,7 +1,7 @@
 //ProjectEulerJava/src/main/java/mattrixwv/ProjectEuler/Problems/Problem28.java
 //Matthew Ellison
 // Created: 09-22-19
-//Modified: 07-19-20
+//Modified: 08-27-20
 //What is the sum of the numbers on the diagonals in a 1001 by 1001 spiral formed by starting with the number 1 and moving to the right in a clockwise direction a 5 by 5 spiral
 //Unless otherwise listed all non-standard includes are my own creation and available from https://bibucket.org/Mattrixwv/JavaClasses
 /*
@@ -116,6 +116,7 @@ public class Problem28 extends Problem{
 		}
 	}
 	//Solve the problem
+	@Override
 	public void solve(){
 		//If the problem has already been solved do nothing and end the function
 		if(solved){
@@ -133,18 +134,24 @@ public class Problem28 extends Problem{
 		//Stop the timer
 		timer.stop();
 
-		//Print the restuls
-		result = String.format("The sum of the diagonals in the given grid is %d\n", sumOfDiagonals);
-
 		//Throw a flag to show the problem is solved
 		solved = true;
 	}
 	//Reset the problem so it can be run again
+	@Override
 	public void reset(){
 		super.reset();
 		sumOfDiagonals = 0;
 	}
 	//Gets
+	//Returns the result of solving the problem
+	@Override
+	public String getResult(){
+		if(!solved){
+			throw new Unsolved();
+		}
+		return String.format("The sum of the diagonals in the given grid is %d", sumOfDiagonals);
+	}
 	//Returns the grid
 	public ArrayList<ArrayList<Integer>> getGrid(){
 		//If the problem hasn't been solved throw an exception

src/main/java/mattrixwv/ProjectEuler/Problems/Problem29.java

@@ -1,7 +1,7 @@
 //ProjectEulerJava/src/main/java/mattrixwv/ProjectEuler/Problems/Problem29.java
 //Matthew Ellison
 // Created: 10-09-19
-//Modified: 07-19-20
+//Modified: 08-27-20
 //How many distinct terms are in the sequence generated by a^b for 2 <= a <= 100 and 2 <= b <= 100?
 //Unless otherwise listed all non-standard includes are my own creation and available from https://bibucket.org/Mattrixwv/JavaClasses
 /*
@@ -23,12 +23,11 @@
 package mattrixwv.ProjectEuler.Problems;
 
 
+import java.math.BigInteger;
 import java.util.ArrayList;
 
 import mattrixwv.ProjectEuler.Unsolved;
 
-import java.math.BigInteger;
-
 
 public class Problem29 extends Problem{
 	//Variables
@@ -43,11 +42,12 @@ public class Problem29 extends Problem{
 	//Functions
 	//Constructor
 	public Problem29(){
-		super("How many distinct terms are in the sequence generated by a^b for 2 <= a <= 100 and 2 <= b <= 100?");
+		super(String.format("How many distinct terms are in the sequence generated by a^b for %d <= a <= %d and %d <= b <= %d?", BOTTOM_A, TOP_A, BOTTOM_B, TOP_B));
 		unique = new ArrayList<BigInteger>();
 	}
 	//Operational functions
 	//Solve the problem
+	@Override
 	public void solve(){
 		//If the problem has already been solved do nothing and end the function
 		if(solved){
@@ -73,18 +73,24 @@ public class Problem29 extends Problem{
 		//Stop the timer
 		timer.stop();
 
-		//Print the results
-		result = String.format("The number of unique values generated by a^b for %d <= a <= %d and %d <= b <= %d is %d\n", BOTTOM_A, TOP_A, BOTTOM_B, TOP_B, unique.size());
-
 		//Throw a flag to show the problem is solved
 		solved = true;
 	}
 	//Reset the problem so it can be run again
+	@Override
 	public void reset(){
 		super.reset();
 		unique.clear();
 	}
 	//Gets
+	//Returns the result of solving the problem
+	@Override
+	public String getResult(){
+		if(!solved){
+			throw new Unsolved();
+		}
+		return String.format("The number of unique values generated by a^b for %d <= a <= %d and %d <= b <= %d is %d", BOTTOM_A, TOP_A, BOTTOM_B, TOP_B, unique.size());
+	}
 	//Returns the lowest possible value for a
 	public int getBottomA(){
 		//If the problem hasn't been solved throw an exception

src/main/java/mattrixwv/ProjectEuler/Problems/Problem3.java

@@ -1,7 +1,7 @@
 //ProjectEulerJava/src/main/java/mattrixwv/ProjectEuler/Problems/Problem3.java
 //Matthew Ellison
 // Created: 03-01-19
-//Modified: 08-23-20
+//Modified: 08-27-20
 //The largest prime factor of 600851475143
 //Unless otherwise listed all non-standard includes are my own creation and available from https://bibucket.org/Mattrixwv/JavaClasses
 /*
@@ -40,11 +40,12 @@ public class Problem3 extends Problem{
 	//Functions
 	//Constructor
 	public Problem3(){
-		super("What is the largest prime factor of 600851475143?");
+		super(String.format("What is the largest prime factor of %d?", GOAL_NUMBER));
 		factors = new ArrayList<Long>();
 	}
 	//Operational functions
 	//Solve the problem
+	@Override
 	public void solve() throws InvalidResult{
 		//If the problem has already been solved do nothing and end the function
 		if(solved){
@@ -63,16 +64,22 @@ public class Problem3 extends Problem{
 
 		//Throw a flag to show the problem is solved
 		solved = true;
-
-		//Save the results
-		result = String.format("The largest factor of the number %d is %d", GOAL_NUMBER, factors.get(factors.size() - 1));
 	}
 	//Reset the problem so it can be run again
+	@Override
 	public void reset(){
 		super.reset();
 		factors.clear();
 	}
 	//Gets
+	//Returns the result of solving the problem
+	@Override
+	public String getResult(){
+		if(!solved){
+			throw new Unsolved();
+		}
+		return String.format("The largest factor of the number %d is %d", GOAL_NUMBER, factors.get(factors.size() - 1));
+	}
 	//Returns the list of factors of the number
 	public ArrayList<Long> getFactors(){
 		//If the problem hasn't been solved throw an exception

src/main/java/mattrixwv/ProjectEuler/Problems/Problem30.java

@@ -1,7 +1,7 @@
 //ProjectEulerJava/src/main/java/mattrixwv/ProjectEuler/Problems/Problem30.java
 //Matthew Ellison
 // Created: 10-27-19
-//Modified: 07-19-20
+//Modified: 08-27-20
 //Find the sum of all the numbers that can be written as the sum of the fifth powers of their digits.
 //Unless otherwise listed all non-standard includes are my own creation and available from https://bibucket.org/Mattrixwv/JavaClasses
 /*
@@ -58,6 +58,7 @@ public class Problem30 extends Problem{
 		return listOfDigits;
 	}
 	//Solve the problem
+	@Override
 	public void solve(){
 		//If the problem has already been solved do nothing and end the function
 		if(solved){
@@ -86,18 +87,24 @@ public class Problem30 extends Problem{
 		//Stop the timer
 		timer.stop();
 
-		//Print the results
-		result = String.format("The sum of all the numbers that can be written as the sum of the fifth powers of their digits is %d\n", Algorithms.getLongSum(sumOfFifthNumbers));
-
 		//Throw a flag to show the problem is solved
 		solved = true;
 	}
 	//Reset the problem so it can be run again
+	@Override
 	public void reset(){
 		super.reset();
 		sumOfFifthNumbers.clear();
 	}
 	//Gets
+	//Returns the result of solving the problem
+	@Override
+	public String getResult(){
+		if(!solved){
+			throw new Unsolved();
+		}
+		return String.format("The sum of all the numbers that can be written as the sum of the fifth powers of their digits is %d", Algorithms.getLongSum(sumOfFifthNumbers));
+	}
 	//This returns the top number to be checked
 	public long getTopNum(){
 		//If the problem hasn't been solved throw an exception

src/main/java/mattrixwv/ProjectEuler/Problems/Problem31.java

@@ -1,7 +1,7 @@
 //ProjectEulerJava/src/main/java/mattrixwv/ProjectEuler/Problems/Problem31.java
 //Matthew Ellison
 // Created: 06-19-20
-//Modified: 07-19-20
+//Modified: 08-27-20
 //How many different ways can £2 be made using any number of coins?
 //Unless otherwise listed all non-standard includes are my own creation and available from https://bibucket.org/Mattrixwv/JavaClasses
 /*
@@ -22,8 +22,10 @@
 */
 package mattrixwv.ProjectEuler.Problems;
 
+
 import mattrixwv.ProjectEuler.Unsolved;
 
+
 public class Problem31 extends Problem{
 	//Variables
 	//Static variables
@@ -68,18 +70,24 @@ public class Problem31 extends Problem{
 		//Stop the timer
 		timer.stop();
 
-		//Save the result
-		result = String.format("There are %d ways to make 2 pounds with the given denominations of coins", permutations);
-
 		//Throw a flag to show the problem is solved
 		solved = true;
 	}
 	//Reset the problem so it can be run again
+	@Override
 	public void reset(){
 		super.reset();
 		permutations = 0;
 	}
 	//Gets
+	//Returns the result of solving the problem
+	@Override
+	public String getResult(){
+		if(!solved){
+			throw new Unsolved();
+		}
+		return String.format("There are %d ways to make 2 pounds with the given denominations of coins", permutations);
+	}
 	//Returns the number of correct permutations of the coins
 	public int getPermutations(){
 		//If the problem hasn't been solved throw an exception

src/main/java/mattrixwv/ProjectEuler/Problems/Problem32.java

@@ -1,7 +1,7 @@
 //ProjectEulerJava/src/main/java/mattrixwv/ProjectEuler/Problems/Problem32.java
 //Matthew Ellison
 // Created: 07-27-20
-//Modified: 07-27-20
+//Modified: 08-27-20
 //Find the sum of all products whose multiplicand/multiplier/product identity can be written as a 1 through 9 pandigital.
 //Unless otherwise listed all non-standard includes are my own creation and available from https://bibucket.org/Mattrixwv/JavaClasses
 /*
@@ -87,6 +87,7 @@ public class Problem32 extends Problem{
 	}
 	//Operational functions
 	//Solve the problem
+	@Override
 	public void solve(){
 		//If the problem has already been solved do nothing and end the function
 		if(solved){
@@ -122,9 +123,6 @@ public class Problem32 extends Problem{
 		//Stop the timer
 		timer.stop();
 
-		//Save the results
-		result = String.format("There are %d unique 1-9 pandigitals\nThe sum of the products of these pandigitals is %d", listOfProducts.size(), sumOfPandigitals);
-
 		//Throw a flag to show the problem is solved
 		solved = true;
 	}
@@ -148,12 +146,20 @@ public class Problem32 extends Problem{
 		return true;
 	}
 	//Reset the problem so it can be run again
+	@Override
 	public void reset(){
 		super.reset();
 		listOfProducts.clear();
 		sumOfPandigitals = 0;
 	}
 	//Gets
+	@Override
+	public String getResult(){
+		if(!solved){
+			throw new Unsolved();
+		}
+		return String.format("There are %d unique 1-9 pandigitals\nThe sum of the products of these pandigitals is %d", listOfProducts.size(), sumOfPandigitals);
+	}
 	//Returns the sum of the pandigitals
 	public long getSumOfPandigitals(){
 		//If the problem hasn't been solved throw an exception

src/main/java/mattrixwv/ProjectEuler/Problems/Problem4.java

@@ -1,7 +1,7 @@
 //ProjectEulerJava/src/main/java/mattrixwv/ProjectEuler/Problems/Problem4.java
 //Matthew Ellison
 // Created: 03-01-19
-//Modified: 08-23-20
+//Modified: 08-27-20
 //Find the largest palindrome made from the product of two 3-digit numbers
 //Unless otherwise listed all non-standard includes are my own creation and available from https://bibucket.org/Mattrixwv/JavaClasses
 /*
@@ -44,6 +44,7 @@ public class Problem4 extends Problem{
 	}
 	//Operational functions
 	//Solve the problem
+	@Override
 	public void solve(){
 		//If the problem has already been solved do nothing and end the function
 		if(solved){
@@ -80,16 +81,22 @@ public class Problem4 extends Problem{
 
 		//Throw a flag to show the problem is solved
 		solved = true;
-
-		//Save the results
-		result = String.format("The largest palindrome is %d", palindromes.get(palindromes.size() - 1));
 	}
 	//Reset the problem so it can be run again
+	@Override
 	public void reset(){
 		super.reset();
 		palindromes.clear();
 	}
 	//Gets
+	//Returns the result of solving the problem
+	@Override
+	public String getResult(){
+		if(!solved){
+			throw new Unsolved();
+		}
+		return String.format("The largest palindrome is %d", palindromes.get(palindromes.size() - 1));
+	}
 	//Returns the list of all palindromes
 	public ArrayList<Integer> getPalindromes(){
 		//If the problem hasn't been solved throw an exception

src/main/java/mattrixwv/ProjectEuler/Problems/Problem5.java

@@ -1,7 +1,7 @@
 //ProjectEulerJava/src/main/java/mattrixwv/ProjectEuler/Problems/Problem5.java
 //Matthew Ellison
 // Created: 03-01-19
-//Modified: 08-23-20
+//Modified: 08-27-20
 //What is the smallest positive number that is evenly divisible by all of the numbers from 1 to 20?
 //Unless otherwise listed all non-standard includes are my own creation and available from https://bibucket.org/Mattrixwv/JavaClasses
 /*
@@ -22,8 +22,10 @@
 */
 package mattrixwv.ProjectEuler.Problems;
 
+
 import mattrixwv.ProjectEuler.Unsolved;
 
+
 public class Problem5 extends Problem{
 	//Variables
 	//Instance variables
@@ -37,6 +39,7 @@ public class Problem5 extends Problem{
 	}
 	//Operational functions
 	//Solve the problem
+	@Override
 	public void solve(){
 		//If the problem has already been solved do nothing and end the function
 		if(solved){
@@ -73,16 +76,22 @@ public class Problem5 extends Problem{
 
 		//Throw a flag to show the problem is solved
 		solved = true;
-
-		//Save the results
-		result = String.format("The smallest positive number evenly divisible by all numbers 1-20 is " + currentNum);
 	}
 	//Reset the problem so it can be run again
+	@Override
 	public void reset(){
 		super.reset();
 		smallestNum = 0;
 	}
 	//Gets
+	//Returns the result of solving the problem
+	@Override
+	public String getResult(){
+		if(!solved){
+			throw new Unsolved();
+		}
+		return String.format("The smallest positive number evenly divisible by all numbers 1-20 is " + smallestNum);
+	}
 	//Returns the requested number
 	public int getNumber(){
 		//If the problem hasn't been solved throw an exception

src/main/java/mattrixwv/ProjectEuler/Problems/Problem6.java

@@ -1,7 +1,7 @@
 //ProjectEulerJava/src/main/java/mattrixwv/ProjectEuler/Problems/Problem6.java
 //Matthew Ellison
 // Created: 03-01-19
-//Modified: 08-23-20
+//Modified: 08-27-20
 //Find the difference between the sum of the squares of the first one hundred natural numbers and the square of the sum.
 //Unless otherwise listed all non-standard includes are my own creation and available from https://bibucket.org/Mattrixwv/JavaClasses
 /*
@@ -36,12 +36,13 @@ public class Problem6 extends Problem{
 	//Functions
 	//Constructor
 	public Problem6(){
-		super("Find the difference between the sum of the squares of the first one hundred natural numbers and the square of the sum.");
+		super(String.format("Find the difference between the sum of the squares and the square of the sum of the numbers %d-%d.", START_NUM, END_NUM));
 		sumOfSquares = 0;
 		squareOfSum = 0;
 	}
 	//Operational functions
 	//Solve the problem
+	@Override
 	public void solve(){
 		//If the problem has already been solved do nothing and end the function
 		if(solved){
@@ -64,17 +65,23 @@ public class Problem6 extends Problem{
 
 		//Throw a flag to show the problem is solved
 		solved = true;
-
-		//Save the results
-		result = String.format("The difference between the sum of the squares and the square of the sum of all numbers from 1-100 is %d", Math.abs(sumOfSquares - squareOfSum));
 	}
 	//Reset the problem so it can be run again
+	@Override
 	public void reset(){
 		super.reset();
 		squareOfSum = 0;
 		sumOfSquares = 0;
 	}
 	//Gets
+	//Returns the result of solving the problem
+	@Override
+	public String getResult(){
+		if(!solved){
+			throw new Unsolved();
+		}
+		return String.format("The difference between the sum of the squares and the square of the sum of all numbers from 1-100 is %d", Math.abs(sumOfSquares - squareOfSum));
+	}
 	//Returns the sum of all the squares
 	public long getSumOfSquares(){
 		//If the problem hasn't been solved throw an exception

src/main/java/mattrixwv/ProjectEuler/Problems/Problem7.java

@@ -1,7 +1,7 @@
 //ProjectEulerJava/src/main/java/mattrixwv/ProjectEuler/Problems/Problem7.java
 //Matthew Ellison
 // Created: 03-01-19
-//Modified: 08-23-20
+//Modified: 08-27-20
 //What is the 10001th prime number?
 //Unless otherwise listed all non-standard includes are my own creation and available from https://bibucket.org/Mattrixwv/JavaClasses
 /*
@@ -39,11 +39,12 @@ public class Problem7 extends Problem{
 	//Functions
 	//Constructor
 	public Problem7(){
-		super("What is the 10001th prime number?");
+		super(String.format("What is the %dth prime number?", NUMBER_OF_PRIMES));
 		primes = new ArrayList<Long>();
 	}
 	//Operational functions
 	//Solve the problem
+	@Override
 	public void solve(){
 		//If the problem has already been solved do nothing and end the function
 		if(solved){
@@ -61,16 +62,22 @@ public class Problem7 extends Problem{
 
 		//Throw a flag to show the problem is solved
 		solved = true;
-
-		//Save the results
-		result = String.format("The " + NUMBER_OF_PRIMES + "th prime number is " + primes.get(primes.size() - 1));
 	}
 	//Reset the problem so it can be run again
+	@Override
 	public void reset(){
 		super.reset();
 		primes.clear();
 	}
 	//Gets
+	//Returns the result of solving the problem
+	@Override
+	public String getResult(){
+		if(!solved){
+			throw new Unsolved();
+		}
+		return String.format("The %dth prime number is %d", NUMBER_OF_PRIMES, primes.get(primes.size() - 1));
+	}
 	//Returns the requested prime number
 	public long getPrime(){
 		//If the problem hasn't been solved throw an exception

src/main/java/mattrixwv/ProjectEuler/Problems/Problem8.java

@@ -1,7 +1,7 @@
 //ProjectEulerJava/src/main/java/mattrixwv/ProjectEuler/Problems/Problem8.java
 //Matthew Ellison
 // Created: 03-28-19
-//Modified: 08-23-20
+//Modified: 08-27-20
 //Find the thirteen adjacent digits in the 1000-digit number that have the greatest product. What is the value of this product?
 /*
 73167176531330624919225119674426574742355349194934
@@ -64,6 +64,7 @@ public class Problem8 extends Problem{
 	}
 	//Operational functions
 	//Solve the problem
+	@Override
 	public void solve(){
 		//If the problem has already been solved do nothing and end the function
 		if(solved){
@@ -89,17 +90,23 @@ public class Problem8 extends Problem{
 
 		//Throw a flag to show the problem is solved
 		solved = true;
-
-		//Save the results
-		result = String.format("The greatest product is " + maxProduct + "\nThe numbers are " + maxNums);
 	}
 	//Reset the problem so it can be run again
+	@Override
 	public void reset(){
 		super.reset();
 		maxNums = "";
 		maxProduct = 0;
 	}
 	//Gets
+	//Returns the result of solving the problem
+	@Override
+	public String getResult(){
+		if(!solved){
+			throw new Unsolved();
+		}
+		return String.format("The greatest product is %d\nThe numbers are %d", maxProduct, maxNums);
+	}
 	//Returns the string of numbers that produces the largest product
 	public String getLargestNums(){
 		//If the problem hasn't been solved throw an exception

src/main/java/mattrixwv/ProjectEuler/Problems/Problem9.java

@@ -1,7 +1,7 @@
 //ProjectEulerJava/src/main/java/mattrixwv/ProjectEuler/Problems/Problem9.java
 //Matthew Ellison
 // Created: 03-02-19
-//Modified: 08-26-20
+//Modified: 08-27-20
 //There exists exactly one Pythagorean triplet for which a + b + c = 1000. Find the product abc.
 //Unless otherwise listed all non-standard includes are my own creation and available from https://bibucket.org/Mattrixwv/JavaClasses
 /*
@@ -22,20 +22,24 @@
 */
 package mattrixwv.ProjectEuler.Problems;
 
+
 import mattrixwv.ProjectEuler.Unsolved;
 
+
 public class Problem9 extends Problem{
 	//Variables
+	//Static variables
+	private static int GOAL_SUM = 1000;	//The number that we want the sum of a, b, and c to equal
 	//Instance variables
-	private int a;		//Holds the size of the first side
+	private int a;		//The size of the first side
-	private int b;		//Holds the size of the second side
+	private int b;		//The size of the second side
-	private double c;	//Holds the size of the hyp
+	private double c;	//The size of the hyp
 	private boolean found;	//A flag to determine if we have found the solution yet
 
 	//Functions
 	//Constructor
 	public Problem9(){
-		super("There exists exactly one Pythagorean triplet for which a + b + c = 1000. Find the product abc.");
+		super(String.format("There exists exactly one Pythagorean triplet for which a + b + c = %d. Find the product abc.", GOAL_SUM));
 		a = 1;
 		b = 0;
 		c = 0;
@@ -43,6 +47,7 @@ public class Problem9 extends Problem{
 	}
 	//Operational functions
 	//Solve the problem
+	@Override
 	public void solve(){
 		//If the problem has already been solved do nothing and end the function
 		if(solved){
@@ -53,18 +58,18 @@ public class Problem9 extends Problem{
 		timer.start();
 
 		//Loop through all possible a's
-		while((a < 1000) && !found){
+		while((a < GOAL_SUM) && !found){
 			b = a + 1;	//b must be larger than a
 			c = Math.sqrt((a * a) + (b * b));	//Compute the hyp
 	
 			//Loop through all possible b's for this a
-			while((a + b + c) < 1000){
+			while((a + b + c) < GOAL_SUM){
 				++b;
 				c = Math.sqrt((a * a) + (b * b));
 			}
 
 			//If the sum == 1000 you found the number, otherwise go to the next possible a
-			if((a + b + c) == 1000){
+			if((a + b + c) == GOAL_SUM){
 				found = true;
 			}
 			else{
@@ -72,21 +77,18 @@ public class Problem9 extends Problem{
 			}
 		}
 
+		if(!found){
+			throw new Unsolved("The problem was not solved!");
+		}
+
 		//Stop the timer
 		timer.stop();
 
 		//Throw a flag to show the problem is solved
 		solved = true;
-
-		//Save the results
-		if(found){
-			result = String.format("The Pythagorean triplet is %d + %d + %d\nThe numbers' product is %d", a, b, Math.round(c), a * b * Math.round(c));
-		}
-		else{
-			result = "The number was not found!";
-		}
 	}
 	//Reset the problem so it can be run again
+	@Override
 	public void reset(){
 		super.reset();
 		a = 1;
@@ -95,6 +97,14 @@ public class Problem9 extends Problem{
 		found = false;
 	}
 	//Gets
+	//Returns the result of solving the problem
+	@Override
+	public String getResult(){
+		if(!solved){
+			throw new Unsolved();
+		}
+		return String.format("The Pythagorean triplet is %d + %d + %d\nThe numbers' product is %d", a, b, Math.round(c), a * b * Math.round(c));
+	}
 	//Returns the length of the first side
 	public int getSideA(){
 		//If the problem hasn't been solved throw an exception