Added javadoc comments
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@@ -1,10 +1,10 @@
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//JavaClasses/src/main/java/mattrixwv/ArrayAlgorithms.java
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//Matthew Ellison
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// Created: 07-03-21
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//Modified: 06-25-22
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//Modified: 08-11-24
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//This class contains algorithms for vectors that I've found it useful to keep around
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/*
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Copyright (C) 2022 Matthew Ellison
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Copyright (C) 2024 Matthew Ellison
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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@@ -28,9 +28,26 @@ import java.util.List;
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import java.util.StringJoiner;
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/**
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* The {@code ArrayAlgorithms} class provides static utility methods for performing
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* arithmetic operations on collections of numbers, including integers, longs, and BigIntegers.
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* It also includes utility methods for printing and converting lists.
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*
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* <p>This class is not intended to be instantiated.</p>
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*/
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public class ArrayAlgorithms{
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/**
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* Private constructor to prevent instantiation of this utility class.
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*/
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private ArrayAlgorithms(){}
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//This function returns the sum of all elements in the list
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//?This function returns the sum of all elements in the list
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/**
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* Returns the sum of all elements in the given iterable collection of integers.
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*
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* @param nums the iterable collection of integers to sum
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* @return the sum of all integers in the collection
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*/
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public static int getSum(Iterable<Integer> nums){
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//Setup the variables
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int sum = 0;
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@@ -43,6 +60,12 @@ public class ArrayAlgorithms{
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//Return the sum of all elements
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return sum;
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}
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/**
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* Returns the sum of all elements in the given iterable of longs.
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*
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* @param nums the iterable collection of longs to sum
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* @return the sum of all longs in the collection
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*/
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public static long getLongSum(Iterable<Long> nums){
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//Setup the variables
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long sum = 0;
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@@ -55,6 +78,12 @@ public class ArrayAlgorithms{
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//Return the sum of all elements
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return sum;
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}
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/**
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* Returns the sum of all elements in the given iterable collection of {@code BigInteger} objects.
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*
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* @param nums the iterable collection of {@code BigInteger} objects to sum
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* @return the sum of all {@code BigInteger} objects in the collection
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*/
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public static BigInteger getBigSum(Iterable<BigInteger> nums){
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//Setup the variables
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BigInteger sum = BigInteger.ZERO;
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@@ -67,7 +96,15 @@ public class ArrayAlgorithms{
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//Return the sum of all elements
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return sum;
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}
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//This function returns the product of all elements in the list
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//?This function returns the product of all elements in the list
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/**
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* Returns the product of all elements in the given iterable collection of integers.
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* If the iterable is empty, it returns 0.
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*
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* @param nums the iterable collection of integers to multiply
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* @return the product of all integers in the collection, or 0 if the collection is empty
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*/
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public static int getProd(Iterable<Integer> nums){
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//If a blank list was passed tot he fuction return 0 as the product
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if(!nums.iterator().hasNext()){
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@@ -85,6 +122,13 @@ public class ArrayAlgorithms{
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//Return the product of all elements
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return product;
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}
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/**
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* Returns the product of all elements in the given iterable collection of longs.
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* If the iterable is empty, it returns 0.
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*
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* @param nums the iterable collection of longs to multiply
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* @return the product of all longs in the collection, or 0 if the collection is empty
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*/
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public static long getLongProd(Iterable<Long> nums){
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//If a blank list was passed tot he fuction return 0 as the product
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if(!nums.iterator().hasNext()){
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@@ -102,6 +146,13 @@ public class ArrayAlgorithms{
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//Return the product of all elements
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return product;
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}
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/**
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* Returns the product of all elements in the given iterable collection of {@code BigInteger} objects.
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* If the collection is empty, it returns 0.
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*
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* @param nums the iterable collection of {@code BigInteger} objects to multiply
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* @return the product of all {@code BigInteger} objects in the collection, or 0 if the collection is empty
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*/
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public static BigInteger getBigProd(Iterable<BigInteger> nums){
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//If a blank list was passed tot he fuction return 0 as the product
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if(!nums.iterator().hasNext()){
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@@ -119,7 +170,16 @@ public class ArrayAlgorithms{
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//Return the product of all elements
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return product;
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}
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//Print a list
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//?Print a list
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/**
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* Returns a string representation of the given iterable collection, with elements separated by commas
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* and enclosed in square brackets.
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*
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* @param list the iterable collection to print
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* @param <T> the type of elements in the collection
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* @return a string representation of the collection
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*/
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public static <T> String printList(Iterable<T> list){
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StringJoiner returnString = new StringJoiner(", ", "[", "]");
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for(T obj : list){
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@@ -127,7 +187,14 @@ public class ArrayAlgorithms{
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}
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return returnString.toString();
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}
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//Convert lists
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//?Convert lists
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/**
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* Converts a list of {@code Long} objects to a list of {@code Integer} objects.
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*
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* @param originalList the list of {@code Long} objects to convert
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* @return a list of {@code Integer} objects
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*/
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public static List<Integer> longToInt(List<Long> originalList){
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ArrayList<Integer> newList = new ArrayList<>(originalList.size());
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for(Long num : originalList){
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