User interface up and running

ProblemSelection.ts

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+//ProjectEulerTS/ProblemSelection.ts
+//Matthew Ellison
+// Created: 10-18-20
+//Modified: 10-18-20
+//This class holds all of the functions needed to handle a problem
+//Unless otherwise listed all non-standard includes are my own creation and available from https://bibucket.org/Mattrixwv/typescriptClasses
+/*
+	Copyright (C) 2020  Matthew Ellison
+
+	This program is free software: you can redistribute it and/or modify
+	it under the terms of the GNU Lesser General Public License as published by
+	the Free Software Foundation, either version 3 of the License, or
+	(at your option) any later version.
+
+	This program is distributed in the hope that it will be useful,
+	but WITHOUT ANY WARRANTY; without even the implied warranty of
+	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+	GNU Lesser General Public License for more details.
+
+	You should have received a copy of the GNU Lesser General Public License
+	along with this program.  If not, see <https://www.gnu.org/licenses/>.
+*/
+
+
+const readlineSync = require("readline-sync");
+import { Problem } from "./Problems/Problem";
+import { Problem1 } from "./Problems/Problem1";
+
+
+export class ProblemSelection{
+	//Holds the valid problem numbers
+	public static PROBLEM_NUMBERS = [1];
+
+	//Returns the problem corresponding to the given problem number
+	public static getProblem(problemNumber: number): Problem{
+		let problem: Problem  = null;
+		switch(problemNumber){
+			case 1  : problem = new Problem1(); break;
+		}
+		return problem;
+	}
+	//Print the description of a problem
+	public static printDescription(problemNumber: number): void{
+		//Get the problem
+		let problem: Problem = ProblemSelection.getProblem(problemNumber);
+		//Print the problem's description
+		console.log(problem.getDescription() + "\n\n");
+	}
+	//Solve a problem
+	public static solveProblem(problemNumber: number): void{
+		//Get the problem
+		let problem: Problem = ProblemSelection.getProblem(problemNumber);
+		//Print the problem description
+		console.log("\n\n" + problem.getDescription());
+		//Solve the problem
+		problem.solve();
+		//Print the results
+		console.log(problem.getResult() + "\nIt took " + problem.getTime() + " to solve this problem.\n\n");
+	}
+	//Get a valid problem number from a user
+	public static getProblemNumber(): number{
+		let problemNumber: number = 0;
+		let prob = readlineSync.question("Enter a problem number: ");
+		try{
+			problemNumber = parseInt(prob);
+		}
+		catch(error){
+			problemNumber = -1;
+		}
+		while(!ProblemSelection.PROBLEM_NUMBERS.includes(problemNumber)){
+			console.log("That is an invalid problem number!");
+			problemNumber = ProblemSelection.getProblemNumber();
+		}
+		problemNumber = parseInt(prob);
+		return problemNumber;
+	}
+	//List all valid problem numbers
+	public static listProblems(): void{
+		console.log(ProblemSelection.PROBLEM_NUMBERS[1]);
+		for(let problemNumber: number = 2;problemNumber < ProblemSelection.PROBLEM_NUMBERS.length;++problemNumber){
+			console.log(", " + ProblemSelection.PROBLEM_NUMBERS[problemNumber]);
+		}
+		console.log();
+	}
+}