implemented making of random number files in AlgorithmTester, started sorting code
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@@ -12,15 +12,14 @@ public class AlgorithmTester{
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final static Scanner sc = new Scanner(System.in);
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static int input;
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static boolean quit = false;
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public static void main(String[] args) {
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System.out.println("SORTING ALGORITHM TESTER\n");
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boolean quit = false;
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while(!quit){
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System.out.println("Please select an option:");
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System.out.println("1) Make a file of random numbers");
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System.out.println("2) Sort a file of random numbers");
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System.out.println("0) Exit")
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try{
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input = sc.nextInt();
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//Using the new switch syntax introduced in JDK 13
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@@ -28,9 +27,26 @@ public class AlgorithmTester{
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switch(input){
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case 1 -> makeFile();
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case 2 -> sortFile();
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case 3 -> quit=true;
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case 0 -> quit=true;
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default -> System.out.println("Invalid input");
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}
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/*
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non-lambda expresstion version looks like this
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switch(input){
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case 1:
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makeFile();
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break;
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case 2:
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sortFiler();
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break;
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case 0:
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quit=true;
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break;
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default:
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System.out.println("Invalid input");
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break;
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}
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*/
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} catch(InputMismatchException ex){
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System.out.println("Invalid input");
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}
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@@ -38,4 +54,72 @@ public class AlgorithmTester{
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sc.close();
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}
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private static void makeFile(){
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String filename;
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int count;
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int min;
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int max;
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try{
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System.out.print("Please enter a file name: ");
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filename = sc.next();
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System.out.println("How many random numbers?");
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count = sc.nextInt();
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System.out.println("Minimum value?");
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min = sc.nextInt();
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System.out.println("Maximum value?");
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max = sc.nextInt();
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var randomMaker = new RandomNumberFileMaker(filename, count, min, max);
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randomMaker.writeFile();
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} catch(InputMismatchException ex){
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System.out.println("Invalid input");
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}
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}
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private static void sortFile(){
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String filename;
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int input;
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boolean bubble, selection, insertion, quick, counting, radix, merge, ready;
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System.out.print("Please enter file name: ");
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filename = sc.nextLine();
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while(!ready){
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try{
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System.out.println("Enter the number of the algorithms you wish to use.")
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System.out.println("Enter 0 to start sorting.");
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if(bubble){
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System.out.print("*");
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}
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System.out.println("1) bubble sort");
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if(selection){
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System.out.print("*");
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}
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System.out.println("2) selection sort");
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if(insertion){
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System.out.print("*");
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}
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System.out.println("3) insertion sort");
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if(counting){
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System.out.print("*");
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}
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System.out.println("4) counting sort");
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if(quick){
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System.out.print("*");
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}
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System.out.println("5) quick sort");
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input = sc.nextInt();
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switch(input){
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case 1 -> bubble=!bubble;
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case 2 -> selection=!selection;
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case 3 -> insertion=!insertion;
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case 4 -> counting=!counting;
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case 5 -> quick=!quick;
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case 0 -> ready=true;
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default -> System.out.println("Invalid input");
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}
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} catch(InputMismatchException ex){
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System.out.println("Invalid input");
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}
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}
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}
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}
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