//package de.edu.hsfulda.pmut.debugging; import java.io.InputStream; import java.io.PrintStream; import java.util.Scanner; public class Uebung2 { private InputStream in; private PrintStream out; private int count = 2; public Uebung2(InputStream in, PrintStream out) { this.in = in; this.out = out; } public static void main(String[] args) { new Uebung2(System.in, System.out).run(); } private void run() { try (Scanner input = new Scanner(in)) { int nextInt = aquireUserInput(input, "enter an integer number: "); boolean isCheckPassed = checkNumber(nextInt); reportResult(String.format("number %d passed check: %b", nextInt, isCheckPassed)); } ; } private void reportResult(String message) { out.print(message); } private boolean checkNumber(int nextInt) { if (count > nextInt) return true; if (nextInt % count == 0) return false; nextInt = nextInt - (nextInt / count); count++; return checkNumber(nextInt); } private int aquireUserInput(Scanner input, String message) { reportResult(message); int nextInt = input.nextInt(); return nextInt; } }