why isnt my code working

Question about the task

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package en.codegym.task.pro.task03.task0305; import java.util.Scanner; /* Three numbers */ public class Solution { public static void main(String[] args) { //write your code here Scanner s = new Scanner(System.in); int n1 = s.nextInt(); int n2 = s.nextInt(); int n3 = s.nextInt(); if (n1 == n2) { if (n1 == n3) { System.out.println(n1 + ""+n2+"" + n3); } else { System.out.println(n1+"" + n2); } } if(n2 == n3){ System.out.println(n2+"" + n3); }else if(n1 == n3){ System.out.println(n1+""+n3); }else { System.out.println(""); } } } what am i doing wrong?

Use the keyboard to enter three integers. Determine whether there is at least one pair of equal numbers among them.
If such a pair exists, display the numbers separated by spaces. If all three numbers are equal, then display all three.

Examples:
a) if we enter the numbers 1 2 2, then the output we get is 2 2

b) if we enter the numbers 2 2 2, then the output we get is 2 2 2

Requirements:

The program should read three number from the keyboard.
The program must contain System.out.println() or System.out.print().
If two numbers are equal, you need to display them on the screen.
If all three numbers are equal, you need to display all three.
If none of the numbers are equal, then display nothing.

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Thomas

Level 41 , Bayreuth, Germany

11 April, 06:33

the code block from lines 25 - 32 will be executed no matter what the result of the code block 18 -24 is. Means if you first block detects 3 equal integers and prints a result, then the second block will start running and detect (surprise) two equal integers and print that result. That is not correct and you should fix it (add else before the if in line 25) The second problem is, that you print an empty line in case of three different inputs. For the compiler that is not an empty line. Thats bytes with the value 13 or 10 or a combination of both. That you also need to fix. Looking at the example provided by codegym I'd say the integers in the result should be separated by a space. Maybe try to correct that as well.