Question

How to generate all permutations of 1, 2 and 3 without repetition in Java

Answer 1

public class MyClass {
    public static void main(String args[]) {
        for (int i = 1; i <= 3; i++) {  
            for (int j = 1; j <= 3; j++) {  
                for (int k = 1; k <= 3; k++) {  
                    if (i != j && i != k && j != k)  
                        System.out.format("%d %d %d\n", i, k, j);
                }
            }  
        }  
    }  
}
  
  
  
  
  
/*
run:
      
1 3 2
1 2 3
2 3 1
2 1 3
3 2 1
3 1 2
    
*/

 

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