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  1. class Dvach {
  2.   static int reverse(int num) {
  3.     if (num > -10 && num < 10) {
  4.       return num;
  5.     }
  6.  
  7.     String signed = String.valueOf(num % 10);
  8.     num = Math.abs(num) / 10;
  9.  
  10.     return Integer.parseInt(signed + (reverse(num)));
  11.   }
  12.  
  13.   public static void main(String[] args) {
  14.     int[] testValues = {0, 1, -1, 21, 25659, -25659};
  15.     for (int num: testValues) {
  16.       System.out.println(reverse(num));
  17.     }
  18.   }    
  19. }
Success #stdin #stdout 0.04s 4386816KB
comments (?)
stdin 
Standard input is empty
stdout 
0
1
-1
12
95652
-95652
https://ideone.com/S4nJvJ
language:
Java (HotSpot 12)
created:
7 years ago
visibility:
public

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