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  1. class Ideone {
  2.     private static int popcount(int i) {
  3.         return Integer.bitCount(i);
  4.     }
  5.     public static void main(String[] args) {
  6.         System.out.println(popcount('a'));
  7.         System.out.println(popcount(127));
  8.         System.out.println(popcount(255));
  9.         System.out.println(Integer.MAX_VALUE);
  10.         System.out.println(popcount(Integer.MAX_VALUE));
  11.     }
  12. }
  13.  
Success #stdin #stdout 0.07s 52568KB
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3
7
8
2147483647
31
https://ideone.com/JQN7Ab
language:
Java (HotSpot 12)
created:
138 days ago
visibility:
secret

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