Java BitSet.cardinality()

public int cardinality()

import java.util.*;
/*from w ww  .  ja v a 2s  .c  o  m*/
public class Main {

   public static void main(String[] args) {

      
      BitSet bitset1 = new BitSet(8);
      BitSet bitset2 = new BitSet(8);

      // assign values to bitset1
      bitset1.set(0);
      bitset1.set(1);
      bitset1.set(2);

      // assign values to bitset2
      bitset2.set(2);
      bitset2.set(4);
    
    // print the sets
      System.out.println("Bitset1:" + bitset1);
      System.out.println("Bitset2:" + bitset2);

      // print cardinality for bitset1
      System.out.println(bitset1.cardinality());

      // print cardinality for bitset2
      System.out.println(bitset2.cardinality());

   }
}