import java.util.BitSet;

public class BitSetDemo {

  public static void main(String args[]) {

     BitSet bits1 = new BitSet(16);

     BitSet bits2 = new BitSet(16);

     // set some bits

     for(int i=0; i<16; i++) {

        if((i%2) == 0) bits1.set(i);

        if((i%5) != 0) bits2.set(i);

     }

     System.out.println("Initial pattern in bits1: ");

     System.out.println(bits1);

     System.out.println("\nInitial pattern in bits2: ");

     System.out.println(bits2);

     // AND bits

     bits2.and(bits1);

     System.out.println("\nbits2 AND bits1: ");

     System.out.println(bits2);

     // OR bits

     bits2.or(bits1);

     System.out.println("\nbits2 OR bits1: ");

     System.out.println(bits2);

     // XOR bits

     bits2.xor(bits1);

     System.out.println("\nbits2 XOR bits1: ");

     System.out.println(bits2);

  }

}