Java BitSet and() Method

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Description

The Java BitSet and(BitSet set) method performs a logical AND of this target bit set with the argument bit set. This bit set is modified so that each bit in it has the value true if and only if it both initially had the value true and the corresponding bit in the bit set argument also had the value true.

Declaration

Following is the declaration for java.util.BitSet.and() method

public void and(BitSet set)

Parameters

set − a bit set

Return Value

This method does not return a value.

Exception

NA

Example 1

The following example shows the usage of Java BitSet and() method. We're creating two BitSets. We're setting true values at given indexes to the BitSet objects using set() method calls per index and using and() method we're performing and opearation and print the updated bitset.

package com.tutorialspoint;
import java.util.BitSet;
public class BitSetDemo {
   public static void main(String[] args) {

      // create 2 bitsets
      BitSet bitset1 = new BitSet();
      BitSet bitset2 = new BitSet();

      // assign values to bitset1
      bitset1.set(0, 6, true);

      // assign values to bitset2
      bitset2.set(2);
      bitset2.set(4);
      bitset2.set(6);
      bitset2.set(8);
      bitset2.set(10);

      // print the sets
      System.out.println("Bitset1:" + bitset1);
      System.out.println("Bitset2:" + bitset2);

      // perform and operation between two bitsets
      bitset1.and(bitset2);

      // print the new bitset1
      System.out.println(bitset1);
   }
}

Let us compile and run the above program, this will produce the following result −

Bitset1:{0, 1, 2, 3, 4, 5}
Bitset2:{2, 4, 6, 8, 10}
{2, 4}

Example 2

The following example shows the usage of Java BitSet and() method. We're creating two BitSets using byte[] and using and() method we're performing and opearation and print the updated bitset.

package com.tutorialspoint;
import java.util.BitSet;
public class BitSetDemo {
   public static void main(String[] args) {

      // create 2 bitsets
      BitSet bitset1 = BitSet.valueOf(new byte[] { 0, 1, 2, 3, 4, 5 });
      BitSet bitset2 = BitSet.valueOf(new byte[] { 2, 4, 6, 8, 10 });

      // print the sets
      System.out.println("Bitset1:" + bitset1);
      System.out.println("Bitset2:" + bitset2);

      // perform and operation between two bitsets
      bitset1.and(bitset2);

      // print the new bitset1
      System.out.println(bitset1);
   }
}

Let us compile and run the above program, this will produce the following result −

Bitset1:{8, 17, 24, 25, 34, 40, 42}
Bitset2:{1, 10, 17, 18, 27, 33, 35}
{17}

Example 3

The following example shows the usage of Java BitSet and() method. We're creating two BitSets using long[] and using and() method we're performing and opearation and print the updated bitset.

package com.tutorialspoint;
import java.util.BitSet;
public class BitSetDemo {
   public static void main(String[] args) {

      // create 2 bitsets
      BitSet bitset1 = BitSet.valueOf(new long[] { 0, 1, 2, 3, 4, 5 });
      BitSet bitset2 = BitSet.valueOf(new long[] { 2, 4, 6, 8, 10 });

      // print the sets
      System.out.println("Bitset1:" + bitset1);
      System.out.println("Bitset2:" + bitset2);

      // perform and operation between two bitsets
      bitset1.and(bitset2);

      // print the new bitset1
      System.out.println(bitset1);
   }
}

Let us compile and run the above program, this will produce the following result −

Bitset1:{64, 129, 192, 193, 258, 320, 322}
Bitset2:{1, 66, 129, 130, 195, 257, 259}
{129}