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Java BitSet andNot() Method with Example

BitSet Class andNot() method: Here, we are going to learn about the andNot() method of BitSet Class with its syntax and example.
Submitted by Preeti Jain, on January 21, 2020

BitSet Class andNot() method

• andNot() method is available in java.util package.
• andNot() method is used to returns all of the bits in this Bitset whose corresponding bit is not set in the given Bitset.
• andNot() method is a non-static method, so it is accessible with the class object and if we try to access the method with the class name then we will get an error.
• andNot() method does not throw an exception at the time of clearing bits in this Bitset whose corresponding bit is presented in the given Bitset.

Syntax:

    public void andNot(BitSet bs);

Parameter(s):

• BitSet bs – represents the Bitset to mask this Bitset.

Return value:

The return type of this method is void, it returns nothing.

Example:

// Java program to demonstrate the example 
// of void andNot(BitSet bs) method of BitSet.

import java.util.*;

public class AndNotOfBitSet {
    public static void main(String[] args) {
        // create an object of two BitSet
        BitSet bs1 = new BitSet(10);
        BitSet bs2 = new BitSet(10);

        // By using set() method is to set
        // the values in BitSet 1 
        bs1.set(10);
        bs1.set(20);
        bs1.set(30);
        bs1.set(40);
        bs1.set(50);

        // By using set() method is to set
        // the values in BitSet 2 
        bs2.set(60);
        bs2.set(70);
        bs2.set(50);
        bs2.set(40);
        bs2.set(30);

        // Display Bitset1 and BitSet2
        System.out.println("bs1 :" + bs1);
        System.out.println("bs2:" + bs2);

        // By using andNot(BitSet) method is to returns
        // all the bits that does not match the bits of given
        // BitSet

        bs1.andNot(bs2);

        // Display BitSet 1
        System.out.println("bs1.andNot(bs2) : " + bs1);
    }
}

Output

bs1 :{10, 20, 30, 40, 50}
bs2:{30, 40, 50, 60, 70}
bs1.andNot(bs2) : {10, 20}