Java BitSet or() method

The or(BitSet set) method of Java BitSet class is used to perform a logical OR operation of this bit set with the specified set argument. The value of bit set is modified so that each bit in it has true if and only if the bit set of either initially or the corresponding bit argument has the true value.

Syntax:

Parameter:

DataType	Parameter	Description
BitSet	set	It is a bit set.

Returns:

Exception:

NullPointerException - if null parameter will pass in the method.

Compatibility Version:

Java 1.0 and above

Example 1

import java.util.BitSet;

public class BitSetOrExample1 {
	public static void main(String[] args) {
	      // create 2 bitsets
	      BitSet bitset1 = new BitSet();
	      BitSet bitset2 = new BitSet();

	      // assign values to bitset1
	      bitset1.set(0);
	      bitset1.set(1);
	      bitset1.set(4);
	      bitset1.set(6);
	      bitset1.set(7);

	      // 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 or operation between two bitsets
	      bitset1.or(bitset2);
	      // print the new bitset1
	      System.out.println("or operation between bitsets: " + bitset1);
	}
}

Output:

bitset1: {0, 1, 4, 6, 7}
bitset2: {2, 4, 6, 8, 10}
or operation between bitsets: {0, 1, 2, 4, 6, 7, 8, 10}

Example 2

The BitSet class converts the character into a byte value.

import java.util.BitSet;

public class BitSetOrExample2 {
	public static void main(String[] args) {
		// create 2 bitsets
	      BitSet bitset1 = new BitSet();
	      BitSet bitset2 = new BitSet();

	      // assign values to bitset1
	      bitset1.set('a');
	      bitset1.set('b');
	      bitset1.set('c');
	      bitset1.set(4);
	      bitset1.set(5);

	      // assign values to bitset2
	      bitset2.set(97);
	      bitset2.set(98);
	      bitset2.set(3);
	      bitset2.set(4);
	      bitset2.set(6);

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

	      // perform or operation between two bitsets
	      bitset1.or(bitset2);
	      // print the new bitset1
	      System.out.println("or operation between bitsets: " + bitset1);
	}
}

Output:

bitset1: {4, 5, 97, 98, 99}
bitset2: {3, 4, 6, 97, 98}
or operation between bitsets: {3, 4, 5, 6, 97, 98, 99}

Example 3

This method throws a NullPointerException if we pass a null parameter.

import java.util.BitSet;

public class BitSetOrExample3 {
	public static void main(String[] args) {
		  BitSet bitset = new BitSet();

		  bitset.set(0);
		  bitset.set(2);
		  bitset.set(3);
		  bitset.set(5);
		  bitset.set(7);
		  bitset.or(null);
		  //throw an exception if null parameter is pass
		  System.out.println("or operation between bitset and null: "+bitset);
	}
}

Output:

Exception in thread "main" java.lang.NullPointerException
	at java.util.BitSet.or(Unknown Source)
	at BitSetOrExample3.main(BitSetOrExample3.java:12)

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Java BitSet or() method

Syntax:

Parameter:

Returns:

Exception:

Compatibility Version:

Example 1

Example 2

Example 3

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Java BitSet or() method

Syntax: