BitSet set(int) in Java

set(int): This method is available in java.util.BitSet class of Java.

Syntax:

void java.util.BitSet.set(int bitIndex)

This method takes one argument of type int as its parameter. This method sets the bit at the specified index to true.

Parameters: One parameter is required for this method.

bitIndex: a bit index.

Throws:

IndexOutOfBoundsException - if the specified index is negative.

Approach 1: When no exception

Java

import java.util.BitSet;

public class BitSetset {
    public static void main(String[] args) {
        BitSet bitSet = new BitSet(100);

        int bitIndex = 2;

        bitSet.set(bitIndex);
        System.out.println(bitSet);
    }
}

Output:

{2}

Approach 2: IndexOutOfBoundsException

Java

import java.util.BitSet;

public class BitSetset {
    public static void main(String[] args) {
        BitSet bitSet = new BitSet(100);

        int bitIndex = -1;

        bitSet.set(bitIndex);
        System.out.println(bitSet);
    }
}

Output:

Exception in thread "main" java.lang.IndexOutOfBoundsException: bitIndex < 0: -1
	at java.base/java.util.BitSet.set(BitSet.java:447)