Java.util.BitSet.clear() Method

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Description

The java.util.BitSet.clear(int fromIndex,int toIndex) method sets the bits from the specified fromIndex (inclusive) to the specified toIndex (exclusive) to false.

Declaration

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

public void clear(int fromIndex,int toIndex)

Parameters

  • fromIndex -- index of the first bit to be cleared

  • toIndex -- index of the last bit to be cleared

Return Value

This method does not return a value.

Exception

  • IndexOutOfBoundsException -- if fromIndex is negative, or toIndex is negative, or fromIndex is larger than toIndex.

Example

The following example shows the usage of java.util.BitSet.clear() method.

package com.tutorialspoint;

import java.util.*;

public class BitSetDemo {

   public static void main(String[] args) {

      // create 2 bitsets
      BitSet bitset1 = new BitSet(8);
      BitSet bitset2 = new BitSet(8);

      // assign values to bitset1
      bitset1.set(0);
      bitset1.set(1);
      bitset1.set(2);
      bitset1.set(3);
      bitset1.set(4);
      bitset1.set(5);

      // 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);

      // clear from index 2 to index 4 in bitset1
      bitset1.clear(1, 4);

      // clear index 2 to index 8 in bitset2
      bitset2.clear(2, 8);

      // print new bitsets
      System.out.println("" + bitset1);
      System.out.println("" + bitset2);

   }
}

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}
{0, 4, 5}
{8, 10}



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