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Showing content from https://www.tutorialspoint.com/java/util/bitset_set.htm below:

Java BitSet set(int index) Method

The Java BitSet set(int bitIndex) method sets the bit at the specified index to true.

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

public void set(int bitIndex)

bitIndex − a bit index.

This method does not return a value.

IndexOutOfBoundsException − if the specified index is negative.

The Java BitSet set(int fromIndex,int toIndex) method sets the bits from the specified fromIndex (inclusive) to the specified toIndex (exclusive) to true.

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

public void set(int fromIndex,int toIndex)

• fromIndex − index of the first bit to be set.

• toIndex − index after the last bit to be set.

This method does not return a value.

IndexOutOfBoundsException − if fromIndex is negative, or toIndex is negative, or fromIndex is larger than toIndex.

The java.util.BitSet.set(int bitIndex,boolean value) method sets the bit at the specified index to the specified value.

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

public void set(int bitIndex,boolean value)

• bitIndex − a bit index.

• value − a boolean value to set.

This method does not return a value.

IndexOutOfBoundsException − if the specified index is negative.

The Java BitSet set(int fromIndex,int toIndex,boolean value) method sets the bits from the specified fromIndex (inclusive) to the specified toIndex (exclusive) to the specified value.

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

public void set(int fromIndex,int toIndex,boolean value)

• fromIndex − index of the first bit to be set.

• toIndex − index after the last bit to be set.

• value − value to set the selected bits to

This method does not return a value.

IndexOutOfBoundsException − if fromIndex is negative, or toIndex is negative, or fromIndex is larger than toIndex.

The following example shows the usage of Java BitSet set() methods. We're creating two BitSets. We're setting true values in a BitSet object using set() method call and then use other variants to set values.

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 true values to bitset1 using set(fromIndex, toIndex)
      bitset1.set(0, 6);
	  
	  // assign false values to bitset1 using set(bitIndex, value)
      bitset1.set(2, false);
	  
	  // assign true value to bitset2 using set(index)
	  bitset2.set(1);
	  
	  // assign value to bitset2 using set(fromIndex, toIndex, value)
	  bitset2.set(2,5,true);
	  
      // print the sets
      System.out.println("Bitset1:" + bitset1);
      System.out.println("Bitset2:" + bitset2);
   }
}

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

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

The following example shows the usage of Java BitSet set() methods. We're creating two BitSets using byte[] and using various set() methods, we're setting values in the bitsets.

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[] { 6, 7, 8, 9 });

      // assign true values to bitset1 using set(fromIndex, toIndex)
      bitset1.set(9, 10);
	  
	  // assign false values to bitset1 using set(bitIndex, value)
      bitset1.set(24, false);
	  
	  // assign true value to bitset2 using set(index)
	  bitset2.set(9);
	  
	  // assign value to bitset2 using set(fromIndex, toIndex, value)
	  bitset2.set(20,24,true);
	  
      // print the sets
      System.out.println("Bitset1:" + bitset1);
      System.out.println("Bitset2:" + bitset2);
   }
}

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

Bitset1:{8, 9, 17, 25, 34, 40, 42}
Bitset2:{1, 2, 8, 9, 10, 19, 20, 21, 22, 23, 24, 27}

The following example shows the usage of Java BitSet set() methods. We're creating two BitSets using long[] and using various set() methods, we're setting values in the bitsets.

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[] { 6, 7, 8, 9 });

      // assign true values to bitset1 using set(fromIndex, toIndex)
      bitset1.set(9, 10);
	  
	  // assign false values to bitset1 using set(bitIndex, value)
      bitset1.set(24, false);
	  
	  // assign true value to bitset2 using set(index)
	  bitset2.set(9);
	  
	  // assign value to bitset2 using set(fromIndex, toIndex, value)
	  bitset2.set(20,24,true);
	  
      // print the sets
      System.out.println("Bitset1:" + bitset1);
      System.out.println("Bitset2:" + bitset2);
   }
}

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

Bitset1:{9, 64, 129, 192, 193, 258, 320, 322}
Bitset2:{1, 2, 9, 20, 21, 22, 23, 64, 65, 66, 131, 192, 195}

java_util_bitset.htm

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