Java Collection Tutorial - Java BitSet.isEmpty()

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Syntax

BitSet.isEmpty() has the following syntax.

public boolean isEmpty()

Example

In the following code shows how to use BitSet.isEmpty() method.

/*from  www.j  av a 2s.  co  m*/
import java.util.*;

public class Main {

   public static void main(String[] args) {

      
      BitSet bitset1 = new BitSet(8);
      BitSet bitset2 = new BitSet(8);

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

      // assign values to bitset2
      bitset2.set(2);
      bitset2.set(4);

      // print the sets
      System.out.println("Bitset1:" + bitset1);
      System.out.println("Bitset2:" + bitset2);

      // check if bitset1 and 2 are empty
      System.out.println(bitset1.isEmpty());
      System.out.println(bitset2.isEmpty());

      // create a new empty bitset
      BitSet bitset3 = new BitSet(8);

      // check if bitset3 is empty
      System.out.println(bitset3.isEmpty());

   }
}

The code above generates the following result.

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