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BitSet stream() Method in Java with Examples
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BitSet size() Method in Java with Examples

Last Updated : 27 Dec, 2018
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The size() Method of BitSet class in Java is used to know the size of this BitSet. This size is equal to the number of bits, each element has occupied in the BitSet. The maximum element in the set is the size - the first element Syntax: 
BitSet.hashCode()
Parameters: The method does not accept any parameters. Return Value: The method returns the number of bits present in the BitSet. Below programs are used to illustrate the working of BitSet.size() Method: Program 1: Java 
// Java code to illustrate size() import java.util.*;  public class BitSet_Demo {     public static void main(String args[])     {         // Creating an empty BitSet         BitSet init_bitset = new BitSet();          // Use set() method to add elements into the Set         init_bitset.set(40);         init_bitset.set(25);         init_bitset.set(31);         init_bitset.set(100);         init_bitset.set(53);          // Displaying the BitSet         System.out.println("BitSet: " + init_bitset);          // Displaying the size         System.out.println("The size is: "                            + init_bitset.size());     } }
Output: 
  BitSet: {25, 31, 40, 53, 100}  The size is: 128
Program 2: Java 
// Java code to illustrate size() import java.util.*;  public class BitSet_Demo {     public static void main(String args[])     {         // Creating an empty BitSet         BitSet init_bitset = new BitSet();          // Displaying the BitSet         System.out.println("BitSet: " + init_bitset);          // Displaying the hashcode         System.out.println("The s iizes: "                            + init_bitset.size());     } }
Output: 
  BitSet: {}  The size is: 64
Program 3: Java 
// Java code to illustrate size() import java.util.*;  public class BitSet_Demo {     public static void main(String args[])     {         // Creating an empty BitSet         BitSet init_bitset = new BitSet();          // Use set() method to add elements into the Set         init_bitset.set(400);          // Displaying the BitSet         System.out.println("BitSet: " + init_bitset);          // Displaying the hashcode         System.out.println("The sizeis: " + init_bitset.size());     } }
Output: 
  BitSet: {400}  The size is: 448

Next Article
BitSet stream() Method in Java with Examples
author
chinmoy lenka
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Article Tags :
  • Misc
  • Java
  • Java - util package
  • Java-Functions
  • Java-BitSet
Practice Tags :
  • Java
  • Misc

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