Write a java program to get the number of elements in a hash set.

numberofElements.java

import java.util.*;  
public class numberofElements {  
public static void main(String[] args) {  
HashSet hashSet = new HashSet();  
hashSet.add("A");  
hashSet.add("B");  
System.out.println("Hashset size is "+hashSet.size());  
hashSet.add("C");  
System.out.println("Hashset size is "+hashSet.size());  
}  
}

Output:

  
  
Hashset size is 2  
Hashset size is 3  

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