Remove all elements from Java HashSet : HashSet « Collections Data Structure « Java

1. Java
2. Collections Data Structure
3. HashSet

Remove all elements from Java HashSet

      

import java.util.HashSet;

public class Main {
  public static void main(String[] args) {
    HashSet<Integer> hSet = new HashSet<Integer>();

    hSet.add(new Integer("1"));
    hSet.add(new Integer("2"));
    hSet.add(new Integer("3"));

    System.out.println(hSet);

    hSet.clear();

    System.out.println(hSet);

    System.out.println(hSet.isEmpty());

  }

}
/*
[1, 2, 3]
[]
true
*/

   
    
    
    
    
    
  

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