Home » Java programming language

Java LinkedHashSet clear() method with Example

LinkedHashSet Class clear() method: Here, we are going to learn about the clear() method of LinkedHashSet Class with its syntax and example.
Submitted by Preeti Jain, on March 24, 2020

LinkedHashSet Class clear() method

• clear() method is available in java.util package.
• clear() method is used to clear all of the existing objects in this LinkedHashSet.
• clear() method is a non-static method, it is accessible with the class object only and if we try to access the method with the class name then we will get an error.
• clear() method does not throw an exception at the time of clearing elements.

Syntax:

    public void clear();

Parameter(s):

• It does not accept any parameter.

Return value:

The return type of the method is void, it returns nothing.

Example:

// Java program to demonstrate the example 
// of void clear()  method of  LinkedHashSet 

import java.util.*;

public class ClearOfLinkedHashSet {
 public static void main(String[] args) {
  // Instantiates a LinkedHashSet object
  HashSet < String > hs = new LinkedHashSet < String > ();

  // By using add() method is to add
  // the given object of this
  // LinkedHashSet 
  hs.add("C");
  hs.add("C++");
  hs.add("JAVA");
  hs.add("PHP");
  hs.add("SFDC");

  // Display LinkedHashSet
  System.out.println("LinkedHashSet :" + hs);

  // By using clear() method is to
  // remove all of the elements exists
  // in this LinkedHashSet
  hs.clear();

  //Display Modified LinkedHashSet
  System.out.println("hs.clear() :" + hs);
 }
}

Output

LinkedHashSet :[C, C++, JAVA, PHP, SFDC]
hs.clear() :[]