How to Remove All LinkedHashSet Elements in Java

The example aims to remove all elements contained in Java LinkedHashSet or clear LinkedHashSet object by removeAll method.

Source Code

package com.beginner.examples;

import java.util.LinkedHashSet;

public class RemoveAllElementsFromLinkedHashSet {

	public static void main(String[] args) {
		
		//create LinkedHashSet.
		LinkedHashSet linkedHashSet = new LinkedHashSet();
		
		linkedHashSet.add("A");
		linkedHashSet.add("B");
		linkedHashSet.add("C");
		linkedHashSet.add("D");
		
		System.out.println("Before remove,  linkedHashSet contains : " + linkedHashSet);
		
		/*
		 * Use clear method to To remove all elements.
		 */
		linkedHashSet.clear();
		
		System.out.println("After remove, linkedHashSet contains : " + linkedHashSet);
	}

}

Output:

Before remove,  linkedHashSet contains : [A, B, C, D]
After remove, linkedHashSet contains : []

References

Imported packages in Java documentation:

LinkedHashSet