LinkedHashSet clear() method in Java with Examples

The clear() method of java.util.LinkedHashSet class is used to remove all of the elements from this set. The set will be empty after this call returns.

Syntax:

public void clear()

Return Value: This method does not return anything.

Below are the examples to illustrate the clear() method.

Example 1:



filter_none

edit
close

play_arrow

link
brightness_4
code

// Java program to demonstrate
// clear() method
// for Integer value
  
import java.util.*;
  
public class GFG1 {
    public static void main(String[] argv) throws Exception
    {
        try {
  
            // Create the object of LinkedHashSet<Integer>
            LinkedHashSet<Integer>
                linkset = new LinkedHashSet<Integer>();
  
            // populate hash set
            linkset.add(10);
            linkset.add(20);
            linkset.add(30);
  
            // print the LinkedHashSet
            System.out.println("LinkedHashSet: "
                               + linkset);
  
            // clear set values
            // using clear() method
            linkset.clear();
  
            // print the LinkedHashSet
            System.out.println("LinkedHashSet after "
                               + "use of clear() method: "
                               + linkset);
        }
  
        catch (NullPointerException e) {
  
            System.out.println("Exception thrown : " + e);
        }
    }
}

chevron_right


Output:

LinkedHashSet: [10, 20, 30]
LinkedHashSet after use of clear() method: []

Example 2:

filter_none

edit
close

play_arrow

link
brightness_4
code

// Java program to demonstrate
// clear() method
// for String value
  
import java.util.*;
  
public class GFG1 {
    public static void main(String[] argv) throws Exception
    {
        try {
  
            // Create the object of LinkedHashSet<Integer>
            LinkedHashSet<String>
                linkset = new LinkedHashSet<String>();
  
            // populate hash set
            linkset.add("A");
            linkset.add("B");
            linkset.add("C");
  
            // print the LinkedHashSet
            System.out.println("LinkedHashSet: "
                               + linkset);
  
            // clear set values
            // using clear() method
            linkset.clear();
  
            // print the LinkedHashSet
            System.out.println("LinkedHashSet after "
                               + "use of clear() method: "
                               + linkset);
        }
  
        catch (NullPointerException e) {
  
            System.out.println("Exception thrown : " + e);
        }
    }
}

chevron_right


Output:

LinkedHashSet: [A, B, C]
LinkedHashSet after use of clear() method: []


My Personal Notes arrow_drop_up

Check out this Author's contributed articles.

If you like GeeksforGeeks and would like to contribute, you can also write an article using contribute.geeksforgeeks.org or mail your article to contribute@geeksforgeeks.org. See your article appearing on the GeeksforGeeks main page and help other Geeks.

Please Improve this article if you find anything incorrect by clicking on the "Improve Article" button below.