Set remove() method in Java with Examples

The java.util.Set.remove(Object O) method is used to remove a particular element from a Set.

Syntax:

boolean remove(Object O)

Parameters: The parameter O is of the type of element maintained by this Set and specifies the element to be removed from the Set.



Return Value: This method returns True if the specified element is present in the Set otherwise it returns False.

Below program illustrate the java.util.Set.remove(Object O) method:

filter_none

edit
close

play_arrow

link
brightness_4
code

// Java code to illustrate Set.remove() method
  
import java.util.*;
  
public class SetDemo {
    public static void main(String args[])
    {
        // Creating an empty Set
        Set<String> set = new HashSet<String>();
  
        // Use add() method to add elements into the Set
        set.add("Welcome");
        set.add("To");
        set.add("Geeks");
        set.add("4");
        set.add("Geeks");
  
        // Displaying the Set
        System.out.println("Set: " + set);
  
        // Removing elements using remove() method
        set.remove("Geeks");
        set.remove("4");
        set.remove("Welcome");
  
        // Displaying the Set after removal
        System.out.println("Set after removing elements: "
                           + set);
    }
}

chevron_right


Output:

Set: [4, Geeks, Welcome, To]
Set after removing elements: [To]

Reference: https://docs.oracle.com/javase/7/docs/api/java/util/Set.html#remove(java.lang.Object)



My Personal Notes arrow_drop_up

The function of education is to teach one to think intensively and to think critically

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.