Java program to remove a specified element from EnumSet collection

Given an EnumSet collection, we have to remove a specified element from it.
Submitted by Nidhi, on May 29, 2022

Problem Solution:

In this program, we will create an Enum for COLORS constants. Then we will create an EnumSet collection and add elements to it. After that, we will remove a specified element using the remove() method.

Program/Source Code:

The source code to remove a specified element from the EnumSet collection is given below. The given program is compiled and executed successfully.

// Java program to remove a specified element 
// from the EnumSet collection

import java.util.*;

// Enum for color constants
enum COLORS {
  RED,
  GREEN,
  BLUE,
  BLACK,
  WHITE
};

public class Main {
  public static void main(String[] args) {
    EnumSet < COLORS > enumSet = EnumSet.noneOf(COLORS.class);

    enumSet.add(COLORS.RED);
    enumSet.add(COLORS.GREEN);
    enumSet.add(COLORS.BLUE);

    System.out.println("Elements of enumSet before removing element: " + enumSet);

    enumSet.remove(COLORS.GREEN);

    System.out.println("Elements of enumSet after removing element: " + enumSet);
  }
}

Output:

Elements of enumSet before removing element: [RED, GREEN, BLUE]
Elements of enumSet after removing element: [RED, BLUE]

Explanation:

The Main class contains a main() method. The main() method is the entry point for the program. And, created an EnumSet collection and add elements to it. Then we removed a specified item from created EnumSet collection and printed the updated EnumSet Collection.