EnumSet clone() Method in Java (original) (raw)

Last Updated : 02 Jul, 2018

The Java.util.EnumSet.clone() method in Java is used to return a shallow copy of the existing or this set.Syntax:

Enum_Set_2 = Enum_Set_1.clone()

Parameters: The method does not take any parameters.Return Value: The method does not return any value. Below programs illustrate the working of Java.util.EnumSet.clone() method:Program 1:

Java `

// Java program to demonstrate clone() method import java.util.*;

// Creating an enum of GFG type enum GFG { Welcome, To, The, World, of, Geeks } ;

public class Enum_Set_Demo {

public static void main(String[] args)
{

    // Creating an empty EnumSet
    // Getting all elements from GFG
    EnumSet<GFG> e_set = EnumSet.allOf(GFG.class);
    ;

    // Displaying the empty EnumSet
    System.out.println("Initial set: " + e_set);

    // Cloning the set
    EnumSet<GFG> final_set = e_set.clone();

    // Displaying the final set
    System.out.println("The updated set is:" + final_set);
}

}

`

Output:

Initial set: [Welcome, To, The, World, of, Geeks] The updated set is:[Welcome, To, The, World, of, Geeks]

Program 2:

Java `

// Java program to demonstrate clone() method import java.util.*;

// Creating an enum of CARS type enum CARS { RANGE_ROVER, MUSTANG, CAMARO, AUDI, BMW } ;

public class Enum_Set_Demo {

public static void main(String[] args)
{

    // Creating an empty EnumSet
    // Getting all elements from CARS
    EnumSet<CARS> e_set = EnumSet.allOf(CARS.class);
    ;

    // Displaying the empty EnumSet
    System.out.println("Initial set: " + e_set);

    // Cloning the set
    EnumSet<CARS> final_set = e_set.clone();

    // Displaying the final set
    System.out.println("The updated set is:" + final_set);
}

}

`

Output:

Initial set: [RANGE_ROVER, MUSTANG, CAMARO, AUDI, BMW] The updated set is:[RANGE_ROVER, MUSTANG, CAMARO, AUDI, BMW]