Java Utility Library

Java EnumMap - clone() Method

The java.util.EnumMap.clone() method returns a shallow copy of this EnumMap. The values themselves are not cloned.

Syntax

public EnumMap<K,V> clone()

Here, K and V are the type of key and value respectively maintained by the container.

Parameters

No parameter is required.

Return Value

Returns a shallow copy of this EnumMap.

Exception

NA.

Example:

In the example below, the java.util.EnumMap.clone() method returns a shallow copy of the given EnumMap.

import java.util.*;

public class MyClass {
  
  //creating an enum
  public enum weekday{
    MON, TUE, WED, THU, FRI
  }

  public static void main(String[] args) {
    //creating EnumMaps
    EnumMap<weekday,Integer> MyMap1 = 
        new EnumMap<weekday,Integer>(weekday.class);
    EnumMap<weekday,Integer> MyMap2 = 
        new EnumMap<weekday,Integer>(weekday.class);

    //associate values in MyMap1
    MyMap1.put(weekday.MON, 1);
    MyMap1.put(weekday.TUE, 2);
    MyMap1.put(weekday.WED, 3);
    MyMap1.put(weekday.THU, 4);
    MyMap1.put(weekday.FRI, 5);

    //printing MyMap1
    System.out.println("MyMap1 contains: " + MyMap1);

    //create a copy of MyMap1 into MyMap2
    MyMap2 = MyMap1.clone();

    //printing MyMap2
    System.out.println("MyMap2 contains: " + MyMap2);
  }
}

The output of the above code will be:

MyMap1 contains: {MON=1, TUE=2, WED=3, THU=4, FRI=5}
MyMap2 contains: {MON=1, TUE=2, WED=3, THU=4, FRI=5}

❮ Java.util - EnumMap