Last Updated : 24 Jul, 2020
The Java.util.EnumMap.clone() method in Java is used to copy the mapped values of one map to another. It basically creates a shallow copy of this map.
Syntax:Enum_map_2 = Enum_map_1.clone()Parameters:
The method does not accept any argument.
Return Value:The method returns a shallow copy of a EnumMap. Below programs illustrate the Java.util.EnumMap.clone() method
Program 1: Java
// Java program to demonstrate clone() method
import java.util.*;
// An enum of fruits price is created
public enum Price_of_Fruits {
Orange,
Apple,
Banana,
Pomegranate,
Guava
};
class Enum_map {
public static void main(String[] args)
{
EnumMap<Price_of_Fruits, Integer> mp1 = new EnumMap<Price_of_Fruits,
Integer>(Price_of_Fruits.class);
EnumMap<Price_of_Fruits, Integer> mp2 = new EnumMap<Price_of_Fruits,
Integer>(Price_of_Fruits.class);
// Values are associated in mp1
mp1.put(Price_of_Fruits.Orange, 30);
mp1.put(Price_of_Fruits.Apple, 60);
mp1.put(Price_of_Fruits.Banana, 40);
mp1.put(Price_of_Fruits.Pomegranate, 120);
mp1.put(Price_of_Fruits.Guava, 20);
// Price of fruits in mp1
System.out.println("Price of fruits in 1st map " + mp1);
// Copying the values of mp1 to mp2
mp2 = mp1.clone();
// Price of fruits in mp2
System.out.println("Price of fruits in 2nd map " + mp2);
}
}
Output:
Price of fruits in 1st map {Orange=30, Apple=60, Banana=40, Pomegranate=120, Guava=20}
Price of fruits in 2nd map {Orange=30, Apple=60, Banana=40, Pomegranate=120, Guava=20}
Program 2: Java
// Java program to demonstrate clone() method
import java.util.*;
// An enum of gfg ranking is created
public enum gfg_ranking {
Global_2018,
India_2018
};
class Enum_map {
public static void main(String[] args)
{
EnumMap<gfg_ranking, Integer> mp1 = new EnumMap<gfg_ranking,
Integer>(gfg_ranking.class);
EnumMap<gfg_ranking, Integer> mp2 = new EnumMap<gfg_ranking,
Integer>(gfg_ranking.class);
// Values are associated in mp1
mp1.put(gfg_ranking.Global_2018, 800);
mp1.put(gfg_ranking.India_2018, 72);
// Price of fruits in mp1
System.out.println("GeeksforGeeks ranking in first map " + mp1);
// Copying the values of mp1 to mp2
mp2 = mp1.clone();
// Price of fruits in mp2
System.out.println("GeeksforGeeks ranking in second map " + mp2);
}
}
Output:
GeeksforGeeks ranking in first map {Global_2018=800, India_2018=72}
GeeksforGeeks ranking in second map {Global_2018=800, India_2018=72}
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