- Java.util Package Classes
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- Java.util - ArrayDeque
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- Java.util - BitSet
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- Java.util - Currency
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- Java.util - Dictionary
- Java.util - EnumMap
- Java.util - EnumSet
- Java.util - Formatter
- Java.util - GregorianCalendar
- Java.util - HashMap
- Java.util - HashSet
- Java.util - Hashtable
- Java.util - IdentityHashMap
- Java.util - LinkedHashMap
- Java.util - LinkedHashSet
- Java.util - LinkedList
- Java.util - ListResourceBundle
- Java.util - Locale
- Java.util - Observable
- Java.util - PriorityQueue
- Java.util - Properties
- Java.util - PropertyPermission
- Java.util - PropertyResourceBundle
- Java.util - Random
- Java.util - ResourceBundle
- Java.util - ResourceBundle.Control
- Java.util - Scanner
- Java.util - ServiceLoader
- Java.util - SimpleTimeZone
- Java.util - Stack
- Java.util - StringTokenizer
- Java.util - Timer
- Java.util - TimerTask
- Java.util - TimeZone
- Java.util - TreeMap
- Java.util - TreeSet
- Java.util - UUID
- Java.util - Vector
- Java.util - WeakHashMap
- Java.util Package Extras
- Java.util - Interfaces
- Java.util - Exceptions
- Java.util - Enumerations
- Java.util Useful Resources
- Java.util - Useful Resources
- Java.util - Discussion
Java EnumMap clone() Method
Description
The Java EnumMap clone() method returns a copy of this enum map.
Declaration
Following is the declaration for java.util.EnumMap.clone() method
public EnumMap<K,V> clone()
Parameters
NA
Return Value
This method returns a shallow copy of this enum map.
Exception
NA
Cloning an EnumMap of Enum, Integer Pairs Example
The following example shows the usage of Java EnumMap clone() method to clone the EnumMap instance. We've created a enum Numbers. Then Two EnumMap instance are created of enum Numbers and Integer. Few entries are added and enumMap is printed. Using clone() method, enumMap is cloned and printed.
package com.tutorialspoint; import java.util.EnumMap; public class EnumMapDemo { // create an enum public enum Numbers{ONE, TWO, THREE, FOUR, FIVE}; public static void main(String[] args) { EnumMap<Numbers,Integer> map = new EnumMap<>(Numbers.class); EnumMap<Numbers,Integer> map2 = new EnumMap<>(Numbers.class); // associate values in map map.put(Numbers.ONE, 1); map.put(Numbers.TWO, 2); map.put(Numbers.THREE,3); map.put(Numbers.FOUR, 4); // print the whole map System.out.println(map); // clone the map map2 = map.clone(); // print the clone map as map2 System.out.println(map2); } }
Output
Let us compile and run the above program, this will produce the following result −
{ONE=1, TWO=2, THREE=3, FOUR=4} {ONE=1, TWO=2, THREE=3, FOUR=4}
Cloning an EnumMap of Enum, String Pairs Example
The following example shows the usage of Java EnumMap clone() method to clone the EnumMap instance. We've created a enum Numbers. Then Two EnumMap instance are created of enum Numbers and String. Few entries are added and enumMap is printed. Using clone() method, enumMap is cloned and printed.
package com.tutorialspoint; import java.util.EnumMap; public class EnumMapDemo { // create an enum public enum Numbers{ONE, TWO, THREE, FOUR, FIVE}; public static void main(String[] args) { EnumMap<Numbers,String> map = new EnumMap<>(Numbers.class); EnumMap<Numbers,String> map2 = new EnumMap<>(Numbers.class); // associate values in map map.put(Numbers.ONE, "1"); map.put(Numbers.TWO, "2"); map.put(Numbers.THREE,"3"); map.put(Numbers.FOUR, "4"); // print the whole map System.out.println(map); // clone the map map2 = map.clone(); // print the clone map as map2 System.out.println(map2); } }
Output
Let us compile and run the above program, this will produce the following result −
{ONE=1, TWO=2, THREE=3, FOUR=4} {ONE=1, TWO=2, THREE=3, FOUR=4}
Cloning an EnumMap of Enum, Object Pairs Example
The following example shows the usage of Java EnumMap clone() method to clone the EnumMap instance. We've created a enum Numbers. Then Two EnumMap instance are created of enum Numbers and Student objects. Few entries are added and enumMap is printed. Using clone() method, enumMap is cloned and printed.
package com.tutorialspoint; import java.util.EnumMap; public class EnumMapDemo { // create an enum public enum Numbers{ONE, TWO, THREE, FOUR, FIVE}; public static void main(String[] args) { EnumMap<Numbers,Student> map = new EnumMap<>(Numbers.class); EnumMap<Numbers,Student> map2 = new EnumMap<>(Numbers.class); // associate values in map map.put(Numbers.ONE, new Student(1, "Julie")); map.put(Numbers.TWO, new Student(2, "Robert")); map.put(Numbers.THREE,new Student(3, "Adam")); map.put(Numbers.FOUR, new Student(4, "Jene")); // print the whole map System.out.println(map); // clone the map map2 = map.clone(); // print the clone map as map2 System.out.println(map2); } } class Student { int rollNo; String name; Student(int rollNo, String name){ this.rollNo = rollNo; this.name = name; } @Override public String toString() { return "[ " + this.rollNo + ", " + this.name + " ]"; } }
Output
Let us compile and run the above program, this will produce the following result −
{ONE=[ 1, Julie ], TWO=[ 2, Robert ], THREE=[ 3, Adam ], FOUR=[ 4, Jene ]} {ONE=[ 1, Julie ], TWO=[ 2, Robert ], THREE=[ 3, Adam ], FOUR=[ 4, Jene ]}
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