Java CopyOnWriteArrayList clone() Method with Examples

by Online Tutorials Library July 22, 2022

Java CopyOnWriteArrayList clone() Method

The clone() method of Java CopyOnWriteArrayList class returns a shallow copy of this list. In this method, elements themselves are not copied.

Syntax:

Returns:

This method returns a clone of this list.

Example 1

  import java.util.concurrent.CopyOnWriteArrayList;    public class CopyOnWriteArrayListCloneExample1{    public static void main(String[] args) {  //Initializing CopyOnWriteArrayList of Integers  CopyOnWriteArrayList<Integer>numbers = new CopyOnWriteArrayList<>(new Integer[] {1,2,1,4,5,3,3,8});  //Prints the shallow copy of this list.  System.out.println(“Clone List is : ” + numbers.clone());  }  }  

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Output:

Clone List is : [1, 2, 1, 4, 5, 3, 3, 8]

Example 2

  import java.util.concurrent.CopyOnWriteArrayList;    public class CopyOnWriteArrayListCloneExample2{    public static void main(String[] args) {  //Initializing CopyOnWriteArrayList of Integers  CopyOnWriteArrayList<Integer>numbers = new CopyOnWriteArrayList<>(new Integer[] {});  //Prints the shallow copy of this list.  System.out.println(“Clone List is : ” + numbers.clone());  }  }  

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Output:

Clone List is : []

Example 3

  import java.util.concurrent.CopyOnWriteArrayList;    public class CopyOnWriteArrayListCloneExample3{    public static void main(String[] args) {  //Initializing CopyOnWriteArrayList of Strings  CopyOnWriteArrayList<String>listOfNames = new CopyOnWriteArrayList<>(new String[] {“Tom”,”Harry”,”John”,”John”,”John”,”Jerry”});  //Prints the shallow copy of this list.  System.out.println(“Clone List is : ” + listOfNames.clone());  }  }  

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Output:

Clone List is : [Tom, Harry, John, John, John, Jerry]

Example 4

  import java.util.concurrent.CopyOnWriteArrayList;    public class CopyOnWriteArrayListCloneExample4{    public static void main(String[] args) {  //Initializing CopyOnWriteArrayList of Strings  CopyOnWriteArrayList<String>listOfNames = new CopyOnWriteArrayList<>(new String[] {});  //Prints the shallow copy of this list.  System.out.println(“Clone List is : ” + listOfNames.clone());  }  }  

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Output:

Clone List is : []

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Java CopyOnWriteArrayList clone() Method with Examples

Java CopyOnWriteArrayList clone() Method

Syntax:

Returns:

Example 1

Example 2

Example 3

Example 4

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