The Java.util.ArrayList.clone() method is used to create a shallow copy of the mentioned array list. It just creates a copy of the list.
Syntax:
ArrayList.clone()
Parameters: This method does not take any parameters.
Return Value: This function returns a copy of the instance of Linked list.
Below program illustrate the Java.util.ArrayList.clone() method:
Example 1:
// Java code to illustrate clone() method   import java.io.*; import java.util.ArrayList;   public class ArrayListDemo {       public static void main(String args[])     {           // Creating an empty ArrayList         ArrayList<String> list             = new ArrayList<String>();           // Use add() method         // to add elements in the list         list.add( "Geeks" );         list.add( "for" );         list.add( "Geeks" );         list.add( "10" );         list.add( "20" );           // Displaying the list         System.out.println( "First ArrayList: "                            + list);           // Creating another linked list and copying         ArrayList sec_list = new ArrayList();         sec_list = (ArrayList)list.clone();           // Displaying the other linked list         System.out.println( "Second ArrayList is: "                            + sec_list);     } } |
First ArrayList: [Geeks, for, Geeks, 10, 20] Second ArrayList is: [Geeks, for, Geeks, 10, 20]
Example 2:
// Java code to illustrate clone() method   import java.io.*; import java.util.ArrayList;   public class ArrayListDemo {       public static void main(String args[])     {           // Creating an empty ArrayList         ArrayList<Integer> list             = new ArrayList<Integer>();           // Use add() method         // to add elements in the list         list.add( 10 );         list.add( 20 );         list.add( 30 );         list.add( 40 );         list.add( 50 );           // Displaying the list         System.out.println( "First ArrayList: "                            + list);           // Creating another linked list and copying         ArrayList sec_list = new ArrayList();         sec_list = (ArrayList)list.clone();           // Displaying the other linked list         System.out.println( "Second ArrayList is: "                            + sec_list);     } } |
First ArrayList: [10, 20, 30, 40, 50] Second ArrayList is: [10, 20, 30, 40, 50]