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CopyOnWriteArrayList toString() method in Java

  • Last Updated : 26 Nov, 2018

The toString() method of CopyOnWriteArrayList returns the string representation of the list.

Syntax:

public String toString()

Parameters: The function does not accepts any parameter.

Return Value: The function returns the string representation of the list.

Below programs illustrate the above function:



Program 1:




// Java Program to illustrate the CopyOnWriteArrayList
// toString() method in Java
import java.util.concurrent.CopyOnWriteArrayList;
import java.util.*;
  
public class GFG {
    public static void main(String[] args)
    {
  
        // create object of CopyOnWriteArrayList
        CopyOnWriteArrayList<Integer> ArrLis
            = new CopyOnWriteArrayList<Integer>();
  
        // Add elements
        ArrLis.add(32);
        ArrLis.add(67);
        ArrLis.add(98);
        ArrLis.add(100);
  
        // print CopyOnWriteArrayList
        System.out.println("CopyOnWriteArrayList: " 
                                          + ArrLis);
  
        System.out.println("ArrLis converted to string: " 
                                    + ArrLis.toString());
    }
}
Output:
CopyOnWriteArrayList: [32, 67, 98, 100]
ArrLis converted to string: [32, 67, 98, 100]

Program 2:




// Java Program to illustrate the CopyOnWriteArrayList
// toString()() method in Java
import java.util.concurrent.CopyOnWriteArrayList;
import java.util.*;
  
public class GFG {
    public static void main(String[] args)
    {
  
        // create object of CopyOnWriteArrayList
        CopyOnWriteArrayList<String> ArrLis
            = new CopyOnWriteArrayList<String>();
  
        // Add elements
        ArrLis.add("gopal");
        ArrLis.add("gfg");
        ArrLis.add("jgec");
        ArrLis.add("sudo");
  
        // print CopyOnWriteArrayList
        System.out.println("CopyOnWriteArrayList: " + ArrLis);
  
        System.out.println("ArrLis converted to string: " 
                                      + ArrLis.toString());
    }
}
Output:
CopyOnWriteArrayList: [gopal, gfg, jgec, sudo]
ArrLis converted to string: [gopal, gfg, jgec, sudo]

Reference: https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/CopyOnWriteArrayList.html#toString–

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