LinkedBlockingQueue toString() method in Java

The toString() method of LinkedBlockingQueue returns a string representation of this collection. The string representation consists of a list of the collection’s elements in the order they are returned by its iterator, enclosed in square brackets (“[]”). The adjacent elements are separated by the characters “, “ (comma and space). The elements are converted to strings as by String.valueOf(Object).

Syntax:

public String toString()

Parameters: This method does not accept any parameters.



Returns: This method returns a string representation of this collection.

Below programs illustrate toString() method of LinkedBlockingQueue:

Program 1:

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// Java Program Demonstrate toString()
// method of LinkedBlockingQueue
  
import java.util.concurrent.LinkedBlockingQueue;
import java.util.*;
  
public class GFG {
    public static void main(String[] args)
  
    {
  
        // create object of LinkedBlockingQueue
        LinkedBlockingQueue<Integer> LBQ
            = new LinkedBlockingQueue<Integer>();
  
        // Add numbers to end of LinkedBlockingQueue
        LBQ.add(7855642);
        LBQ.add(35658786);
        LBQ.add(5278367);
        LBQ.add(74381793);
  
        // Print the queue
        System.out.println("Linked Blocking Queue: " + LBQ);
  
        System.out.println("Linked Blocking Queue in string " 
                                           + LBQ.toString());
    }
}

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Output:

Linked Blocking Queue: [7855642, 35658786, 5278367, 74381793]
Linked Blocking Queue in string [7855642, 35658786, 5278367, 74381793]

Program 2:

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// Java Program Demonstrate toString()
// method of LinkedBlockingQueue
  
import java.util.concurrent.LinkedBlockingQueue;
import java.util.*;
  
public class GFG {
    public static void main(String[] args)
  
    {
  
        // create object of LinkedBlockingQueue
        LinkedBlockingQueue<String> LBQ
            = new LinkedBlockingQueue<String>();
  
        // Add numbers to end of LinkedBlockingQueue
        LBQ.add("gopal");
        LBQ.add("gate");
        LBQ.add("GRE");
        LBQ.add("CAT");
  
        // Print the queue
        System.out.println("Linked Blocking Queue: " + LBQ);
  
        System.out.println("Linked Blocking Queue in string " 
                                            + LBQ.toString());
    }
}

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Output:

Linked Blocking Queue: [gopal, gate, GRE, CAT]
Linked Blocking Queue in string [gopal, gate, GRE, CAT]

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



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