LinkedTransferQueue size() method in Java

The java.util.concurrent.LinkedTransferQueue.size() method is an in-built function in Java which gives the total count of the elements present in the queue.

Syntax:

LinkedTransferQueue.size()

Parameters: The function does not accept any parameter.

Return Value: The function returns the number of elements in the queue.

Below programs illustrate the LinkedTransferQueue.size() method:

Program 1:

// Java Program Demonstrate size()
// method of LinkedTransferQueue

import java.util.concurrent.LinkedTransferQueue;

class LinkedTransferQueueSizeExample1 {
    public static void main(String[] args)
    {
        // Initializing the queue
        LinkedTransferQueue<Integer> queue =
                      new LinkedTransferQueue<Integer>();

        // Adding elements to this queue
        for (int i = 1; i <= 10; i++)
            queue.add(i);

        // Printing the size of the queue
        System.out.println("Number of elements in the queue = "
                                                + queue.size());
        // Printing the elements
        System.out.println("Queue : " + queue);
    }
}

Output:

Number of elements in the queue = 10
Queue : [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]

Program 2:

// Java Program Demonstrate size()
// method of LinkedTransferQueue

import java.util.concurrent.LinkedTransferQueue;

class LinkedTransferQueueSizeExample2 {
    public static void main(String[] args)
    {
        // Initializing the queue
        LinkedTransferQueue<String> queue =
                  new LinkedTransferQueue<String>();

        // Adding elements to this queue
        queue.add("A");
        queue.add("B");
        queue.add("C");
        queue.add("D");
        queue.add("E");

        // Printing the size of the queue
        System.out.println("Number of elements in the queue = "
                                                + queue.size());
        // Printing the elements
        System.out.println("Queue : " + queue);
    }
}

Output:

Number of elements in the queue = 5
Queue : [A, B, C, D, E]

Reference: https://docs.oracle.com/javase/7/docs/api/java/util/concurrent/LinkedTransferQueue.html#size()