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LinkedTransferQueue take() method in Java

Last Updated : 14 Sep, 2018
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The java.util.concurrent.LinkedTransferQueue.take() method is an in-built function in Java which retrieves and remove the first element of the queue. This method also waits (if necessary) until an element becomes available. Syntax:
LinkedTransferQueue.take()  
Parameters: The function does not accept any parameter. Return Value: The function returns the first element of the queue. Exceptions: The function throws InterruptedException if interrupted while waiting. Below programs illustrate the java.util.concurrent.LinkedTransferQueue.take() : Program 1: Java
// Java Program Demonstrate take()
// method of LinkedTransferQueue 

import java.util.concurrent.LinkedTransferQueue;

class LinkedTransferQueueTakeExample1 {
    public static void main(String[] args) throws Exception
    {
        // Initializing the queue
        LinkedTransferQueue<String> queue = 
                        new LinkedTransferQueue<String>();

        // Adding elements to this queue
        queue.add("Alex");
        queue.add("Bob");
        queue.add("Chuck");
        queue.add("Drake");
        queue.add("Eric");

        // Printing the elements
        System.out.println("Elements are :");
        for (String xyz : queue) {
            // will take and remove the head of the queue
            System.out.println(queue.take());
        }

        // Printing the size of the Queue
        System.out.println("Queue Size: " + queue.size());
    }
}
Output:
Elements are :
Alex
Bob
Chuck
Drake
Eric
Queue Size: 0
Program 2: Java
// Java Program Demonstrate take()
// method of LinkedTransferQueue 

import java.util.concurrent.LinkedTransferQueue;

class LinkedTransferQueueTakeExample2 {
    public static void main(String[] args) throws Exception
    {
        // Initializing the queue
        LinkedTransferQueue<Integer> queue = 
                        new LinkedTransferQueue<Integer>();

        // Adding elements to this queue
        for (int i = 1; i <= 5; i++)
            queue.add(i);

        // Printing the elements
        System.out.println("Elements are :");
        for (Integer xyz : queue) {
            // will take and remove the head of the queue
            System.out.println(queue.take());
        }
        // Printing the size of the Queue
        System.out.println("Queue Size: " + queue.size());
    }
}
Output:
Elements are :
1
2
3
4
5
Queue Size: 0
Reference : https://docs.oracle.com/javase/7/docs/api/java/util/concurrent/LinkedTransferQueue.html#take()

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