Java ArrayBlockingQueue clear() Method

The clear() method of ArrayBlockingQueue class automatically withdraws all the elements from this priority queue.

After calling this method, the queue will be empty.

Syntax:

Parameters:

Specified By:

The clear() method of class ArrayBlockingQueue is specified by clear() method in interface Collection.

Override:

The clear() method of class ArrayBlockingQueue overrides the clear() method of class AbstractQueue.

Example 1

import java.util.concurrent.ArrayBlockingQueue;
import java.util.concurrent.BlockingQueue;
public class ArrayBlockingQueueClearExample1 {
    public static void main(String[] argv) throws Exception {
        int capacity = 10;
        int i =0;
        BlockingQueue<Integer> queue = new ArrayBlockingQueue<Integer>(capacity);
        for (i = 1; i <= capacity; i++) {
            //it will add the numbers to the tail of queue
          queue.add(i);}
        System.out.println("queue :");
            System.out.println(queue);
        System.out.println("\nAfter applying clear operation:");
        queue.clear();
        System.out.println("queue : \n"+queue);
    }
}

Output:

queue :
[1, 2, 3, 4, 5, 6, 7, 8, 9, 10]

After applying clear operation:
queue : 
[]

Example 2

import java.util.concurrent.ArrayBlockingQueue;
import java.util.concurrent.BlockingQueue;
public class ArrayBlockingQueueClearExample2 {
    public static void main(String[] args) {
        int capacity = 100;
        BlockingQueue<String> queue = new ArrayBlockingQueue<>(capacity);
        // add elements to the queue
        queue.add("aman");
        queue.add("bhavika");
        System.out.println("Name = "+queue);
        System.out.println("After clearing the queue :");
        // clear() method will erase the whole queue
        queue.clear();
        System.out.println("Name = "+queue);
    }
}

Output:

Name = [aman, bhavika]
After clearing the queue :
Name = []

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Java ArrayBlockingQueue clear() Method

Syntax:

Parameters:

Specified By:

Override:

Example 1

Example 2

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Java ArrayBlockingQueue clear() Method

Syntax: