ArrayBlockingQueue put() method in Java
Last Updated :
26 Nov, 2018
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ArrayBlockingQueue is bounded, blocking queue that stores the elements internally backed by an array.
Java
Java
- ArrayBlockingQueue class is a member of the Java Collections Framework.
- Bounded means it will have a fixed size, you can not store number the elements more than the capacity of the queue.
- The queue also follows FIFO (first-in-first-out) rule for storing and removing elements from the queue.
- If you try to put an element into a full queue or to take an element from an empty queue then the queue will block you.
public void put(E e) throws InterruptedExceptionParameter: e - the element to add in queue. Throws InterruptedException - if interrupted while waiting. NullPointerException - if the specified element is null. Below programs illustrate put(E e) method of ArrayBlockingQueue. Example 1
// Java Program to demonstrate put(E e)
// method of ArrayBlockingQueue.
import java.util.concurrent.ArrayBlockingQueue;
public class GFG {
public static void main(String[] args) throws InterruptedException
{
// define capacity of ArrayBlockingQueue
int capacity = 5;
// create object of ArrayBlockingQueue
ArrayBlockingQueue<Integer> queue = new ArrayBlockingQueue<Integer>(capacity);
// Add elements to ArrayBlockingQueue using put method
queue.put(223);
queue.put(546);
queue.put(986);
queue.put(357);
queue.put(964);
// print Queue
System.out.println("queue contains " + queue);
}
}
Output : queue contains [223, 546, 986, 357, 964]Example 2
// Java Program to demonstrate put(E e)
// method of ArrayBlockingQueue
import java.util.concurrent.ArrayBlockingQueue;
public class GFG {
public static void main(String[] args) throws InterruptedException
{
// define capacity of ArrayBlockingQueue
int capacity = 5;
// create object of ArrayBlockingQueue
ArrayBlockingQueue<String> queue = new ArrayBlockingQueue<String>(capacity);
// Add elements to ArrayBlockingQueue using put method
queue.put("StarWars");
queue.put("SuperMan");
queue.put("Flash");
queue.put("BatMan");
queue.put("Avengers");
// print Queue
System.out.println("queue contains " + queue);
// remove some elements
queue.remove();
queue.remove();
// Add elements to ArrayBlockingQueue using put method
queue.put("CaptainAmerica");
queue.put("Thor");
System.out.println("queue contains " + queue);
}
}
Output : queue contains [StarWars, SuperMan, Flash, BatMan, Avengers] queue contains [Flash, BatMan, Avengers, CaptainAmerica, Thor]Reference: https://docs.oracle.com/javase/7/docs/api/java/util/concurrent/ArrayBlockingQueue.html#put(E)
