implement-your-own blocking queue in java

Question

I know this question has been asked and answered many times before, but I just couldn\'t figure out a trick on the examples found around internet, like this or that one.

Answer 1

I would like to write a simple blocking queue implementation which will help the people to understand this easily. This is for someone who is novice to this.

class BlockingQueue {
private List queue = new LinkedList();

private int limit = 10;

public BlockingQueue(int limit){
    this.limit = limit;
}

public synchronized void enqueue(Object ele) throws InterruptedException {
    while(queue.size() == limit)
        wait();
    if(queue.size() == 0)
        notifyAll();
    // add
    queue.add(ele);
}

public synchronized Object deque() throws InterruptedException {
    while (queue.size() == 0)
        wait();
    if(queue.size() == limit)
        notifyAll();
    return queue.remove(0);
}

}

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