Contoh Metoda Wait() dan Notify()

public synchronized void enter(Object item){
    while (count == BUFFER_SIZE){
        try{
            wait();
        }
        catch (InterruptedException e) {}
    }
    // add an item to the buffer
    ++count;
    buffer[in] = item;
    in = (in+1) % BUFFER_SIZE;
    notify();
}

public synchronized void remove(Object item){
    while (count == 0){
        try{
            wait();
        }
        catch (InterruptedException e) {}
    }
    // remove an item to the buffer
    --count;
    item = buffer[out];
    out = (out+1) % BUFFER_SIZE;
    notify();
    return item;
}