package nauka;

public class JDBC {

    public static void main(String[] args) {
        Queue q = new Queue();
        Author a = new Author(args, q);
        Writer w = new Writer(args, q);
        new Thread(a).start();
        new Thread(w).start();
    }
}

class Author extends Thread {

    private String[] args;
    private Queue q;

    public Author(String[] args, Queue q) {
        this.args = args;
        this.q = q;
    }

    public void run() {
        try {
            sleep(1000);
        } catch (InterruptedException e1) {
            // TODO Auto-generated catch block
            e1.printStackTrace();
        }
        for (int i = 0; i < 100; i++) {
            q.put(args[i % args.length]);
            // System.out.println("Producer #" + i + " put: " + args[i]);
            try {
                sleep((int) (Math.random() * 100));
            } catch (InterruptedException e) {
            }
        }

    }
}

class Writer extends Thread {

    private String[] args;
    private Queue q;

    public Writer(String[] args, Queue q) {
        this.args = args;
        this.q = q;
    }

    public void run() {
        for (int i = 0; i < 100; i++) {
            q.get(args[i % args.length]);
            System.out.println(args[i % args.length]);
            try {
                sleep((int) (Math.random() * 100));
            } catch (InterruptedException e) {
            }
        }

    }
}

class Queue {
    private String content;
    private boolean available = false;

    public synchronized String get(String args) {
        while (available == false) {
            try {
                wait();
            } catch (InterruptedException e) {
            }
        }
        available = false;
        notifyAll();
        return content;
    }

    public synchronized void put(String value) {
        while (available == true) {
            try {
                wait();
            } catch (InterruptedException e) {
            }
        }
        content = value;
        available = true;
        notifyAll();
    }

}