Consumer.java

public class Consumer implements Runnable {
	
    private Data data;
    private int id;
    
    public Consumer(Data data, int id) {
        this.data = data;
        this.id = id;
    }
    
    @Override
    public void run() {        
        for (int i = 0; i < 100; i++) {
            try {
                Thread.sleep(200);
            } catch (InterruptedException e) { }
            
            System.out.println("Consumer #" + id + " get: " + data.get());
        }
    }
}