import java.util.LinkedList;
import java.util.concurrent.locks.Lock;
import java.util.concurrent.locks.ReentrantLock;

public class Monitor {

    private LinkedList<Integer> tallListe = new LinkedList<>();
    private Lock laas = new ReentrantLock();

    public void leggTil(int tall){
        laas.lock();
        try{
            tallListe.add(tall);
            System.out.println(tall);
        }finally{
            laas.unlock();
        }
        
    }
    
}