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

// Monitor-klasse
public class Kode {
    private Lock lock = new ReentrantLock();
    private String code;

    public boolean compareCode(String s) {
        lock.lock();
        try {
            return code.equals(s);
        } finally {
            lock.unlock();
        }
    }

    public void addCode(String c) {
        lock.lock();
        try {
            code = c;
        } finally {
            lock.unlock();
        }
    } 

    public String getCode() {
        lock.lock();
        try {
            return code;
        } finally {
            lock.unlock();
        }
    }
}