public class Door {
    private String inscription;
    private boolean locked;
    private boolean closed;

    public Door(String c) {
        this.inscription = c;
        this.locked = true;
        this.closed = true;
    }

    public boolean isClosed() {
        return this.closed;
    }

    public boolean isLocked() {
        return this.locked;
    }

    public void open() {
        if (isClosed() && !isLocked())
            this.closed = true;
        else
            System.out.println(inscription + "is either open or locked");
    }

    public void close() {
        if (isClosed())
            System.out.println(inscription + " is closed");
        else
            this.closed = true;
    }

    public void lock() {
        if (isLocked())
            System.out.println(inscription + " is locked");
        else
            this.locked = true;
    }

    public void unlock() {
        if (!isLocked())
            System.out.println(inscription + " is unlocked");
        else {
            this.locked = false;
        }
    }

}