Check For Matching Dominos CONTRUCTOR

package defult;

import java.util.*;

public class Domino
{
    int x;
    int y;

    public int getX()
    {
        return x;
    }

    public void setX(int x)
    {
        this.x = x;
    }

    public int getY()
    {
        return y;
    }

    public void setY(int y)
    {
        this.y = y;
    }

    public Domino(int x)
    {
        this.x = x;
        this.y = x;
    }

    public Domino()
    {
        this.x = (int)(Math.random() *6) +1;
        this.y = (int)(Math.random() *6) +1;
    }

    public String toString()
    {
        return this.x + "," + this.y;
    }

}