product klasse java

package tspsim;

public class Product implements Cloneable{
    private int id;
    private int x;
    private int y;

    public Product(int id, int x, int y) {
        this.id = id;
        this.x = x;
        this.y = y;
    }

    public int getId(){
        return this.id;
    }

    public int getX() {
        return this.x;
    }

    public int getY() {
        return this.y;
    }

    public String toString() {
        return "id:" + String.valueOf(this.id) + " x:" + String.valueOf(this.x) + " y:" + String.valueOf(this.y);
    }

    public Product clone() throws CloneNotSupportedException{
        Product clone = (Product)super.clone();
        return clone;
    }
}