Java - Objeto con numeros aleatorios

public class Productos_almacenes {

    private int ID_producto;

    private int ID_almacen1;

    private int ID_almacen2;

    private int Stock;

public Productos_almacenes(int id){

    this.ID_producto = id;

    this.ID_almacen1 = (int) Math.floor(Math.random()*(10)+1);

    do{

        this.ID_almacen2 = (int) Math.floor(Math.random()*(10)+1);

    }while (ID_almacen1==ID_almacen2);

    this.Stock = (int) Math.floor(Math.random()*(10)+1);

}