Java program codes: Constructor in Java

class another{
    int x,y;
    another(int a, int b){
        x = a;
        y = b;
    }
    another(){
    }
    int area(){
        int ar = x*y;
        return(ar);
    }
}
public class Construct{
   public static void main(String[] args)
   {
       another b = new another();
       b.x = 2;
       b.y = 3;
       System.out.println("Area of rectangle : " + b.area());
       System.out.println("Value of y in another class : " + b.y);
       another a = new another(1,1);
       System.out.println("Area of rectangle : " + a.area());
       System.out.println("Value of x in another class : " + a.x);
   }
}