Area of Rectangle in Java

//Area of Rectangle 
class Rectangle
{
void area(double l,double b)
{
double ar=l*b;
System.out.println("Area of the rectangle is:"+ar);
}
}
class RectangleMain
{
public static void main(String arg[])
{
Rectangle r = new Rectangle();
double len,br;
System.out.println("Enter length & breadth :");
len = Integer.parseInt(System.console().readLine());
br = Integer.parseInt(System.console().readLine());
r.area(len,br);
}
}


Output:
Enter length & breadth :
2
4
Area of the rectangle is:8.0