Rectangle constructor

class RectangleShape
{ int length, breadth;
// rectangle constructor java
RectangleShape(int l, int b)
{
length = l;
breadth = b;
}
RectangleShape(int l)
{
length = l;
breadth = 20;
}
RectangleShape()
{
length = 6;
breadth = 2;
}
float getArea()
{
return(length * breadth);
}
}
public class thirteen
{
public static void main(String[] args)
{
RectangleShape rs1 = new RectangleShape();
RectangleShape rs2 = new RectangleShape(60);
RectangleShape rs3 = new RectangleShape(40, 20);
System.out.println("First rectangle : " + rs1.getArea());
System.out.println("Second rectangle : " + rs2.getArea());
System.out.println("Third Rectangle : " + rs3.getArea());
}
}