Notes

// 10

public abstract class Shape
{
public int x;
public Shape() { }

public abstract double Area();
}

public interface IDraw
{
public void Draw();
}
public class Rectangle : Shape,IDraw
{
public int len;
public int breadth;
public Rectangle(int len, int breadth)
{
this.len = len;
this.breadth = breadth;
}

public override double Area()
{
return len * breadth;
}
public void Draw()
{
Console.WriteLine("Drawing Shape");
}
}

public class Circle : Shape,IDraw
{
public int radius;
public Circle(int radius)
{
this.radius = radius;
}

public override double Area()
{
return 3.14 * radius * radius;
}

public void Draw()
{
Console.WriteLine("Drawing Shape");
}
}

public class ShapeDraw
{
public static void Main()
{
Rectangle rect = new Rectangle(10, 34);
rect.Draw();
double result = rect.Area();
Console.WriteLine("Area of Rectangle is : " + result);


Circle circle = new Circle(10);
circle.Draw();
double res = circle.Area();
Console.WriteLine("Area of Circle is : " + res);
}

}