Question

Can you please write a class for circle, and rectangle(private) in java. then do Driver---Scanner. the Driver should have both.

Answer 1

class CalculateArea
{
public static void main (String[] args)
{
Rectangle r = new Rectangle(40.0,50.0);
  
System.out.println("Rectangle\n--------- ");
System.out.println("Area : "+r.getArea());
  
System.out.println();
  
Circle c = new Circle(30.0);
  
System.out.println("Circle\n--------- ");
System.out.println("Area : "+c.getArea());
}
  
static class Rectangle
   {
private double length,width;
  
public Rectangle(double length,double width) // constructor
{
this.length = length;
this.width = width;
}
public double getArea()
{
return length*width;
}
}
static class Circle
{
private double radius;
  
public Circle(double radius) // constructor
{
this.radius = radius;
}
public double getArea()
{
return 3.14*radius*radius;
}
}
}

Output:

Rectangle
--------- 
Area : 2000.0

Circle
--------- 
Area : 2826.0

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