successful execution of program.

import java.util.*;

class Area_of_shape{
public static void main(String arg[])
{
Rectangle r = new Rectangle(10, 4);
Square s = new Square(7);
Circle c = new Circle(3.5);

    System.out.println("Rectangle Area : " + r.getArea());
    System.out.println("Square Area : " + s.getArea());
    System.out.println("Circle Area : " + c.getArea());
    System.out.println();
    
    if ((r.getArea() > c.getArea()) && (r.getArea() > s.getArea()))
    {
        System.out.println("Rectangle has the largest area.");
    }
    else if( s.getArea() > c.getArea() )
    {
        System.out.println("Square has the largest area.");
    }
    else
    {
        System.out.println("Circle has the largest area.");
    }    
}

}

class Rectangle
{
double length;
double breadth;

Rectangle(double length, double breadth)
{
    this.length = length;
    this.breadth = breadth;
}

double getArea()
{
    return length * breadth;
}

}

class Square
{
double side;

Square(double side)
{
    this.side = side;
}

double getArea()
{
    return side * side;
}

}

class Circle
{
double radius;

Circle(double radius)
{
    this.radius = radius;
}

double getArea()
{
    return (22.0/7.0) * radius * radius;
}

}