Where did I go wrong?

Question

import java.util.Scanner;

abstract class Shape {
int width;
abstract void area();
}

class Square extends Shape{
public void area(int width){
area = width*width;
System.out.println(area);
}
}

class Circle extends Shape{
public void area(int width){
area = Math.PI*(width*width);
System.out.println(area);
}
}

public class Program {
public static void main(String[ ] args) {
Scanner sc = new Scanner(System.in);
int x = sc.nextInt();
int y = sc.nextInt();

Shape a = new Square(x);
Shape b = new Circle(y);
a.area();
b.area();
}
}

Output (to be)
Sample Input:
5
2

Sample Output:
25
12.566370614359172

Answer 1

Bettina Helen R

Remove ( )
just write

Math.PI * width * width