Lesson 56 ,Java ,Shape , test 3 failure

Question

import java.util.Scanner;
abstract class Shape {
int width;
abstract void area();
}
//your code goes here
class Square extends Shape {
Square (int width ){
super.width = width ;
}
void area(){
System.out.println(width *width);
}
}
class Circle extends Shape {
Circle (int width ){
super.width = width ;
}
void area(){
System.out.println(Math.PI * Math.pow(width,2));
}
}
public class Program {
public static void main(String[ ] args) {
Scanner sc = new Scanner(System.in);
int x = sc.nextInt();
int y = sc.nextInt();
Square a = new Square(x);
Circle b = new Circle(y);
a.area();
b.area();
}
}

Answer 1

Rounding error. Do Math.PI * width first. I.e. replace
Math.PI * Math.pow(width, 2)
with
Math.PI * width * width

Answer 2

Thank u very much Ani Jona 🕊
This help me lot

Answer 3

You're welcome :)