help with java shapes challenge (the fifth official java challenge,more on classes module)

Question

hey there. i tried to solve the fifth official challenge, for all the test cases it is correct but there is a locked case that i cannot see and incorrect. please help me, thank you.
my code:
import java.util.Scanner;

abstract class Shape {
int width;
//const pi= Math.PI;
public static void area(int width){
System.out.println("");
}
}
//your code goes here
class Square extends Shape {
Square (int x){
this.width =x;
}
public static void area (int width ){
int area = width*width;
System.out.println(area);
}
}
class Circle extends Shape {
Circle (int y){
this.width =y;
}
public static void area (int r){
double radius=r;
double area= radius*radius*Math.PI;
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();

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

Answer 1

I suspect this has to do with the int type that you use, it would make more sense to use doubles instead

double x = sc.nextDouble();

you should also change it in the area method

I hope this help :)

Answer 2

import java.util.Scanner;

abstract class Shape {
double width ;
public static void area(double width){
System.out.println("");
}
}
//your code goes here
class Square extends Shape {
Square (int x){
this.width =x;
}
public static void area (int width ){
int area = width*width;
System.out.println(area);
}
}
class Circle extends Shape {
Circle (double y){
this.width =y;
}
public static void area (double r) {
double area= r*r*Math.PI;
System.out.println(area);
}
}

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

Square a = new Square(x);
Circle b = new Circle(y);
a.area(x);
b.area(y);
}
}
i made the code as above, i guess I followed the changes you suggested, it worked but exactly the same 3rd case wrong

Answer 3

you also have to do it for the square

double x = sc.nextDouble();
double y = sc.nextDouble();

public static void area(double width) { }

Answer 4

that made all the cases wrong, the area has become outputting not only whole number for the square area but with a 0 after the point