Shapes problem in java

Question

So this is my code:

import java.util.Scanner;

abstract class Shape {
int width;
abstract void area();
double k=Math.PI;
double arie;
}
//your code goes here
class Square extends Shape {

Square(int x){
this.width=x;

}
public void area(){
int arie2=width*width;
System.out.println(arie2);
}
}
class Circle extends Shape {

Circle(int x){
this.width=x;
}
public void area(){
arie= width*width*k;
System.out.println( arie);
}
}

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();
}
}

I cant figure out why it doesnt pass all the tests ( it doesnt pass a locked one ,test case 3)
Any solutions?

Answer 1

import java.util.Scanner;
abstract class Shape {
int width;
abstract void area();
}

class Square extends Shape{
public int area2;
public Square(int x)
{
width=x;
}
public void area()
{
area2=width*width;
System.out.println(area2);

}
}
class Circle extends Shape {
public double area1;
public Circle(int y)
{
width=y;
}
public void area()
{
area1=Math.PI*width*width;
System.out.println(area1);
}
}

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 2

System.out.println(Math.PI*
(double)width*width
// * Math.PI // not at the end
);

Answer 3

See if this works.
https://www.sololearn.com/Discuss/2603950/?ref=app

Answer 4

Try this:

https://www.sololearn.com/coach/971?ref=app