java 56 code projects - shapes cannot pass all test

Question

just only test 3 fail, but that is hidden testing, cannot debug, how can I do?
https://code.sololearn.com/cxV1VjP8PHmh/?ref=app

Answer 1

Share your code along with problem description....
edit:
notify after any edit like this : kl wong
else give a reply to other see.

Answer 2

void area() {
double area = Math.PI* width * width ;
System.out.println(area);

}

//Use this way ..