Why is this happening with code?

Question

When I call methods using different objects it give me same output rather then giving me different outputs for different object?
https://code.sololearn.com/cKpru3QkmicX/?ref=app

Answer 1

Here I wrote a little comment on changes

https://code.sololearn.com/cis3GcFHkReU/?ref=app

Answer 2

Read about Static variable in Java.
It is a keyword which is used to share the same variable or method of a given class. Basically, static is used for a constant variable or a method that is same for every instance of a class.

You should remove the static keyword for your class variables. Then first get user inputs to separate weight and height variables and pass that while object creation.