I think I understand.
Am I right in saying that you have to declare static for int A because it is an instance variable while it is just declared in the class and an instance variable can't be used as an object?
package com.codegym.task.task06.task0615;
/*
Feng Shui and statics
*/
public class static Solution {
public int A = 5;
public int B = 2;
public int C = A * B;
public static void main(String[] args) {
A = 15;
}
}