Episode 1, Calculator
We’ll build a small application that’s capable of doing simple calculations, like 1 + 2 = 4.
Why 4, you might ask, because every program might have a bug.
The scope of this exercise is to create multiple
.java files with classes and functions inside them.
Then these classes and their functions will interact with each other.
We are going to use quite a lot of static variables and functions. This is not ok to use in real applications, but is easier to start with.