DAY 5
WEEK 1
5 Organizing into Functions
Although object-oriented programming has shifted attention from functions and
toward objects, functions nonetheless remain a central component of any pro-
gram. Global functions can exist outside of objects and classes, and member
functions (sometimes called member methods) exist within a class and do its
work.
Today, you will learn- What a function is and what its parts are
- How to declare and define functions
- How to pass parameters into functions
- How to return a value from a function
You’ll start with global functions today, and tomorrow you’ll see how functions
work from within classes and objects as well.