Simple User-defined Functions

Function

We can divide a program into procedural components or modules called functions in C#. We are already familiar with the Main() function. This function can be copied and reused in a programming technique called a modular or procedural approach, also known as the divide and conquer approach. We should always try to design functions that can be reused in other programs.

Broadly, there are two types of functions, which we’ll explore in the following sections.

The structure of a function

The following slides illustrate various parts of a function definition:

A function name can ...