C# Methods

C# Methods

A method is a block of code that runs only when it's called. You can pass data into it and get data back.

Creating a method

A method is declared inside a class. It has a return type, a name, and parentheses:

static void MyMethod()
{
  Console.WriteLine("I just got executed!");
}

Calling a method

Call it by name followed by parentheses:

static void MyMethod()
{
  Console.WriteLine("I just got executed!");
}

static void Main(string[] args)
{
  MyMethod();
  MyMethod();
  MyMethod();
}

The output is:

I just got executed!
I just got executed!
I just got executed!

A method can be called many times - that's the whole point of code reuse.

The parts of a method

• static - belongs to the class itself, callable without creating an object.
• void - the return type; void means "returns nothing".
• MyMethod - the method name.
• () - where parameters go.

Why use methods?

• Reuse code instead of copying it.
• Break big problems into small, readable pieces.
• Fix a bug in one place instead of everywhere.

TL;DR

• Methods are reusable blocks of code.
• static void MethodName() is the basic form.
• void means it returns nothing.
• Call a method with its name and ().