Comments in C#

In C#, comments are used to add descriptive text to code that does not get executed by the compiler. This text can be used to explain the purpose of the code, document how it works, or provide any other information that might be useful for someone reading the code. There are two types of comments in C#:

1. Single-line comments
2. Multi-line comments

C# single-line comments

Single-line comments start with two forward slashes // and continue until the end of the line. They are typically used for short comments that only apply to a single line of code.

In the above code, the comment after the semicolon explains what the variable is used for.

C# multi-line comments

Multi-line comments start with a forward slash and an asterisk /* and end with an asterisk and a forward slash */. They can span multiple lines and are typically used for longer comments that explain multiple lines of code.

/* This method calculates the area of a rectangle It takes two arguments: length and width */ public int CalculateArea(int length, int width) { return length * width; }

In the above code, the multi-line comment explains what the method does and what arguments it takes.

It is important to use comments effectively to make your code more readable and maintainable. Good commenting practices include using clear and concise language, avoiding excessive comments that state the obvious, and updating comments when code is changed.