Program comments are notes left on programs to explain or highlight the functionality of code. Comments are non-executing code and will not affect the usage of a program.
- Line commentsare for a single line of code and begin with two forward slashes “//”. Anything following the slashes on that line of code will be considered a comment and not execute.
- Block commentsare for multiple lines of code and begin with one forward slash and an asterisk “/*” and to complete the comment end with an asterisk and a forward slash “*/”.
Example: Line comment
// Anything after two forward slashes on this line will not execute. Console.Write("Hello World!"); // A comment can also be placed after code.
Example: Block comment
/* Comment out multiple lines of code. Anything in this area is also a comment. */
Visual Studio has a convenient way to quickly comment or uncomment selected lines of code. Click on the Comment or Uncomment buttons.