Comments are lines or parts of lines not being processed.
They serve to describe what happens within the program or to disable program statements.
The comments are of two types - end of line comments or multiline comments.
See the following two options:
// This is an end line comment.
// Everything following the slashes until end of line is a comment.
integer count = 0; // Comment can follow the code
/* This is a multiline comment.
Everything between starting and ending symbol is a comment. */