Program comments are explanatory statements that you can include in the C++ code. These comments help anyone reading the source code. All programming languages allow for some form of comments.
C++ supports single-line and multi-line comments. All characters available inside any comment are ignored by C++ compiler.
To create a single line comment, we use the // notation. Wherever you want to start the comment, start it with //. For example,
// This is a comment cout<<"Hello"; // This is a comment following a statement.
Multiline comments span multiple lines and are often called block comments. You can use it using the /* */ notation. For example,
/* This is a Multiline comment */