<P> Comments are generally formatted as either block comments (also called prologue comments or stream comments) or line comments (also called inline comments). </P> <P> Block comments delimit a region of source code which may span multiple lines . This region is specified with a start delimiter and an end delimiter . Some programming languages (such as MATLAB) allow block comments to be recursively nested inside one another, but others (such as Java) do not . </P> <P> Line comments either start with a comment delimiter and continue until the end of the line, or in some cases, start at a specific column (character line offset) in the source code, and continue until the end of the line . </P> <P> Some programming languages employ both block and line comments with different comment delimiters . For example, C++ has block comments delimited by / * and * / that can span multiple lines and line comments delimited by / / . Other languages support only one type of comment . For example, Ada comments are line comments: they start with--and continue to the end of the line . </P>

Explain the two different ways to give comments in c++