How to make use of .htaccess file to password protect a directory from users

Htaccess files affect the directory, they are placed in and all sub-directories,
i.e., an htaccess file located in your root directory (myexample.com) would affect
yoursite.com/content,
yoursite.com/content/contents, etc.

### BASIC PASSWORD PROTECTION ###

AuthName "CP3024 password example"

AuthType Basic

AuthUserFile /home/staff/acad/jphb/public_html/cp3024/passex/passwd

Require compu3024

By using the htpassswd command we can create a .htpasswd file

" htpasswd -c file-name user-name "

example--> htpasswd -c passwd compu3024

where file-name refers to the file to hold the password

and user-name is the user-name associated with the "realm" make sure password file is world readable

Are you know what is the use of ErrorDocument setting in .htaccess.

Thanks for Advance.
--kamal.