How to encode '<' & '>' Symbols in XML

Question

Since < & > as part of XML syntax. How to add these symbols as part of the data like

<Note>Have to have <> symbols</Note>

I have heard there are different types of data in which XML can be sent like CDATA etc, since character data parses each character it doesn't allow these symbols.

I do know about < and > but that isn't helpful.

Are there are any modes of data in which XML can be sent to avoid any tool recognizing the symbols?

Answer 1

< is encoded as <.
> is encoded as >.
" is encoded as ".
& is encoded as &.

Alternatively, you can pack the whole data in a CDATA section if it doesn't contain a CDATA section itself. If you're generating programatically, encoding each character is the better solution though.

Note that there is a plethora of XML libraries available for almost every language. Unless you want to learn about XML, I strongly recommend using an XML library instead of writing your own.