Wat are Reserved Words (Keywords) in a language?

About

A reserved word is a special token in a language that cannot be used by the programmer because they are already used by the application and have a special meaning.

Example

• In a URL, the backslash is used in the path
• In Xml, the greater than (<) is used in the tag
• In Java, the class word is used to define a class

¹⁾