Tokens in Java

TOKENS

Types of Tokens in Java

1. Keywords
2. Identifiers / Variables
3. Literals / Values
4. Operators
5. Separators/ Punctuators

Keywords: Keywords are reserved words that have special meaning for the compiler.

Example: class, int, public, float, new, for, if, switch etc.

The keywords of any programming language can not be used for naming any identifier.

Identifiers: Identifiers are the names given to a program or a part of the program.

The names given by the user to any variable or class or function are known as Identifiers.

Literals: Literals are constant values which are assigned to the identifiers.

In simple language it can be said that literals are the values that can be stored in any variable.

Operators: Operators are special symbols that operate on operands and give some result.

Example: int age = 15; 

In the above example 

int is a keyword (data type) 

age is an identifier i.e. name given to a variable

= is an operator (assignment operator)

15 is a literal (integer literal)