What is Token in Java?

Before starting with the concept of data types in Java, let’s be aware of the basics:

Java Token 

You must have read in your science classes that the cell is the smallest fundamental and individual unit of human body.

Similarly, every single individual unit of a Java program is called Token.

A Token is to Java what a cell is to human body.

There are various kinds of tokens:

1. Constants (Literals)
2. Variables (Identifiers)
3. Assignments
4. Punctuators
5. Separators
6. Operators