Java Data types

1. Why there are data types

The Java language is a strongly typed language that defines specific data types for each type of data.

2. Javaclassification of data types in

Basic data Types : the base data type is Java the types that are built into the language are integer types, decimal types, character types, and Boolean types.

(1) These four basic types are the simplest and most basic types:

integer (byte , short , int , long) (float double" , character type , Boolean type

(2) Reference data type : is a powerful data type that is created based on a basic data type. A Super Class library is available in Javase, which contains nearly universal reference data types.

Java Data types