Java has eight primitive types:
The primitive types are also referred to as simple types.
These eight primitive types can be put in four groups:
| Group Name | Description |
|---|---|
| Integers | includes byte, short, int, and long, which are for whole-valued signed numbers. |
| Floating-point numbers | includes float and double, which represent numbers with fractional precision. |
| Characters | includes char, which represents symbols in a character set, like letters and numbers. |
| Boolean | includes boolean, which is a special type for representing true or false values. |
The primitive form the basis for all other types of data that you can create.
The primitive types represent single values-not complex objects.
Although Java is otherwise completely object-oriented, the primitive types are not.
All Java data types have a strictly defined range.
For example, an int is always 32 bits, regardless of the particular platform.