What is Datatype?
Java supports two main categories of data types
1. Primitive Data Types: These are the basic data types built into the Java language.
Datatypes | Sizes |
byte short int long | 1 byte 2 bytes 4 bytes 8 bytes |
float double | 4 bytes 8 bytes |
char boolean | 2 bytes 1 bit ( true or false ) |
2. Non-primitive Data Types: It is also called reference data types, are used to store references to objects.