In java, data types are classified into two categories: Primitive Data type or Intrinsic or built-in data type Non-Primitive Data type or derived or reference data type Primitive Data Type: In Java, ...

https://www.w3schools.com/java/java_data_types.asp We will focus mostly on int, double, char, and Boolean. Non-Primitive Data Types are called Java Objects or Java ...

Primitive types represent the simplest, most direct way to represent data in code. Even the most complicated classes in Java can be flattened down to nothing more than the set of primitive data types ...