Data Types Supported in Java

This section provides a list of data types supported in Java: 8 primitive data types and 5 reference data types.

What are data types supported in Java? The following table lists all data types supported in Java and shows how they related to each other:

Data Types
|  
|- Primitive Types
|  |
|  |- Numeric Types
|  |  |
|  |  |- Integral Types
|  |  |  |- byte 
|  |  |  |- short 
|  |  |  |- int 
|  |  |  |- long 
|  |  |  |- char
|  |  |          
|  |  |- Floating Point Types
|  |     |- float 
|  |     |- double
|  |  
|  |- boolean
|
|- Reference Types
   |
   |- Class Or Interface Type
   |  |- Class Type
   |  |- Interface Type
   |  
   |- Type Variable
   |  
   |- Array Type
   |
   |- null

Primitive types will be discussed in this chapter. Reference types will be discussed in other chapters in this book.

Last update: 2014.

Table of Contents

 About This Book

 Installing JDK 1.8 on Windows

 Execution Process, Entry Point, Input and Output

Primitive Data Types and Literals

Data Types Supported in Java

 Integer Data Types

 Floating-Point Data Types

 Logical (Boolean) Data Type

 Literals of Primitive Types

 Literal Formats for Integers

 Literal Formats for Integers - Example

 Literal Formats for Floating-Point

 Literal Formats for Floating-Point - Example

 Literal Formats for Characters

 Literal Formats for Character - Example

 Bits, Bytes, Bitwise and Shift Operations

 Managing Bit Strings in Byte Arrays

 Reference Data Types and Variables

 StringBuffer - The String Buffer Class

 System Properties and Runtime Object Methods

 Generic Classes and Parameterized Types

 Generic Methods and Type Inference

 Lambda Expressions and Method References

 Execution Threads and Multi-Threading Java Programs

 ThreadGroup Class and "system" ThreadGroup Tree

 Synchronization Technique and Synchronized Code Blocks

 Deadlock Condition Example Programs

 Garbage Collection and the gc() Method

 Outdated Tutorials

 References

 PDF Printing Version