Java Tutorials - Herong's Tutorial Examples

∟Primitive Data Types and Literals

This chapter provides tutorial notes and example codes on primitive data types and literals. Topics include 8 primitive data types; storage size of each data type; format rules on source code literals for each data type; example Java programs on primitive types.

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

Conclusion:

• Java supports 8 primitive data types: byte, short, int, long, char, float, double, boolean.
• "byte", "short", "int" and "long" can be used to represent signed integers in different ranges.
• Default data type is "int" for integer literals.
• Default data type is "double" for floating-point literals.
• Hex floating-point literals can be used to represent a particular floating-point value accurately.

Table of Contents

 About This Book

 JDK - Java Development Kit

 Execution Process, Entry Point, Input and Output

►Primitive Data Types and Literals

 Control Flow Statements

 Bits, Bytes, Bitwise and Shift Operations

 Managing Bit Strings in Byte Arrays

 Reference Data Types and Variables

 Enum Types and Enum Constants

 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

 Java Modules - Java Package Aggregation

 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

 Assert Statements and -ea" Option

 Annotation Statements and Declarations

 Java Related Terminologies

 Archived Tutorials

 References

 Full Version in PDF/EPUB

Primitive Data Types and Literals - Updated in 2022, by Dr. Herong Yang