Java Tutorials - Herong's Tutorial Examples

∟Synchronization Technique and Synchronized Code Blocks

This chapter provides tutorial notes and tutorial examples on synchronization technique and synchronized code blocks. Topics include what is the synchronization technique; synchronized class methods, instance methods, statement blocks; synchronized banking application sample.

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Why Synchronization Is Needed in Multi-Threading Applications

Synchronization Technique - Lock and Synchronized Code

"synchronized" - How Java Supports Synchronization

BankingThread.java - Synchronization Sample Program

BankingThread.java - Synchronization Sample Program Output

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Conclusion:

• Synchronization is needed in a multi-threading application to ensure that one thread is updating a shared data other threads wait and get the updated value.
• Synchronization uses a lock to represent the shared data to allow each thread to use the lock status to Synchronize with each other.
• Synchronization code block is a unit of code in a thread that requires synchronization on a particular lock.
• More synchronization locks or longer synchronization code blocks slow down application performance.

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

Synchronization Technique and Synchronized Code Blocks - Updated in 2022, by Dr. Herong Yang