Java Tutorials - Herong's Tutorial Examples

∟Execution Process, Entry Point, Input and Output

This chapter provides tutorial notes and tutorial examples on Java program execution process. Topics include Java program creation, compilation and execution; the main() method - execution entry point; execution console, input and output data streams.

Creating, Compiling and Executing Java Programs

main() Method - Java Execution Entry Point

Java Execution Console - "in", "out" and "err" Data Streams

Takeaways:

• 3 steps are involved in building a Java application: creating source code, compiling source code and executing the compiled code.
• "public static void main(String[] a)" is the execution entry point when a class is launched in the Java Virtual Machine (JVM).
• JVM provided 3 default I/O data streams to all applications: "in", "out" and "err".

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

Execution Process, Entry Point, Input and Output - Updated in 2024, by Herong Yang