JVM Tutorials - Herong's Tutorial Examples

∟Class Class - Class Reflections

This chapter provides tutorial notes and example codes on java.lang.Class class. Topics include Java class reflections and introspection; loading classes using Class.forName(); introspecting class members; array classes; method reflection.

What Is java.lang.Class Class?

forName() Method - Loading Classes

Class Reflection and Introspection

Array Class Introspection

Invoking Methods of Class Instances

Conclusions:

• java.lang.Class is a reflection class of Java classes.
• The Class.forName() method can be used load classes using the default class loader.
• java.lang.Class offers methods for you to introspect class members.
• java.lang.reflect.Method is a reflection class of Java methods.

Table of Contents

 About This Book

 Download and Install Java SE 1.6 Update 2

 java.lang.Runtime Class - The JVM Instance

 java.lang.System Class - The Operating System

 ClassLoader Class - Class Loaders

►Class Class - Class Reflections

 Sun's JVM - Java HotSpot VM

 JRockit JVM 7.0 by BEA Systems

 JRockit JVM 8.0 by BEA Systems

 Memory Management Rules and Tests

 Garbage Collection Tests

 Stack Overflow Tests

 Thread Testing Program and Result

 StringBuffer Testing Program and Result

 CDS (Class Data Sharing)

 Micro Benchmark Runner and JVM Options

 Micro Benchmark Tests on "int" Operations

 Micro Benchmark Tests on "long" Operations

 Micro Benchmark Tests in JIT Compilation Mode

 Micro Benchmark Tests on "float" and "double" Operations

 References

 PDF Printing Version