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Package Version Identification - JDK 5 Documentation v1.4.0, Java 2 SDK 英文文档

Package Version Identification

Documentation Contents

The versioning feature enables package-level version control so that applications and applets can identify at runtime the version of a specific Java Runtime Environment, VM, and class package.

Package Versioning Specification

• Versioning Specification (HTML, PS, PDF)

Versioning API Reference
(javadoc)

• java.lang.Class
• java.lang.ClassLoader
• java.lang.Package
• java.lang.System

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