Deprecation of APIs - JDK 5 Documentation v6.0, Java 2 SDK 英文文档

Deprecation of APIs

A deprecated API is one that you are no longer recommended to use, due to changes in the API. While deprecated classes, methods, and fields are still implemented, they may be removed in future implementations, so you should not use them in new code, and if possible rewrite old code not to use them.

Guide

How and When to Deprecate APIs

Java Software