日期類的使用      摘要: 對Java基礎類的Date和Calendar類有些生疏了，使用的時候還是現查的javadoc。
隨手記下來吧。  閱讀全文

Java：reflection      摘要: reflection的學習，英文原文已貼過。  閱讀全文

Reflection(轉英文原文)      摘要: The reflection library gives you a very rich and elaborate toolset to write programs that manipulate Java code dynamically. This feature is heavily used in JavaBeans, the component architecture for Java (see Volume 2 for more on JavaBeans). Using reflection, Java can support tools like the ones to which users of Visual Basic have grown accustomed. In particular, when new classes are added at design or run time, rapid application development tools can dynamically inquire about the capabilities of  閱讀全文

關于實現序列化接口的類提示沒有定義serialVersionUID域      摘要: 摘要:在實現序列化接口的類提示沒有定義serialVersionUID域時，警告信息
The serializable class XXX does not declare a static final serialVersionUID field of type long

該信息的原因和在IDE中去掉該警告的方法  閱讀全文

隨機驗證碼      摘要: 摘要:一個生成隨機驗證碼的程序  閱讀全文