jar,怎样修改（或添加）它的“Manifest”，使之能够作为较独立的应用程序运行？

[qdzhulf]

java文档这样说：
“Special-Purpose Manifest Headers”
Applications Bundled as JAR Files - version 1.2 only
If you have an application bundled in a JAR file, you need some way to indicate which class within the JAR file is your application's entry point. (Recall that the entry point is the class having a method with signature public static void main(String[] args).)
You provide this information with the Main-Class header, which has the general form:

Main-Class: classname

The value classname is the name of the class that is your application's entry point.

我怎样添加 "Main-Class: classname" 呢？

[leolee]

Manifest-Version: 1.0
Main-Class: packagename.yourmainclass//用你的包名和你包含main方法的类路径

用文本写一个内容为样的文件，命名：MANIFEST.MF。
在你的类的最上层的包（目录）同一层建目录META-INF，在把刚才的文件放进去，就可以了。

[masterz]

Manifest-Version: 1.0//这一行不需要
Main-Class: packagename.yourmainclass//用你的包名和你包含main方法的类路径