把CLASS文件打包JAR文件

写好的Java文件在Ｄ盘　如何打包成jar文件　

We want to execute the main method in the class MyClass in the package MyPackage when we run the JAR file.

We first create a text file named Manifest.txt with the following contents:

Main-Class: MyPackage.MyClass

Warning: The text file must end with a new line or carriage return. The last line will not be parsed properly if it does not end with a new line or carriage return.We then create a JAR file named MyJar.jar by entering the following command:jar cfm MyJar.jar Manifest.txt MyPackage/*.classThis creates the JAR file with a manifest with the following contents:Manifest-Version: 1.0
Created-By: 1.6.0 (Sun Microsystems Inc.)
Main-Class: MyPackage.MyClassWhen you run the JAR file with the following command, the main method of MyClass executes:java -jar MyJar.jar

下载jar打包程序，一般jdk自带了

执行：

命令行:jar cvf classes.jar Foo.class Bar.class 也支持通配符. 也可以用IDE来打包,MyEclipse上带有打包选项,其它也应该支持吧.