Java 教程是为 JDK 8 编写的。本页中描述的示例和实践未利用在后续版本中引入的改进。
The first thing you need is a contract file. You can download and use this very basic sample file named
contract
. Or you can use any other file you like. Just be sure to name the file contract
so it will work with the commands specified in this lesson.
Once you've got the contract file, place it into a JAR file. In your command window type the following:
jar cvf Contract.jar contract
This command creates a JAR file named Contract.jar
and places the contract
file inside it.