Now that we have a skeleton class for our mediation we can begin to populate it with code, starting with a package and some import statements that we will make use of later (see Listing 1 below).

现在，我们已经获得了中介的框架类，接下来可以开始对其填充代码了，请首先添加我们将稍后使用的包和一些导入语句(请参见下面的清单1)。

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Add the following package statement and import statements to the file.

将下面的软件包语句和导入的语句添加到该文件中。

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The class is moved to the new package physically, and all references to it in the code - such as import statements - are changed to refer to its new location.

该类将被物理地移到新包中，并且代码中对它的所有引用—例如import语句—将改为引用其新位置。

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