首先，我们必须处理类和文件层。

First, we must work at the class and file level.

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结构类，处理类或对象的组合。

Structural, which deal with the composition of the classes or objects.

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要避免输入并自动处理类路径有更好的方法。

There are better ways to automate classpaths and avoid typing.

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We have historically developed regulations that deal with these problems.

有关机构已经制定了,处理这类问题的监管方法

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