The important point here is that the constructor form takes only one argument, so you have to enclose the object sequence within parentheses.

这里重要的一点是，构造函数构成中仅有一个变量，因此您必须在括号中包括对象序列。

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Figure 1 shows a constructor with two arguments of type Point and a destructor modeled for the DrawingSurface class of the sample application used here for illustration purposes.

图1展示了为示例应用程序(在这里用于举例)的drawingsurface类建模的带有两个Point类型参数的构造方法和一个析构方法。

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One interesting point is the decision to return any exceptions from this method, as well as any that arise in the constructor, as IOExceptions.

一个有趣的事情是决定将来自此方法的任何异常，以及构造函数中出现的任何异常作为IOException返回。

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