Additionally, you can name your application delegate class whatever you want.

另外，你也可以任意命名你的应用程序委托类。

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By handling these events in your application delegate class, you have an opportunity to respond to them.

通过在应用程序委托类处理这些事件，你就能够响应它们。

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Because our example application included a business delegate class, we placed the validation logic there.

因为示例应用程序包含了一个业务委派类，所以我们在其中放置了验证逻辑。

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