This article's example program (see Download) — NumberInput, shown in Figure 1 — is a Swing application that lets you explore several methods for converting textual input to a numerical value.

本文的样例程序(参见下载)——NumberInput，如图1所示，是一个Swing应用程序，该程序考察几种将文本型输入转换为数值的方法。

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Currently, the application focuses on blood donations (you can download the application here), though the program could be used for other donation campaigns or emergency services as well.

目前此应用主要关注于献血领域。(你可以在这里下载此应用link)，当然，此程序也可用到其他东西的捐赠活动或者紧急服务中去。

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Anyone can download the SDK and develop an application, but you have to join Apple's iPhone Developer Program, and Apple is only accepting a "limited" number of applications at the moment.

任何人都可以下载sdk，开发软件，但是你必须参加苹果的iPhone开发人员项目。苹果现在只能接受有限数目的应用软件。

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