Study it carefully, and then run the code in your WTK emulator to view the output if you like.

请仔细研究，如果愿意的话，您也可以在自己的WTK模拟器中运行这段代码以查看输出。

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Once the MIDlet is running the main user interface should appear in your WTK device emulator, as shown in the figures below.

运行了这个MIDlet运行后，在WTK设备模拟器上应该出现主用户界面，如下图所示。

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If you are using an older version of the WTK, which does not include the JSR-238 library, you will need to add the JSR-238 yourself.

如果您现在使用的是WTK的老版本，其中不包括JSR - 238库，您需要自己添加jsr - 238。

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