您的文件包然后写出其具体功能(至少要20个字)。尽量不要让站长把时间都花费在为您-Your package and then write their specific functions (at least 20 words). As far as possible not to let the station to the time you spent on
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有关JAVA 容器 监听类和 布局管理器的例子-GUI graphical interface to support the instrument on the JAVA classes and monitor the container layout manager example