The easiest way to accomplish the first three is to provide an actionSet, added to a new top-level menu and also accessible from its own toolbar.

完成前面三步最容易的方式是提供一个 actionSet ，它被添加到新的顶级菜单中并且可从它自己的工具栏访问。

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Add two other actions to the same actionSet with labels "Stops HSQLDB database server" and "Starts HSQLDB database server", providing each with a unique action id and implementation class.

向带有标签“Stops HSQLDB database server” 和“Starts HSQLDB database server”的同一个 actionSet 添加另外两个操作，并为每个操作提供惟一的操作 ID 和实现类。

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