最近直接用ubuntu16.0.4的eclipse进行开发,发觉eclipse的菜单居然消失了，刚开始，以为是权限问题，设置好了权限，好了一两天，接着又出现了问题，上网查原因：

ubuntu 16.04 eclipse not show menu

发觉有两种解决方法：

第一种方法，我的ubuntu没有appearance,所以不行;第二种方法，解决了。

1.

You're only showing the Eclipse window. Apparently,Ubuntu will default to showing the application menu bar in the desktop status bar,instead of the application window. Go to "Settings"->"Appearance"->"Behavior" and change the "Show the menus for a window" setting. Even then,you will only see the menu if you hover the mouse there.

2.

$ initctl restart unity-panelservice