This is the old 1.x version of JavaIDEdroid, which is no longer maintained.
Use the new 2.x version instead:
https://play.google.com/store/apps/details?id=ch.tanapro.JavaIDEdroid
这是旧的的1.x版本JavaIDEdroid，不再保留。
使用新的2.x的版本，而不是：
https://play.google.com/store/apps/details?id=ch.tanapro.JavaIDEdroid

2015-12-22
This app is not developped any further.
Get the new JavaIDEdroid 2.1'.0 app:
https://play.google.com/store/apps/details?id=ch.tanapro.JavaIDEdroid