[Java] Eclipse shortcuts that make sense when you go back and forth between source code in a project
Ctrl + click open declaration
You can move to the declaration part. It is often used when you want to check the implementation of a method or make changes.
Ctrl + Alt + h Open call hierarchy
You can find out where the focused field, method, etc. are called.
# Related article
[Eclipse shortcut collection that was awesome when I showed it with a doy face in newcomer training --Qiita](https://qiita.com/arai-wa/items/c2eb7387b5bf37b4ace4)