Does Eclipse have a way to search a whole project for some text like Xcode\'s \"find in project\" feature?
You should check out the new Eclipse 2019-09 4.13 Quick Search feature
The new Quick Search dialog provides a convenient, simple and fast way to run a textual search across your workspace and jump to matches in your code.
The dialog provides a quick overview showing matching lines of text at a glance.
It updates as quickly as you can type and allows for quick navigation using only the keyboard.
A typical workflow starts by pressing the keyboard shortcut Ctrl+Alt+Shift+L
(or Cmd+Alt+Shift+L on Mac).
Typing a few letters updates the search result as you type.
Use Up-Down arrow keys to select a match, then hit Enter to open it in an editor.