Is there a way to find/replace across an entire project in Eclipse?

How do I do a global search and replace in Eclipse?

When you do a text-based search in eclipse (using the flashlight button at the top of the screen and selecting the right tab) there's a "Replace..." button at the bottom of the dialog. Press that, instead of search, and you can do a global find and replace.

How do I search for text in an entire project in Eclipse?

Ctrl + Alt + G can be used to find selected text across a workspace in eclipse. Show activity on this post. Press Ctrl + H to bring up the search that includes options to search via project, directory, etc.

Search->File menu (also accessible using Ctrl+H, then navigate to File tab), enter the text to search for, hit the Replace... button which will give you another dialog where you can replace text.