For a few files, sure. Idk how I'd use that on the large corporate Java codebase that I usually work with though. Despite all its memory hogging and unnecessary features, IntelliJ also proves remarkably useful when trying to find anything in these mega projects. Features like ctrl + clicking on a method call to get to its definition (even when it is in a different project that I don't have checked out), the refactoring tools, the debugger, etc are absolutely necessary to get anything done.