I converted to IDEs when I was working on a humonguous enterprise Java application with thousands of classes, all with similar methods with slightly different s

I converted to IDEs when I was working on a humonguous enterprise Java application with thousands of classes, all with similar methods with slightly different signatures. Also, because of the strong typing, the IDE knows which method is called where, and could thus support refactoring really well. So if I wanted to change the name of the "save" method in one tree of 87 derived classes, but not the other 532 classes that also had a "save" method, then the IDE made that very easy. Of course, it changed the callers, too!