For example, suppose I want to find all the examples of using the == operator with any string object, so that I can do it. Replace it with .equals () instead. How can I do such a search? Otherwise I would have to choose all my code through line-by-line ... thanks ...
There are no special search capabilities for the operator for eclipse. It does not mean that you can not search for the file for them.
You are probably going to find such issues for you.