Need to Edit Existing Android App
I have very little experience with android apps and had a developer make a simple app for me (it is cost of credit calculator that i will give away for free to help people understand the cost of credit).
When I received the app, I realized that the labels next to two of the input fields in the app were missing. The developer is not responding and I just took a Java course, so I figure I should just make the edits. However, I don't know how to setup the compiler so I can edit and then compile the code as well as emulate an android device on my PC. I'd really appreciate the help. Thanks. Below are the folders I received (just listing from the the root directory):