How to Change Read-Only Status of Files in intellij

Question

I have a Java project and I want to modify it in intellij but I can\'t do it because of this \" read-only file \" or \"file is not writable\"

Answer 1

On your top-left corner in the drop-down where you have Tests,Production,Problems switch/choose from Project or any other directory you've choosen to Packages, you'll have your packages editable, files in the Project folder are not editable although they end with .class extension.