How to import packages in java
I want to import com.google.gson.GsonBuilder into a java file of mine, however, rep.it does have that file. Is there a way to make that package, then import it into my own code
For that you would need to use build tools such as maven or Gradle. Unfortunately, repl.it doesn't support any of them yet. Hopefully, they might add them in the near future. But till then you won't be able to do it.