my question today is if there is a way for IntelliJ to build with the current class file I have Instead of always going into the configurations setting and changing the Main class from there.
Ok I now understand want you want :)
I hope this image helps.
You can create a run configuration for each class with a main method. In this example we have three classes Main1, Main2 and Main3 which you can see on the left in the image. So I created three run configurations called Main1, Main2 and Main3 which have the corresponding classes set as Main class.
You can add multiple run configurations by clicking on the green plus.
In the toolbar you then can choose the run configuration which you want to run.
EDIT:
You can just make a right click on the main method and choose the option run
. I guess that is what you want :)