One nice course free of the internet that I was doing

And was that I already had see the POOJava and I was seing the Java without the POO, and now I realisze that the internet course was all executed inside the main file because it wasn't talking of the Java oriented to objects, becaue I had studied before the Java to POO, and when I would see from the same site the POO he would say about the classes, so the java without the POO will make the code directly in the main, with the POO would came make the classes to make the objects to went inside of the main the object and not al the code with methods and .... the course is in portuguese but my youtube in the video settings let generate subtitle in english, was Java from Guanabara, and me thinking where the classes? Rute Bezerra de Menezes Gondim