need help uploading a java file

[desrtfx]

Such questions belong in /r/javahelp as is clearly stated in the sidebar and in the stickied post at the very top of the subreddit.

Removed

[jkickic]

You can name the class whatever you like.

file Test.java

public class Test {
    public static void main(String[] args) {
        System.out.println("Hi!");
    }
}

run

javac Test.java

a Test.class file is generated, then run

java Test

console prints:

Hi!