Wizard template and sample code are different.

I’m brand new to Java.
The code line
“class ArrayDemo {“
appears in a tutorial code example.
The template set up by the wizard has these two lines which look like they should serve the same purpose
“package arraydemo;”
“public class Main {“
Can you explain whats going on here?

I'm not sure what environment you're using (Netbeans?, Eclipse?) but if only the class name is different (ArrayDemo vs Main) you should be ok. The Main class has a package declaration too which means you'll have to run the code a little differently but it isn't too bad.

Try out the demo and let us know if you get stuck.