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Yup... if you're familiar with the old class-based approach, the new style raises more questions than it answers. Did they really turn "everything-is-an-object"-Java into a procedural language? What do you do if you do need command line arguments? Etc.

(I somehow mostly avoided learning Java, and my last passing contact with it was 20+ years ago, so these are honest questions).

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The class is still there, implicitly.

The main function can be written with `String[] args` if you need it.

This is a decent summary of the changes:

https://www.happycoders.eu/java/main-method/

Further details:

https://openjdk.org/jeps/512

And now to know what it does you have to read a book.

The IO class is good. The rest is information hiding. Now if you could write anything else in Java in this form,it would make sense.

,,Since an implicitly declared class cannot be accessed from outside, it must always contain a main method.’’

This looks like a hack just for the main file, it would have been good if these functions can be called from other files.

If it's anything like dotnets change the void params are still a valid input.

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