[troymc]

I made a poster showing how one might write a Hello World program in 39 different programming languages, and even different versions of some common languages like Java:

https://troymcconaghy.blog/2025/01/13/39-hello-world-program...

[pron]

Nice, but as of JDK 25 (the preview JEP 445 has become the permanent JEP 512), the canonical Hello World in Java is:

    void main() {
        IO.println("Hello World");
    }

[saagarjha]

Since it seems like you work on Java, would you mind taking a look at https://bugs.java.com/bugdatabase/view_bug?bug_id=JDK-836673..., where this syntax does not work for shebangs?

[prmoustache]

Not a java developer but why the void? Shouldn't your main function and program return an integer?

[troymc]

Thanks, I made a note to update that someday.

[throwaway150]

Cool poster! If you don't mind me asking, would you share what tools you use to create this poster? You've got syntax highlighting going on there too. What did you use for that?

[iTokio]

You just have to read his blog, it is short and he answered everything.

> he used python and xelatex

> https://github.com/ttmc/hello-world-ways

[realo]

This is super cool! Now someone should make a similar poster with Hello World sent to a serial port.

Bonus points if it is a RS485 port.

Some language that seem to look good might show their true ugly face...

[pmdr]

Objective C is by far the weirdest on that list.

[saagarjha]

Objective-C is basically Java so I wouldn’t call it that weird.

[watersb]

Smalltalk, but in C