J#

It seems there’s a bit of confusion here! There isn’t a programming language called “J#” that is widely recognized or used. It’s possible you might be referring to Java, which has a variant known as “J#”, but it’s not a distinct language.

If you meant to write “Hello World!” in Java (or just plain Java), the code would look like this:

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

This simple program defines a HelloWorld class with a main method, which is the entry point of the Java application. The System.out.println("Hello World!"); line prints “Hello World!” to the console.

If you indeed meant something else or if there’s more context you can provide, feel free to let me know!

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