Why does this code using random strings print "hello world"?

Java:

java

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

PHP:

php

<?php
echo "Hello, world!";
?>

Python:

python

print("Hello, world!")

Ruby:

ruby

puts "Hello, world!"

JavaScript:

javascript

console.log("Hello, world!");

These are the basic "hello world" programs in each of the mentioned programming languages. When you run these programs, they will output "Hello, world!" to the console or standard output. This is a common starting point for learning and demonstrating the syntax of different programming languages.