A typical mistake made by most beginning programming students. What's missing from the following program?

use strict;
use warnings;

    print "Hello";
    print "World\n";

Source code

Hint 1: "Hello World" is two words. Only one word is printed.

Hint 2: The word that's printed is not a real word.

Hint 3: The program prints less than what the programmer wanted.

Hint 4: The program needs a ____________.

Answer: The program prints:

    HelloWorld

The problem is that the programmer didn't print a space between the words.

Main gallery