After you get the basics (others covered that), what I like to do when learning a new language is make a series of simple games.

Things like:

• Guess the number (user input)
• Hangman (more complex user input)
• Pong (even more complex user input, graphics, hit detection, etc)
• Space invaders (arrays, ways to increase difficulty including qty and speed)

Etc. Good luck and enjoy learning!