Java skills are not only some of the most sought after but also some of the easiest to learn, and now you can acquire them quickly without taking time off from your current job or going into debt.

This free tutorial is a rundown of the basics of Java syntax, comments, variables, loops, arrays and more. You’ll be able to practice basic Java exercises and take quizzes to test your knowledge.

HackerRank serves as a technical interview platform, but also provides coding practice to over 18 million users. Challenges offered by HackerRank cover topics including algorithms, Java, Python ...