Dive into Java-specific coding challenges on HackerRank, covering a wide range of topics from data structures to algorithms. Sharpen your Java skills while tackling real-world problems.

Java, Python, SQL, C++, and JavaScript programming skills are most in demand in the workplace, says the HackerRank developer skills report.

Adding to the bevy of existing programming language popularity indices, developer careers company HackerRank is incorporating the job interview process into the mix.