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Challenge/hack other contestants’ solutions. Codewars is where developers achieve code mastery through challenge. When you are developing a Coding Challenge for a specific programming language, designing a challenge to demonstrate knowledge of core and key language features and strengths is the main priority. Pangram example: The quick brown fox jumps over the lazy dog, Two strings are called anagrams if they contain same set of characters but in different order. Note: The code is making use of the codeguppy specific function println() to print the results. It’s a new style of learning that’s definitely worth checking out. HackerRank is a leading platform for competitive programming challenges where you … Apart from this, participants can solve the problems in various computer science domains like algorithms, machine learning, and artificial intelligence. Codewars provides a large collection of Java challenges directly in the online IDE provided. 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