StringTokenizer

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Using a StringTokenizer, split the query into parts using the String delimiter. For example, getTokens("level22.lesson13.task01", ".") returns a string array {"level22", "lesson13", "task01"}

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Justin Smith

Level 38 , Greenfield, USA, United States

16 December 2021, 12:19

Not sure why this is rated Medium, it was actually quite easy. It's a very straightforward use of StringTokenizer (although it's worth pointing out that String.split() is more suited for this specific example). But it's a good reminder that even if the task is easy, it's worth checking the solution afterwards to see a more compact way of solving the problem. I had ended up creating an intermediate ArrayList which I now see to be unnecessary.