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Most of these tasks are horribly written by some students who have almost zero understanding of real world Java programming.
Moreover they teach newcommers all sorts of bad practices like really bad naming habits, mashing different classes together and wrong usage of programming language components.
Java Iterator
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Dumb challenge. Horrible way to introduce the concept of an iterator and introduces really bad coding practices.
here is problem solution in java programming. https://programs.programmingoneonone.com/2021/02/hackerrank-java-iterator-solution.html
Most of these tasks are horribly written by some students who have almost zero understanding of real world Java programming. Moreover they teach newcommers all sorts of bad practices like really bad naming habits, mashing different classes together and wrong usage of programming language components.
updated solution is here
https://www.thecscience.com/2021/05/HackerRank-java-iterator-problem-solution.html