Asked in QMetry
LinkedList vs ArrayList Comparator in java Explain the logic for creating a utility to validate XML.(You can explain how you can use Stack to write the logic) Provide a HLD for a URL shortner

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Comparison between LinkedList and ArrayList, explanation of Comparator in Java, logic for XML validation using Stack, and HLD for URL shortener.
LinkedList is a doubly linked list while ArrayList is a ...read more
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