What is difference between hashmap and arraylist?


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More Data Structures Interview Questions

Explain how to find 3rd element from end in a linked list in one pass?

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How do you find the complexity of a bubble sort?

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What is the difference between Array and LinkedList?

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How do arrays work?

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Differentiate between hashset and treeset.

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What is meant by balanced binary tree?

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When will you sort an array of pointers to list elements, rather than sorting the elements themselves?

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Explain what is the data structures used to perform recursion?

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Which is better bubble sort or selection sort?

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What is a concurrenthashmap?

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“int a[] = new int[3]{1, 2, 3}” – This a legal way of defining the arrays?

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Is red black tree balanced?

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