Why is arraylist not thread safe?


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More Data Structures Interview Questions

Which one is the simplest sorting in data structure?

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I am given a sequential algorithm that does a routine search on an unordered list. N = 20. The probability that the value x does NOT appear in the list is exactly 60%, and the probability that x DOES appear is 40%. The 3 questions that I could not get were: A) What is the avg number of element comparisons performed when n = 20 and x does NOT appear in the List. (my answer was 20, is this correct?) B) What is the avg number of element comparisons peformed when n = 20 and x DOES appear in the list? C) What is the avg number of element comparisons performed when n = 20. This should be a single number answer they said.

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Can we insert null in hashset?

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How can I learn data structures?

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Which is the best book for data structures and algorithms?

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Define collision in hashing?

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How can we reverse a singly linked list?

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What is linked hash set?

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Which is best array or linked list?

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Given M x N matrix with sorted elements row wise and column wise, find elements?

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How do stacks work?

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What is huffman’s algorithm?

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