Define a stack?


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More Data Structures Interview Questions

Name few concurrent collection classes?

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Which is faster list or set?

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Which is better arraylist or linkedlist?

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What data type is array?

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How helpful is abstract data type of data structures?

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What is a matrix? Explain its uses with an example

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How do you initialize an arraylist?

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Parenthesis are never needed in prefix or postfix expressions. Why?

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Can hashtable have duplicate values?

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What is a treemap chart?

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Which collection allows null values?

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How do you find the length of an arraylist?

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