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Strings interview questions

Strings interview questions.

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  • 1.

    What is String in Data Structures?

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  • 2.

    What is the difference between Strings vs. Char arrays?

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  • 3.

    What is a null-terminated String?

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  • 4.

    What is strings mutability and immutability?

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  • 5.

    Reverse a String using Stack

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  • 6.

    Mentions some pros and cons of immutable vs mutable Strings

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  • 7.

    Remove Invalid Parentheses

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  • 8.

    How to check if two Strings (words) are Anagrams?

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  • 9.

    How to check if String is a Palindrome?

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  • 10.

    Reverse the ordering of words in a String

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  • 11.

    Find all the Permutations of a String

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  • 12.

    Why is char[] preferred over String for passwords?

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  • 13.

    What are some limitations of Ropes?

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  • 14.

    What are Pascal Strings?

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  • 15.

    Explain Boyer-Moore Algorithm with Example

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  • 16.

    What are some advantages of Rope data structure?

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  • 17.

    What is Rope Data Structure is used for?

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  • 18.

    Check for balanced parentheses in linear time using constant space

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  • 19.

    What are the main differences between the Knuth-Morris-Pratt search algorithm and the Boyer-Moore search algorithm?

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  • 20.

    When is Rabin-Karp more effective than KMP or Boyer-Moore?

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  • 21.

    Compare Strings vs Ropes from the Performance Analysis

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  • 22.

    When to use Ropes over StringBuilders?

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  • 23.

    What's the rationale for null terminated strings?

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  • 24.

    Explain Knuth-Morris-Pratt (KMP) Algorithm in Plain English

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  • 25.

    Find all the repeating substrings in a given String (or DNA chromosome sequence)

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