Most Important String based question for Javascript, Python & Java Developers

 String Question List:

If you want to select on any top company or startup then you should solve these String based problems that is mandatory for tech round interview.

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Reverse a String

Check if a String is a Palindrome

Count the Number of Vowels in a String

Find the First Non-Repeating Character in a String

Check if Two Strings are Anagrams

Check if a String Contains Only Digits

Find the Longest Word in a String

Count the Occurrences of a Character in a String

Capitalize the First Letter of Each Word in a String

Remove Duplicate Characters from a String

Find All Permutations of a String

Longest Palindromic Substring

Implement a String Search Algorithm (Knuth-Morris-Pratt or Rabin-Karp)

Group Anagrams Together

Find the Longest Substring Without Repeating Characters

Convert a String to an Integer (Implement parseInt())

Check if a String is a Valid Number

Minimum Window Substring

Regular Expression Matching

String Compression

Edit Distance (Levenshtein Distance)

Count and Say Sequence

Z-Algorithm for Pattern Matching

Wildcard Pattern Matching

Longest Common Subsequence (LCS)

String Rotation Check

Longest Repeating Substring

Convert Infix Expression to Postfix (or Prefix) Notation

Find All Subsequences of a String

Check if a String is a Valid Palindrome Considering Punctuation and Space 

Other Question List:

Q1)  WAP to print factorial of prime elements of Fibonacci series?

Q2)  WAP to  merge three string into one string where first string contains set of vowel, second string contains 5 consonants and third string contains set of 5 numbers. created string should contains at least one vowel one consonant and one numeric.

s1="aeiou"

s2="klmnp"

s3="56789"

ak5, ak6, ak7,ak8,ak9, ek5,ek6

Q3)  WAP to convert any binary number to decimal binary?

111

Q4)  WAP to find max prime element into two array?

[1,6,9,7]

[2,3,17,5]

17

Q5)  WAP to reverse array elements but reverse only even elements not odd elements?

[2,3,7,9,11,23,22,5]

[22,2]

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