Top 30+ Coding Interview Questions with solution 2022 (updated)

Top 30+ Coding Interview Questions with solution 2022 – Here I will discuss you to be good at programming interviews questions. The programming interview is a winnable game. I’ll show you the tricks to quickly solve problems you’ve never seen before.

List of Top 30+ Coding Interview Questions with solution 2022

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1.How is a bubble sort algorithm implemented? (solution)

2.How is a merge sort algorithm implemented? (solution)

3.How do you count the occurrence of a given character in a string? (solution)

4.How do you print the first non-repeated character from a string? (solution) do you convert a given String into int like the atoi()? (solution)

6.How do you implement a bucket sort algorithm? (solution)

7.How do you implement a counting sort algorithm? (solution)

8.How do you remove duplicates from an array in place? (solution)

9.How do you reverse an array in place in Java? (solution)

10.How are duplicates removed from an array without using any library? (solution)

coding interview questions and answers

11.How is a radix sort algorithm implemented? (solution)

12.How do you swap two numbers without using the third variable? (solution)

13.How do you check if two rectangles overlap with each other? (solution)

14. How do you design a vending machine? (solution)

15.How do you find the missing number in a given integer array of 1 to 100? (solution)

16.How do you find the duplicate number on a given integer array? (solution)

17.How do you find duplicate numbers in an array if it contains multiple duplicates? (solution)

18.Difference between a stable and unstable sorting algorithm? (answer)

19.How is an iterative quicksort algorithm implemented? (solution)

20.How do you find the largest and smallest number in an unsorted integer array? (solution)

21.How do you reverse a linked list in place? (solution)

22.How to add an element at the middle of the linked list? (solution)

23.How do you sort a linked list in Java? (solution)

24.How do you find all pairs of an integer array whose sum is equal to a given number? (solution)

coding interview questions with answers

25.How do you implement an insertion sort algorithm? (solution)

26.How are duplicates removed from a given array in Java? (solution) to remove the duplicate character from String? (solution)

28.How to find the maximum occurring character in a given String? (solution)

29.How is an integer array sorted in place using the quicksort algorithm? (solution)

30.How do you reverse a given string in place? (solution)

31.How do you print duplicate characters from a string? (solution)

32.How do you check if two strings are anagrams of each other? (solution)

33.How do you find all the permutations of a string? (Solution)

Additional Reading

  • Print HELLO WORLD in Java without using semicolon – SOLUTION
  • program to Print Hello World – SOLUTION
  • print Fibonacci Series in C – SOLUTION
  • prime number Program – SOLUTION
  • Check Palindrome number program – SOLUTION
  • Armstrong number program – SOLUTION
  • Factorial of a number Program – SOLUTION
  • How to Reverse String in Java – SOLUTION
  • Programs for printing pyramid patterns – SOLUTION
  • Check Leap Year or Not – SOLUTION


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