Interview Questions and Answers for 'Makemytrip' | Search Interview Question

Interview Questions and Answers for 'Makemytrip' - 5 question(s) found - Order By Newest

Very frequently asked. Favorite question in Walk in Drive of many Indian service companies.

Q1. Difference between TreeMap and HashMap ?

Ans. They are different the way their elements are stored in memory. TreeMap stores the Keys in order whereas HashMap stores the key value pairs randomly.

Sample Code for treemap

Sample Code for hashmap

Help us improve. Please let us know the company, where you were asked this question :

_{Like Discuss Correct / Improve java collections map treemap hashmap treemap vs hashmap Asked in 31 Companies basic frequent}

Try 1 Question(s) Test

Q2. What is a ConcurrentHashMap ?

Core Java

Ans. ConcurrentHashMap is a hashMap that allows concurrent modifications from multiple threads as there can be multiple locks on the same hashmap.

Help us improve. Please let us know the company, where you were asked this question :

_{Like Discuss Correct / Improve java collections hashmap map concurrenthashmap concurrenthashmap concurrency general electric ge Asked in 32 Companies rare}

Q3. Write a method to check if input String is Palindrome?

Core Java

Ans. private static boolean isPalindrome(String str) {

if (str == null)
return false;

StringBuilder strBuilder = new StringBuilder(str);

strBuilder.reverse();

return strBuilder.toString().equals(str);

}

Help us improve. Please let us know the company, where you were asked this question :

_{Like Discuss Correct / Improve java string stringbuilder stringbuilder string class code palindrome Asked in 38 Companies Basic frequent}

Q4. Print natural numbers sequentially with two threads.

Core Java

Ans. http://stackoverflow.com/questions/18799591/print-natural-sequence-with-help-of-2-threads1-is-printing-even-and-2nd-is-pri

Help us improve. Please let us know the company, where you were asked this question :

_{Like Discuss Correct / Improve print natural numbers with two threads multithreading multi threading threads code coding makemytrip.com}

Q5. Find the repeating number using O(n) time and constant space.

Algorithm

Ans. http://www.geeksforgeeks.org/find-duplicates-in-on-time-and-constant-extra-space/

Help us improve. Please let us know the company, where you were asked this question :

_{Like Discuss Correct / Improve algorithm program code coding makemytrip.com}

Search Interview Questions

Help us and Others Improve. Please let us know the questions asked in any of your previous interview.