Deloitte Digital Software Developer Interview Questions and Answers

Q1. Difference between linked list and array list
Ans. 
Linked list is a data structure where elements are stored in nodes with pointers to the next node. Array list is a dynamic array that can grow or shrink in size.
• Linked list allows for efficient insertion and deletion of elements anywhere in the list.

• Array list provides fast access to elements using index, but slower insertion and deletion compared to linked list.

• Example: Linked list - 1 -> 2 -> 3 -> 4 -> 5, Array list
Answered by AI
Add your answer
Q2. Difference between @controller and @ Rest controller
Ans. 
The @Controller annotation is used for traditional MVC controllers, while @RestController is used for RESTful web services.
• The @Controller annotation is used to define a class as a Spring MVC controller, which can handle HTTP requests and return a view.

• The @RestController annotation is used to define a class as a controller for RESTful web services, which can handle HTTP requests and return data in JSON or XML format.

• T...read more
Answered by AI
Add your answer

Q1. String reverse
Add your answer
Q2. Dsa linked lists
Add your answer
Q3. Linked lists reverse
Add your answer
Q4. Map unique elements
Ans. 
Map unique elements in an array of strings
• Create a map to store unique elements

• Iterate through the array and add each element to the map as a key

• Retrieve the keys of the map to get the unique elements
Answered by AI
Add your answer
Q5. Sets find elements in set
Ans. 
Sets are data structures that store unique elements and can be used to efficiently find elements in the set.
• Sets do not allow duplicate elements, so each element in a set is unique.

• To find elements in a set, you can use the 'has' method to check if a specific element is present in the set.

• Sets are commonly used in programming for tasks like removing duplicates from a list or checking for the presence of specific elemen
Answered by AI
Add your answer

Basic aptitude questions held online with their portal

Broad coding and basic oops

Q1. About hr questions
Add your answer

There are some general programming questions as well as the reasoning problems in the first round they are likely to be easier.

Q1. Derive this problem statement
Add your answer
Q2. How do you approach this problem
Add your answer
Q3. Tell me more about the project in your resume
Add your answer

Q1. Application level questions
Add your answer
Q2. Role related questions
Add your answer

Q1. Tell me about yourself
Add your answer
Q2. Tell me about your family
Add your answer
Q3. Tell me about your hobbies apart from technical things
Add your answer

Q1. Oops related questions
Add your answer
Q2. How you can handle exceptions in case of inheritance
Ans. 
Exceptions in inheritance can be handled by using try-catch blocks in the derived class.
• Use try-catch blocks in the derived class to catch exceptions thrown by the base class methods.

• Handle exceptions specific to the derived class in the catch block.

• Consider using super() to call the base class constructor within the try block.

• Avoid catching general exceptions unless necessary to maintain code clarity.

• Ensure proper exc...read more
Answered by AI
Add your answer
Q3. Collections questions
Add your answer
Q4. Live coding based on the answers you give
Add your answer
Q5. Your current project and how you handled difficulties in that
Add your answer

First Round was Aptitude and coding both together. Logical Reasoning, Blood Relations. In coding part there were 3 questions of easy level . Topics were array , string.

Q1. In Interview, They ask questions related to the subjects like OS, DBMS, CN and the basic concept knowledge of student is checked. They ask 1 question to code and level is easy-medium level. You have to tel...read more
Add your answer
Q2. Input- aabbbc Output-a2b3c1 This code was asked.
Add your answer

Q1. Introduction, family background, behaviour questions
Add your answer

Q1. Difference between comparator and comparison
Add your answer
Q2. Implement run time polymorphism
Add your answer
Q3. What is stack with an example
Add your answer