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HCLTech C Developer Interview Questions, Process, and Tips
Top HCLTech C Developer Interview Questions and Answers
- Q1. Singleton class creation (code) what is use of it ?
- Q2. what's function pointer and what's it's signature
- Q3. Implementation of STL libraries any container class ex:- Vector
HCLTech C Developer Interview Experiences
3 interviews found
Anonymous
Selected
I was interviewed in Dec 2024.
20 - MCQ test related C&C++ basic to advance
2 - coding questions -
1) create class which allows only one instance creation at a time if you try to create another before deleting existing object then class should throw exception..
2) find the distance between leftmost string and rightmost string(string's chars order doesn't matter) In a given long shuffled string.
Ex :-
Shuffled string = "xaxxcxbxxxcxxaxxbx"
target string= "abc"
Ans: 3
(Leftmost string is last index 6
Right most is 9 so 9-6=3)
Note:- other chars not necessarily 'x' it can be any
(10 Questions)
- Q1. Explain oops concepts
- Q2. Runtime polymorphism with example
- Q3. Vtable and Vptr working
- Q4. Abstraction and pure virtual function
- Q5. Smart pointers
- Q6. Implementation of STL libraries any container class ex:- Vector
- Q7. Singleton class creation (code) what is use of it ?
- Q8. SQL simple questions
- Q9. What is the use of Mutex
- Q10. Be strong in theoretically (why, what when to use the concept)
Interview Preparation Tips
I applied via Naukri.com and was interviewed in Sep 2024. There was 1 interview round.
(10 Questions)
- Q1. Bit shift 1 by 4 position from LSB
- Ans.
Bit shift 1 by 4 positions from LSB results in 16
Use the left shift operator (<<) to shift the bits by 4 positions
1 << 4 = 16
- Q2. Copy one string to another without using any standard function
- Ans.
Use a loop to copy characters from one string to another
Create two character arrays to store the strings
Use a loop to iterate through each character of the source string and copy it to the destination string
Add a null terminator at the end of the destination string to mark the end of the copied string
- Q3. What's function pointer and what's it's signature
- Ans.
A function pointer is a variable that stores the address of a function. Its signature includes the return type and parameter types of the function.
Function pointers allow for dynamic function calls based on the stored address
Syntax: return_type (*pointer_name)(parameter_types)
Example: void (*funcPtr)(int) = &someFunction;
- Q4. What's polymorphism
- Ans.
Polymorphism is the ability of a function to behave differently based on the object it is called with.
Polymorphism allows objects of different classes to be treated as objects of a common superclass.
There are two types of polymorphism: compile-time (function overloading) and runtime (virtual functions).
Example: A base class Animal with a virtual function 'makeSound'. Subclasses Dog and Cat override 'makeSound' to bark
- Q5. What's compile time polymorphism
- Ans.
Compile time polymorphism is achieved through function overloading and templates in C++.
Compile time polymorphism allows for different functions to be called based on the arguments provided at compile time.
Function overloading is a form of compile time polymorphism where multiple functions have the same name but different parameters.
Templates in C++ allow for generic programming and compile time polymorphism by creatin...
- Q6. Question about default argument
- Q7. Overload + operator to add two complex numbers
- Ans.
Overload + operator to add two complex numbers in C++.
Define a class for complex numbers with real and imaginary parts.
Overload the + operator as a member function of the class.
Return a new complex number with the sum of real and imaginary parts.
- Q8. Order of constructor and destructor. In case virtual function and about virtual destructor
- Q9. Write stack which can work with any data type. Basically template
- Q10. Write code to delete node from linked list
- Ans.
To delete a node from a linked list, update the pointers of the previous node to skip the node to be deleted.
Traverse the linked list to find the node to be deleted
Update the pointers of the previous node to skip the node to be deleted
Free the memory allocated to the node to be deleted
Skills evaluated in this interview
I applied via Naukri.com and was interviewed in Jul 2021. There were 3 interview rounds.
Interview Questionnaire
1 Question
- Q1. Storage classes, simple programs to depict pointer arithmetics, string pointer. What is structure padding? Program on strings without using library functiins. Function pointer
Interview Preparation Tips
C Developer Jobs at HCLTech
What people are saying about HCLTech
Interview questions from similar companies
(2 Questions)
- Q1. Reverse the array of string
- Ans.
Reverse the order of strings in an array
Iterate through the array and swap the elements from start to end
Use two pointers, one at the beginning and one at the end, to swap elements
Example: Input array ['apple', 'banana', 'cherry'] becomes ['cherry', 'banana', 'apple'] after reversing
- Q2. What's Design pattern used in your project?
- Ans.
The design pattern used in my project is the Observer pattern.
Implemented to establish a one-to-many dependency between objects.
Allows multiple objects to listen and react to changes in a subject.
Promotes loose coupling between objects.
Example: Used to notify multiple UI components when a data model changes.
Skills evaluated in this interview
I applied via Naukri.com and was interviewed in Jul 2022. There was 1 interview round.
(1 Question)
- Q1. Threads, Multithreading, Pointers, Dangling pointers, Constructs in C++.
Interview Preparation Tips
- Threads
- Multithreading
- Pointers
- Dangling pointers
- Constructors
- Constructs
- Structures
- Unions
- Classes
- Polymorphism
- Encapsulation
- Functions
- Overloading
- Overriding
- Object Oriented Programming
- Embedded Systems
Selected
I was interviewed in Jan 2025.
Coding skill is very knowledgeable skill
Solving the problem of code assessment with proper logic.
Discuss a topic with many people to identify both positive and negative points
Aptitudes require strong logical thinking skills.
What about codding is telling for code rount
Interview Preparation Tips
key tips for job seekers:
1. Define Your GoalsIdentify what type of job you want and what industries interest you.Set clear, realistic goals for your job search.
2. Update Your Resume & LinkedInTailor your resume to highlight relevant skills and experience.Use keywords from the job description to get past applicant tracking systems (ATS).Keep your LinkedIn profile updated and engaging.
3. Build & Use Your Network.
4.Customize Your ApplicationsAvoid sending generic resumes—personalize each application.
Selected
I applied via Company Website and was interviewed in Dec 2024. There were 5 interview rounds.
An aptitude test is an assessment to measure a candidate mental aptitude/mental ability
(3 Questions)
- Q1. Can you briefly Tell us about yourself?
- Ans.
I am a passionate software developer with 5 years of experience in web development and a strong background in computer science.
5 years of experience in web development
Strong background in computer science
Passionate about software development
- Q2. What do you consider to be your strongest points?
- Ans.
My strongest points include problem-solving skills, attention to detail, and ability to work well in a team.
Strong problem-solving skills - I enjoy tackling complex issues and finding creative solutions.
Attention to detail - I am meticulous in my work and strive for perfection in every task.
Team player - I collaborate effectively with colleagues, communicate openly, and contribute positively to group projects.
- Q3. Which programming languages do you use regularly in your work
- Ans.
I regularly use Java, Python, and SQL in my work as a Software Developer.
Java
Python
SQL
A group discussion is a structured conversation in which participants share their ideas, perspectives, and solutions on a specific topic.
(2 Questions)
- Q1. What motivates you to seek employment at Wipro?
- Ans.
I am motivated to seek employment at Wipro because of their reputation for innovation and opportunities for growth.
Impressed by Wipro's track record of delivering cutting-edge solutions
Excited about the chance to work with a diverse and talented team
Eager to take advantage of Wipro's professional development programs
- Q2. What are your long-term career goals?
- Ans.
My long-term career goal is to become a lead software developer and eventually move into a management role.
Advance to a lead software developer position
Gain experience in managing a team of developers
Develop strong leadership and communication skills
Continue learning new technologies and staying updated with industry trends
Assignment details refer to the specifics of an assignment, including any documents and/or emails or subsequent correspondence between the company and the client.
Interview Preparation Tips
- Your academic achievement
- Responsibility related to your p
- The way you address mistakes at
Selected
I was interviewed in Jan 2025.
It is all concepts for communication skills
This is some role of the coding ,for example: java,html,css,javascript like that coding
(1 Question)
- Q1. Subject based questions they are asking
(1 Question)
- Q1. Overall details asking them
This is observed the skills
Full Stack Software Developer Interview Questions & Answers
LTIMindtree
Abhijit Pal
posted on 21 Dec 2024
I applied via Campus Placement
General aptitude, computer science fundamentals multiple-choice questions, and data structures and algorithms multiple-choice questions were asked.
(2 Questions)
- Q1. Given a string, write a function to reverse the string.
- Ans.
Function to reverse a given string
Create an empty string to store the reversed string
Iterate through the input string in reverse order and append each character to the new string
Return the reversed string
- Q2. Given a sorted array of integers, write a function to perform a binary search to find the index of a target value. If the target value is not found, return -1.
- Ans.
Binary search function to find target value in sorted array
Define function that takes sorted array and target value as input
Initialize variables for start, end, and middle indices
Use while loop to iterate until start is less than or equal to end
(2 Questions)
- Q1. About the company
- Q2. What are three significant achievements in your life?
- Ans.
Graduating with honors, winning a hackathon, volunteering in a developing country
Graduated with honors from university with a degree in Computer Science
Won first place in a hackathon competition by developing a unique and innovative software solution
Volunteered in a developing country to help build schools and provide education to underprivileged children
Selected
I applied via Approached by Company and was interviewed in Dec 2024. There was 1 interview round.
(3 Questions)
- Q1. Project based questions
- Q2. Scenario based question (multithreading and caching related scenarios were asked to me)
- Q3. One coding challenge
Interview Preparation Tips
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HCLTech C Developer Interview Process
based on 2 interviews
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