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4W Technologies Software Developer Interview Questions, Process, and Tips
Top 4W Technologies Software Developer Interview Questions and Answers
- Q1. what is Oops concept . What Type of overloading in java.
- Q2. What is constructor.
- Q3. What is class in java
4W Technologies Software Developer Interview Experiences
8 interviews found
Karthick R
I applied via Walk-in and was interviewed in Jun 2024. There was 1 interview round.
Topic about Atitude there was no optiions
Interview Preparation Tips
Anonymous
I applied via Approached by Company and was interviewed in Nov 2023. There were 3 interview rounds.
Writing 4 out of 5 coding questions in any programming language.
Difficulty level: easy
(1 Question)
- Q1. Explaining your projects to HR
Interview Preparation Tips
Selected
I applied via Naukri.com and was interviewed in Sep 2023. There were 2 interview rounds.
Interview was good it takes 1 hour
(1 Question)
- Q1. What is java what is oops what is collection framework
- Ans.
Java is a popular programming language known for its portability and versatility. OOPs is a programming paradigm based on objects and classes. Collection framework provides a set of classes and interfaces for handling collections of objects.
Java is a high-level, object-oriented programming language developed by Sun Microsystems.
OOPs (Object-Oriented Programming) is a programming paradigm based on the concept of objects...
Skills evaluated in this interview
I applied via Walk-in and was interviewed in Dec 2023. There were 2 interview rounds.
10 question ( Fill Up Type )
10 java questions ( MCQ TYPE )
4W Technologies interview questions for designations
Anand S
I applied via Indeed and was interviewed in Jul 2023. There were 4 interview rounds.
(1 Question)
- Q1. Intro your self and technical skills
They give 5 questions for java
(1 Question)
- Q1. About my project
I applied via Indeed and was interviewed in Jan 2023. There were 3 interview rounds.
They gave me some coding questions and asked me to code for those.In this there was 5 coding questions based on string ,array, matrix like that.
(2 Questions)
- Q1. They asked me to come after two weeks .
- Q2. It was coding question on topics Arrays, fibonacci series ,matrix.
Software Developer Jobs at 4W Technologies
Selected
I applied via Recruitment Consulltant and was interviewed in Feb 2023. There were 4 interview rounds.
Basics java coding test
Array
String
Easy questions
(3 Questions)
- Q1. What is Oops concept . What Type of overloading in java.
- Ans.
Oops concept is a programming paradigm that focuses on objects and their interactions.
Oops concept stands for Object-Oriented Programming
It emphasizes on the use of objects to represent real-world entities
It includes concepts like encapsulation, inheritance, polymorphism, and abstraction
Objects have properties (attributes) and behaviors (methods)
Objects can interact with each other through methods and messages
Java is a...
- Q2. What is constructor.
- Ans.
A constructor is a special method that is called when an object is created to initialize its properties.
Constructors have the same name as the class they belong to.
They can take parameters to set initial values for the object's properties.
If a class does not have a constructor, a default constructor is provided by the compiler.
Constructors can be overloaded to provide multiple ways to create objects of the same class.
E...
- Q3. What is class in java
- Ans.
A class in Java is a blueprint for creating objects that have properties and methods.
A class is a user-defined data type that encapsulates data and behavior.
It is used to create objects that can interact with each other.
A class can have fields, constructors, and methods.
Fields are variables that hold data.
Constructors are used to initialize objects.
Methods are functions that perform actions on objects.
Example: class Ca...
Interview Preparation Tips
My dream working in it job sir.
Sir share coding test questions.
Skills evaluated in this interview
I applied via Naukri.com and was interviewed in Jul 2022. There were 5 interview rounds.
Basic program from any language
They will ask questions from Cachc... The language came from my Grandfather kG days
(1 Question)
- Q1. Technical round conducted by technics team
(1 Question)
- Q1. Worst experience. If boys went for HR round they came out after 15 - 20 mins.. but for myself it's done in 5 mins. For this 5 mins i have waited 4 hours. Really i got mad & planned to kick off the intervi...
(1 Question)
- Q1. Finally they will ask project & rejected in final round
Interview Preparation Tips
Interview questions from similar companies
I applied via Newspaper Ad and was interviewed before Jun 2021. There were 3 interview rounds.
(1 Question)
- Q1. Basic questions of java.
(1 Question)
- Q1. Intro and other hr related questions.
Interview Preparation Tips
SAMKIT JAIN
I appeared for an interview in Aug 2017.
Interview Questionnaire
7 Questions
- Q1. Implement Merge Sort.
- Ans.
Merge Sort is a divide and conquer algorithm that sorts an array by dividing it into two halves, sorting them separately, and then merging the sorted halves.
Divide the array into two halves
Recursively sort the two halves
Merge the sorted halves
- Q2. Given a BST containing distinct integers, and a number ‘X’, find all pairs of integers in the BST whose sum is equal to ‘X’.
- Ans.
Find pairs of integers in a BST whose sum is equal to a given number.
Traverse the BST and store the values in a hash set.
For each node, check if (X - node.value) exists in the hash set.
If yes, add the pair (node.value, X - node.value) to the result.
Continue traversal until all nodes are processed.
- Q3. Given a set of time intervals in any order, merge all overlapping intervals into one and output the result which should have only mutually exclusive intervals.
- Ans.
Merge overlapping time intervals into mutually exclusive intervals.
Sort the intervals based on their start time.
Iterate through the intervals and merge overlapping intervals.
Output the mutually exclusive intervals.
Example: [(1,3), (2,6), (8,10), (15,18)] -> [(1,6), (8,10), (15,18)]
- Q4. What are the different types of hashing? Suggest an alternative and a better way for Linear Chaining.
- Ans.
Different types of hashing and alternative for Linear Chaining
Different types of hashing include division, multiplication, and universal hashing
Alternative for Linear Chaining is Open Addressing
Open Addressing includes Linear Probing, Quadratic Probing, and Double Hashing
- Q5. Implement AVL Tree.
- Ans.
An AVL tree is a self-balancing binary search tree where the heights of the left and right subtrees differ by at most one.
AVL tree is a binary search tree with additional balance factor for each node.
The balance factor is the difference between the heights of the left and right subtrees.
Insertion and deletion operations in AVL tree maintain the balance factor to ensure the tree remains balanced.
Rotations are performed ...
- Q6. Minimum number of squares whose sum equals to given number n.
- Ans.
Find the minimum number of squares whose sum equals to a given number n.
Use dynamic programming to solve the problem efficiently.
Start with finding the square root of n and check if it is a perfect square.
If not, then try to find the minimum number of squares required for the remaining number.
Repeat the process until the remaining number becomes 0.
Return the minimum number of squares required for the given number n.
- Q7. Insertion sort for a singly linked list.
- Ans.
Insertion sort for a singly linked list.
Traverse the list and compare each node with the previous nodes
If the current node is smaller, swap it with the previous node
Repeat until the end of the list is reached
Time complexity is O(n^2)
Interview Preparation Tips
Experience: There were 2 coding questions (no penalty for wrong submission) and 20 Multiple Choice Questions(with negative marking). We were given 90 minutes to solve them. MCQs were based on Data Structures, OS, CN, C outputs, OOP etc.
Tips: Experience in Competitive Programming might help in solving coding questions. No constraints were mentioned and detailed Instructions related to problem were stated vaguely. So code carefully.
Duration: 1 hour 30 minutes
Total Questions: 22
Round: Technical Interview
Experience: The interviewer asked me to introduce myself and a brief introduction of the projects that I have done. She first asked me questions related to my project. After that she moved on to the data structures part.
Tips: Take your time to approach the problems and if the question is not clear ask the interviewer to explain it again.
Round: Technical Interview
Experience: The interviewer asked me about how my previous round went. After that, he asked me to introduce myself and a brief introduction of the projects that I have done. He first asked me a few questions related to my project. Then he moved on to the data structures part. In this round the interviewer gave me strict time limit for coding the solution on paper for each problem and as soon as I was done coding he gave me 2-3 minutes every time to find errors and debug my code.
Tips: Do not panic even if the interviewer sets time limit while solving problems. If the question is not clear ask the interviewer to explain it again.
College Name: The LNM Institute Of Information Technology, Jaipur
Skills evaluated in this interview
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4W Technologies Software Developer Interview Process
based on 8 interviews
3 Interview rounds
- Resume Shortlist Round
- Coding Test Round
- HR Round
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4W Technologies Software Developer Reviews and Ratings
based on 6 reviews
Rating in categories
|
Software Engineer
35
salaries
|  ₹1.7 L/yr - ₹6 L/yr |
|
Software Developer
20
salaries
| ₹1.5 L/yr - ₹3.1 L/yr |
|
Softwaretest Engineer
8
salaries
| ₹1 L/yr - ₹4.4 L/yr |
|
HR Executive
5
salaries
| ₹1.8 L/yr - ₹3 L/yr |
|
Software Testing Engineer
5
salaries
| ₹1.8 L/yr - ₹4 L/yr |
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