Deltecs Infotech Interview Questions and Answers

Q1. What is oops concept with real life example
Ans. 
OOPs concept is a programming paradigm based on the concept of objects, which can contain data in the form of fields and code in the form of procedures.
• Encapsulation: bundling data and methods that operate on the data into a single unit. Example: a car object with properties like color and methods like start() and stop().

• Inheritance: allows a class to inherit properties and behavior from another class. Example: a class...read more
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Q2. Real life scenario example of oops
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A real life scenario example of OOPs is modeling a car as an object with properties and methods.
• Create a Car class with attributes like make, model, year, color

• Define methods like start(), accelerate(), brake()

• Instantiate multiple car objects and perform actions on them
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Q3. What is collections
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Collections in Java are classes and interfaces that provide a way to store and manipulate groups of objects.
• Collections provide a way to work with groups of objects in Java

• They include classes like ArrayList, LinkedList, HashMap, etc.

• Collections framework provides interfaces like List, Set, Map, etc.

• Collections offer methods for adding, removing, and accessing elements in a group
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Q1. Tell me about yoursef
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I am a passionate Java developer with 5 years of experience in developing web applications and implementing software solutions.
• 5 years of experience in Java development

• Strong knowledge of web application development

• Experience in implementing software solutions

• Passionate about coding and problem-solving
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Q2. Tell me about ur project
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Developed a web application for online shopping with user authentication and payment gateway integration.
• Used Java Spring framework for backend development

• Implemented RESTful APIs for communication between frontend and backend

• Integrated Stripe API for secure payment processing
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Written test with 16 aptitude and 10 pseudo code

6 questions with moderate level

Q1. Self introduction
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Q2. Resume based questions
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There was total of 40 questions
First 20: Aptitude based topics like time and work, profit and loss, speed and distance
Second 20: Programming MCQs based on C, C++ and python. Task is to guess the correct output and errors.

There were 4 coding questions based on array, 2 SQL queries and one article.
Coding questions were easy for batch 2 but difficult for batch 1. Star patterns are present in batch 1.
SQL queries were easy.
One article (200-300)words. Topics was Google maps.

Q1. Founder came and asked approach I used to solve coding questions in round 2. He then check the output for each question. Then he checked the SQL queries I have written, in which I had write two wrong queri...read more
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Q2. He asked me about different approaches to solve a problem
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Q3. He asked about the project I had done on Java Full stack.
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Q1. What is software development life cycle
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Software development life cycle is a process used by software development teams to design, develop, test, and deploy software.
• SDLC consists of several phases including planning, analysis, design, implementation, testing, and maintenance.

• Each phase has its own set of activities and deliverables that contribute to the overall development process.

• Examples of SDLC models include Waterfall, Agile, and DevOps.

• SDLC helps ensu...read more
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Q2. How do you prioritize and manage task
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I prioritize tasks based on deadlines, importance, and impact on overall goals. I use tools like to-do lists and calendars to stay organized.
• I prioritize tasks based on deadlines, importance, and impact on overall goals

• I use tools like to-do lists and calendars to stay organized

• I communicate with team members and stakeholders to understand priorities and deadlines

• I break down larger tasks into smaller, manageable steps...read more
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Q1. Where do you see your self in next 5 years
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It was about 30 minutes: after the introduction part, the interviewer began discussing my previous work. He asked why I chose the field, how I learned my skills, and what I had been doing professionally. He also inquired about my family, what I could contribute to the company, and my expectations for the role.

At the end of the interview, he assigned me a task to write a blog on the topic "Best lead generation companies." I completed the assignment successfully in 2 days, and after submitting it, The HR department called me with the good news just two days later.

Coding round with 4 coding problem

Q1. Interviewer give coding problems which we have to solved face to face
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Q1. Then question answer regarding coding language and you knowledge regarding programming
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Q1. DSA - Linked List, Array and Strings
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Q1. Why should we hire you
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