HHA eXchange Software Developer Interview Questions, Process, and Tips

Q1. What is a polymorphism?
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Q2. Can you explain difference between == and euqals()?
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Q3. What is dependency inversion?
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Q4. Can you explain ACID?
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Q5. Please tell me about isolation levels
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It included all aptitude

Contains all pseudo questions related to DSA

Q1. What is a class?
Ans. 
A class is a blueprint for creating objects in object-oriented programming.
• Defines the properties and behaviors of objects

• Can be used to create multiple instances of objects

• Encapsulates data and methods within a single unit
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Q2. What is an object?
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An object is a self-contained entity that consists of data and methods to manipulate that data.
• Objects are instances of classes in object-oriented programming.

• They have attributes (data) and methods (functions) to operate on the data.

• Objects can interact with each other through method calls.

• Example: In a car simulation program, a 'Car' object may have attributes like 'color' and 'speed', and methods like 'accelerate' a
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Q3. How the login page comes when clicks on some webpage icon like facebook?
Ans. 
The login page is displayed when a user clicks on a webpage icon like Facebook by redirecting to a separate login page.
• Clicking on the webpage icon triggers a redirect to the login page

• The login page prompts the user to enter their credentials

• After successful login, the user is redirected back to the original webpage
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Q4. DDL and DML commands
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Q5. Polymorphism and method overriding?
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Q6. Entire opps in java
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Object-oriented programming in Java involves creating classes, objects, inheritance, polymorphism, and encapsulation.
• Classes are blueprints for objects, defining attributes and behaviors.

• Objects are instances of classes, representing real-world entities.

• Inheritance allows a class to inherit attributes and methods from another class.

• Polymorphism enables objects to be treated as instances of their parent class.

• Encapsulat...read more
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First round was Aptitude which was quite easy

Q1. Resume bases Question
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Q2. Question on OOPS
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Q1. Resume and scenario based question
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Q1. Introduce yourself
Ans. 
I am a software developer with 5 years of experience in Java and Python.
• Experienced in Java and Python programming languages

• Worked on developing web applications using Spring framework

• Familiar with Agile development methodologies
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Q2. What challenges do you faced during your project and how you approached them
Ans. 
I faced challenges with integrating third-party APIs and resolved them by thoroughly researching documentation and seeking help from colleagues.
• Integrating third-party APIs required understanding complex documentation

• Encountered issues with data formatting and authentication

• Collaborated with team members to troubleshoot and find solutions
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Q1. Why Amazon Software Developer?
Ans. 
Amazon offers challenging projects, innovative technologies, and a collaborative work environment.
• Opportunity to work on cutting-edge projects like Amazon Web Services (AWS) or Alexa

• Access to vast resources and tools for development

• Collaborative work culture that encourages learning and growth

• Opportunity to impact millions of customers worldwide

• Competitive compensation and benefits package
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Q2. Why do you want to work at amazon ?
Ans. 
I want to work at Amazon because of their innovative culture, vast resources, and opportunities for growth.
• Amazon is known for its innovative culture and cutting-edge technology.

• They have vast resources and a global reach, providing opportunities to work on impactful projects.

• Amazon offers great career growth and development opportunities for software developers.

• I admire Amazon's customer-centric approach and focus on
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Q3. What are your strengths and weakness?
Ans. 
My strengths include problem-solving skills and attention to detail. My weakness is sometimes being too critical of my own work.
• Strengths: problem-solving skills

• Strengths: attention to detail

• Weakness: being too critical of my own work
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Q4. How would you solve?
Ans. 
I would solve the problem by breaking it down into smaller tasks, analyzing requirements, designing a solution, coding, testing, and debugging.
• Analyze requirements thoroughly before starting the development process

• Break down the problem into smaller tasks to make it more manageable

• Design a solution architecture that meets the requirements and is scalable

• Code the solution using best practices and coding standards

• Test th...read more
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Q5. What are the short term and long-term for teame or organisation?
Ans. 
Short term goals focus on immediate tasks and objectives, while long-term goals involve strategic planning and growth.
• Short term goals may include completing a specific project, improving team communication, or implementing a new software feature.

• Long-term goals could involve expanding the team, increasing market share, or developing new products or services.

• Short term goals help keep the team focused and motivated, wh...read more
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Basic aptitude and common CS fundamentals questions.

Share the current technology related topic.

Q1. Question on OOPS
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Q2. Coding questions
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MCQ’s only, DSA and other MCQ 1 hour

Q1. Project related questions
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Q2. Coding problem in any basic programming language
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Q1. General HR and salary discussions
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Q2. Location and other related queries
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