Samin Tekmindz India Software Engineer Interview Questions and Answers

Q1. Tell me about yourself?
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Q2. What are your strengths and weaknesses?
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Q3. What dou you know about our organisation?
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Q4. What are you hobbies and interests?
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I enjoy coding, hiking, and photography, which help me unwind and fuel my creativity outside of work.
• Coding personal projects, like a weather app using React.

• Hiking in local trails, exploring nature and staying active.

• Photography, capturing landscapes and urban scenes on weekends.
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Q5. Do you have any questions?
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Q1. How would you compare two strings in java?
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Q2. What is point cut?
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Point cut is a term used in Aspect-Oriented Programming (AOP) to define where certain aspects should be applied in the code.
• Point cut specifies the join points in the code where advice should be applied.

• It helps in separating the cross-cutting concerns from the main business logic.

• Examples of point cuts include method executions, field accesses, and exception handling.
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Q3. What is joint point?
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Joint point is a point in the execution of a program where an aspect can be applied.
• Joint point is a specific point in the execution of a program where additional behavior can be introduced.

• It is a point in the code where the aspect code can be weaved in.

• Examples include method calls, exception handling, variable assignments, etc.
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Q4. What docker commands do you know?
Ans. 
I know various docker commands for managing containers and images.
• docker run - to create and start a new container

• docker ps - to list all running containers

• docker stop - to stop a running container

• docker images - to list all available images

• docker pull - to download an image from a registry

• docker build - to build an image from a Dockerfile
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Q5. How do you write a docker file?
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A Dockerfile is a text document that contains all the commands a user could call on the command line to assemble an image.
• Start with a base image using the FROM keyword

• Use the RUN keyword to execute commands in the image

• Use the COPY keyword to add files from your Docker client's current directory

• Use the CMD keyword to specify the command to run when the container starts
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Q6. What is the difference between overloading and overriding in java?
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Q7. Can you tell me about some git commands?
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Q8. How do you handle exceptions?
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Q9. What is the @Restcontroller and @Controller annotations.
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Q10. What is the Spring MVC flow?
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Q11. What is actuator in springboot?
Ans. 
Actuator in Spring Boot is a set of tools and features that help monitor and manage your application.
• Actuator provides endpoints to monitor application health, metrics, info, etc.

• It allows you to interact with your application through HTTP endpoints.

• Examples of endpoints include /actuator/health, /actuator/metrics, /actuator/info.

• Actuator can be customized and secured based on your requirements.
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Q12. Explain about your project technical flow?
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The project involves a web application that streamlines user interactions through a robust backend and responsive frontend.
• User Authentication: Implemented secure login and registration using JWT tokens to manage user sessions effectively.

• RESTful API: Developed a RESTful API using Spring Boot to handle data requests, ensuring smooth communication between frontend and backend.

• Database Integration: Utilized PostgreSQL fo...read more
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Q13. What is the data encapsulation?
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Q14. What is the thread life cycle?
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Q15. What is the difference between sleep and join methods?
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Q16. Why Strings immutable in java?
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Q17. What is the difference between ArrayList and Vector?
Ans. 
ArrayList is not synchronized while Vector is synchronized.
• ArrayList is not thread-safe, while Vector is thread-safe.

• Vector is slower than ArrayList because of synchronization.

• ArrayList is a part of the Java Collection Framework, while Vector is a legacy class.

• Example: ArrayList<String> list = new ArrayList<>(); Vector<String> vector = new Vector<>();
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Q18. What is the Composition in java?
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Q19. Can you override static method in java?
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No, static methods cannot be overridden in Java.
• Static methods belong to the class itself, not to any specific instance of the class.

• Subclasses can have static methods with the same signature as the parent class, but it is not considered overriding.

• Example: Parent class has a static method 'display()', and subclass also has a static method 'display()', this is not overriding.
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Sample java basic problems.
Time complexity of a sample program.
Pseudo code of a given problem.
Implementation of a binary search tree.
Wetting an api using springboot with proper implementation of exception handling.