AFour Technologies Software Developer Interview Questions and Answers

Q1. Why public static use
Ans. 
public static use for accessing methods and variables without creating an object
• Allows access to methods and variables without creating an object

• Useful for utility classes where objects are not needed

• Can be used to create global variables or constants

• Example: Math class in Java has only static methods and constants
Answered by AI
Add your answer
Q2. Why static is use.Pattern question,hshshdhdhxhxhxhxhdhhxjdjdjdjdjnjsjs
Add your answer

Q1. They arrange with under experienced interviewer any one can pass through it
Add your answer

Q1. HR round will honey bath one you as you treat as a king
Add your answer

Q1. Athentication, web api
Add your answer

Q1. Java related question
Add your answer
Q2. Web services related question
Add your answer

Q1. Project related question
Add your answer

Medium level questions from all sectors

Technical MCQ and easy coding questions

Q1. According to resume
Add your answer

Artificial intelligence

Q1. Family background
Add your answer

Intermediate aptitude questions .
No negative marking .
Written test held at JMR infotech

Q1. Mcq and coding questions . Mostly from Java and spring . Coding question is from Array and String (Find frequency )
Add your answer

Q1. After the written test, face to face interview on technical and hr will be there .
Add your answer

Q1. What is Connection pooling
Ans. 
Connection pooling is a technique to manage database connections efficiently, reducing overhead and improving performance.
• Connection pooling maintains a pool of active database connections for reuse.

• It reduces the overhead of establishing a new connection for each database request.

• Example: A web application can reuse connections from the pool instead of opening new ones for each user request.

• Connection pools can be con...read more
Answered by AI
Add your answer
Q2. What is mounting in docker
Ans. 
Mounting in Docker allows you to share files between the host and containers, enabling data persistence and configuration management.
• Mounting can be done using volumes or bind mounts.

• Volumes are managed by Docker and are stored in a part of the host filesystem which is not directly accessible.

• Example of a volume: `docker run -v my_volume:/data my_image`.

• Bind mounts allow you to specify an exact path on the host, e.g., ...read more
Answered by AI
Add your answer
Q3. What is decorators
Ans. 
Decorators are a design pattern in Python that allows modifying the behavior of functions or methods at runtime.
• A decorator is a function that takes another function and extends its behavior without explicitly modifying it.

• Common use cases include logging, access control, and caching.

• Example: @staticmethod and @classmethod are built-in decorators in Python.

• Custom decorators can be created using nested functions.

• Example...read more
Answered by AI
Add your answer
Q4. Shell script question
Add your answer