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Technoxander Interview Questions and Answers
Technoxander Interview Experiences
3 interviews found
Anonymous
(2 Questions)
- Q1. 1. Different between HashMap and concurrent HashMap?
- Ans.
HashMap is not thread-safe while ConcurrentHashMap is thread-safe.
HashMap is not thread-safe and can lead to ConcurrentModificationException if modified during iteration.
ConcurrentHashMap allows concurrent read and write operations without the need for external synchronization.
ConcurrentHashMap achieves thread-safety by dividing the map into segments and locking only a portion of the map during write operations.
- Q2. 2. Why we need abstractions?
- Ans.
Abstractions help in simplifying complex systems by hiding unnecessary details and focusing on essential features.
Abstractions help in managing complexity by hiding implementation details and focusing on high-level concepts.
They allow developers to work at a higher level of understanding without getting bogged down in low-level details.
Abstractions promote code reusability and maintainability by encapsulating common fu...
Skills evaluated in this interview
Java Developer Interview Questions asked at other Companies
Selected
I appeared for an interview in Feb 2025.
(1 Question)
- Q1. Basic questions on java
SQL query and Program Coding test
Java Developer Interview Questions asked at other Companies
(3 Questions)
- Q1. Questions on spring security
- Q2. Questions on unit testing
- Q3. Questions on authorizathion and authentication
Java Developer Interview Questions asked at other Companies
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Interview Questionnaire
1 Question
- Q1. Write program fibonacci series, write program using boolean, write class cast exceptn, singleton design pattern(like you have to jvm one have jdk 1.7 and other have jdk 1.8 how many instance created if one...
- Ans.
This interview question covers various topics including programming, design patterns, data structures, and exception handling in Java.
Write a program to generate the Fibonacci series
Write a program using boolean variables
Explain the ClassCastException and how to handle it
Discuss the Singleton design pattern and its implementation with different JDK versions
Explain abstract classes and interfaces in your current project
...
Interview Preparation Tips
Experience: core java , spring, hibernate, jsp, jpa
Skills evaluated in this interview
Aditya Karmarkar
Interview Preparation Tips
Skill Tips: Keep your ears open as they ask what you know but in a manner in which you don't know ( don't expect)
Skills: communication skills, java , database, computer networking
College Name: Vidyalankar Institute Of Technology
Sakthivel B
I appeared for an interview in Jun 2017.
Interview Preparation Tips
Experience: They asked java basics,
what we wrote in resume will ask
about project
Tips: please prepare basics things
Interview Preparation Tips
Experience: I almost sove 130 question
Duration: 2 hours
Total Questions: 150
Round: Group Discussion
Experience: Problem Solving Algorithms
Duration: 3 hours
I applied via Naukri.com and was interviewed in Aug 2018. There were 5 interview rounds.
Interview Questionnaire
4 Questions
- Q1. 1.Core java 2.Spring 3. Hibernate 4. Spring Boot 5. SQL 6. AngularJS
- Ans.
The question is asking about the candidate's knowledge in Core Java, Spring, Hibernate, Spring Boot, SQL, and AngularJS.
Core Java is the foundation of Java programming language.
Spring is a popular framework for building Java applications.
Hibernate is an ORM tool used for mapping Java objects to database tables.
Spring Boot is a framework for building microservices.
SQL is a language used for managing relational databases...
- Q2. 1. How to connect 2 DBs from spring boot application
- Ans.
To connect 2 DBs from a Spring Boot application, configure multiple data sources and use JdbcTemplate or EntityManager for each DB.
Configure multiple data sources in the application.properties file
Create separate configuration classes for each data source
Use JdbcTemplate or EntityManager to interact with each DB
Specify the appropriate data source in the repository or service classes
- Q3. 2. Difference between abstract method implementation and default method
- Ans.
Abstract method implementation is mandatory while default method is optional.
Abstract method has no implementation in the abstract class and must be implemented by the subclass.
Default method has a default implementation in the interface and can be overridden by the implementing class.
Abstract method is used to enforce a contract while default method is used to provide a default behavior.
Example: abstract method - publ...
- Q4. 1. About salary and expectation
Interview Preparation Tips
Experience: Technical written test
General Tips: Terrible interview. HR told to give 11% hike with 6% variable and 5% fixed. I kicked off the company.
Skills: Web Technologies, Java Application Development
Duration: 1-4 weeks
Skills evaluated in this interview
I applied via Campus Placement and was interviewed before Jun 2020. There were 7 interview rounds.
Interview Questionnaire
2 Questions
- Q1. What java
- Ans.
Java is a high-level, object-oriented programming language used to develop applications for various platforms.
Java is platform-independent and can run on any platform with a JVM.
It is used for developing web, mobile, desktop, and enterprise applications.
Java has a vast library of pre-built classes and APIs.
It supports multithreading, exception handling, and garbage collection.
Java is widely used in the industry for its...
- Q2. Why java
- Ans.
Java is a popular, versatile, and reliable programming language used for developing a wide range of applications.
Java is platform-independent, making it easy to write code once and run it on multiple platforms.
It has a vast library of pre-built classes and APIs, making development faster and easier.
Java is highly secure and provides built-in features for encryption and authentication.
It is widely used in enterprise app...
Interview Preparation Tips
Skills evaluated in this interview
vishali ravichandran
I appeared for an interview in Jun 2017.
Interview Questionnaire
2 Questions
- Q1. The questions are about fully java
- Q2. About myself, and something about java, then the questions about general topic
Interview Preparation Tips
Experience: Most of the questions is new for me but I were manage
Tips: Good preparation
Round: HR Interview
Experience: Most of the questions is new for me but I were manage
Tips: Good preparation
College Name: Avvm spc, thanjavur
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