YASH Technologies Java Developer Interview Questions and Answers

Q1. Tell me about yourself
Ans. 
Experienced Java Developer with a passion for creating efficient and scalable applications.
• Over 5 years of experience in Java development

• Strong knowledge of object-oriented programming principles

• Proficient in Spring framework and Hibernate

• Experience with RESTful web services and microservices architecture

• Familiar with Agile methodologies and version control systems like Git
Answered by AI
Add your answer
Q2. Explain Spring Boot flow in your project
Ans. 
Spring Boot simplifies the development of Java applications by providing a set of tools and conventions.
• Spring Boot eliminates the need for manual configuration by providing defaults and auto-configuration.

• It includes embedded servers like Tomcat, Jetty, or Undertow for easy deployment.

• Spring Boot starters help in quickly setting up dependencies and configurations.

• Annotations like @SpringBootApplication and @RestContro
Answered by AI
Add your answer
Q3. Explain Spring Security flow in your project
Ans. 
Spring Security is used for authentication and authorization in Java projects.
• Spring Security provides authentication and authorization support out of the box.

• It can be configured using XML or Java configuration.

• It supports various authentication mechanisms like form-based, basic, and OAuth.

• Roles and permissions can be defined using annotations or configuration.

• Example: @EnableWebSecurity annotation enables Spring Secu
Answered by AI
Add your answer
Q4. What is @SpringBootApplication
Ans. 
Annotation used to mark a class as a Spring Boot application
• Main annotation in Spring Boot to indicate the starting point of the application

• Combines @Configuration, @EnableAutoConfiguration, and @ComponentScan annotations

• Used to enable the auto-configuration feature in Spring Boot

• Reduces the need for XML configuration in Spring applications
Answered by AI
Add your answer
Q5. Coding Question - Find frequency of all the all the elements in Given String
Ans. 
Find frequency of all elements in a given string
• Create a HashMap to store the frequency of each element in the string

• Iterate through the string and update the frequency in the HashMap

• Convert the HashMap to an array of strings for the final result
Answered by AI
Add your answer

Q1. Introduce yourself
Ans. 
I am a Java Developer with 5 years of experience in developing web applications and implementing software solutions.
• 5 years of experience in Java development

• Proficient in developing web applications

• Skilled in implementing software solutions
Answered by AI
Add your answer
Q2. What is Success according to you
Ans. 
Success is achieving personal goals, feeling fulfilled, and making a positive impact on others.
• Success is subjective and can vary from person to person.

• It is not just about achieving wealth or fame, but also about personal growth and happiness.

• Success can be measured by the impact one has on others and the legacy they leave behind.

• Examples of success include reaching career milestones, maintaining healthy relationships...read more
Answered by AI
Add your answer
Q3. What are your strengths and weekness
Ans. 
My strengths include strong problem-solving skills and attention to detail. My weakness is sometimes being too critical of my own work.
• Strength: Strong problem-solving skills - I enjoy tackling complex problems and finding efficient solutions.

• Strength: Attention to detail - I take pride in producing high-quality work and ensuring accuracy.

• Weakness: Being too critical of my own work - I strive for perfection and sometim...read more
Answered by AI
Add your answer
Q4. Tell me about your Family Background
Ans. 
I come from a close-knit family with a strong emphasis on education and hard work.
• Family is supportive and values education

• Parents are both professionals

• Have a sibling who is also in the tech industry
Answered by AI
Add your answer
Q5. How do you solve any problem
Ans. 
I approach problem-solving by breaking down the issue, researching possible solutions, and testing different approaches.
• Identify the problem and gather all relevant information

• Brainstorm potential solutions and evaluate their feasibility

• Implement the chosen solution and test it to ensure it resolves the problem

• Iterate on the solution if needed to improve its effectiveness
Answered by AI
Add your answer

Q1. Tell me about your project
Ans. 
Developed a web-based inventory management system for a retail company.
• Used Java, Spring Boot, and MySQL for backend development.

• Implemented user authentication and authorization using Spring Security.

• Designed a responsive front-end using HTML, CSS, and JavaScript.

• Integrated barcode scanning functionality for efficient inventory tracking.
Answered by AI
Add your answer
Q2. Class vs object
Ans. 
A class is a blueprint or template for creating objects, while an object is an instance of a class.
• A class defines the properties and behaviors of objects, while an object is a specific instance of a class.

• Classes can be used to create multiple objects with similar characteristics.

• Objects have state (attributes) and behavior (methods) defined by the class.

• Example: Class 'Car' defines properties like 'color' and 'model'...read more
Answered by AI
Add your answer

Q1. Salary expectation
Add your answer
Q2. Date to join?
Add your answer

Q1. Chvvvv vvbbbbb isush shjshs jdudjdj
Add your answer
Q2. Vvvhjjjc hhhjVv hsudjsj hsudjsh hdhdh
Add your answer

Q1. Explain how hashmap internally works
Ans. 
HashMap internally uses an array of linked lists to store key-value pairs.
• HashMap uses hashing to determine the index of the key in the array.

• If multiple keys hash to the same index, a linked list is used to store them.

• When retrieving a value, the key is hashed to find the index and then the linked list is searched for the key.
Answered by AI
Add your answer
Q2. Difference between vector and Arraylist
Ans. 
Vector is synchronized and slower, ArrayList is unsynchronized and faster.
• Vector is synchronized, ArrayList is not.

• Vector is slower due to synchronization, ArrayList is faster.

• Vector is legacy class, ArrayList is part of Java Collections framework.

• Vector doubles its size when full, ArrayList increases by 50%.
Answered by AI
Add your answer

Aptitude questions and some questions from PostgreSQL.

Q1. Java fundamental questions?
Add your answer
Q2. Collection Framework.
Add your answer
Q3. 2-3 easy to medium Coding Questions.
Add your answer
Q4. Questions from Object oriented programming in Java?
Add your answer
Q5. Implementation of HashMap , LinkedList, HashSet, Heap?
Ans. 
HashMap, LinkedList, HashSet, and Heap are data structures commonly used in Java for storing and organizing data.
• HashMap: key-value pairs, uses hashing to store and retrieve elements efficiently (e.g. HashMap)

• LinkedList: linear data structure, elements are stored in nodes with pointers to the next node (e.g. LinkedList)

• HashSet: collection of unique elements, uses hashing to ensure uniqueness (e.g. Hash...read more
Answered by AI
Add your answer

Q1. What is Springboot
Ans. 
Spring Boot is a framework that simplifies the development of Java applications by providing pre-configured settings and tools.
• Spring Boot eliminates the need for manual configuration by providing defaults for most settings.

• It allows developers to quickly set up and run standalone Spring-based applications.

• Spring Boot includes embedded servers like Tomcat, Jetty, or Undertow for easy deployment.

• It promotes convention o...read more
Answered by AI
Add your answer
Q2. Questions on kafka
Add your answer

Good coding questions related array and string

There were 2 coding questions

Q1. Java oops concepts, java 8 features, spring, DB related questions
Add your answer

Q1. Again technical questions also About company? Y bnp? Complex issues that u fixed..
Add your answer

Q1. HR discussion like salary and all
Add your answer