Top TCS Java Interview Questions and Answers for freshers and Experienced | Code Decode

In this video of code decode we have covered TCS Java interview questions and answers most asked

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What are the Features of Spring

Inversion of Control (IoC): Spring's IoC container manages the instantiation, configuration, and assembly of application objects/Beans. This promotes loose coupling and makes the code more modular and maintainable.

Dependency Injection (DI): DI is a way to implement IoC that allows you to inject dependencies (e.g., objects, services) into a component rather than letting the component create them. This makes the application more flexible and easier to test.

Aspect-Oriented Programming (AOP): AOP allows you to segregate cross-cutting concerns such as logging, security, and transaction management. Spring AOP integrates seamlessly with the core Spring framework.

Data Access: Spring provides support for working with databases through its JDBC (Java Database Connectivity) and Object-Relational Mapping (ORM) modules. It offers integration with popular ORM frameworks like Hibernate, JPA, and JdbcTemplate.


Transaction Management: Spring provides declarative transaction management, allowing you to manage transactions without writing low-level code. It supports both programmatic and declarative approaches to handling transactions.

Spring Security: This module provides comprehensive security features for authentication, authorization, and protection against common security vulnerabilities in web applications.

Spring Data: Spring Data simplifies the interaction with databases by providing a consistent and unified API for various data sources, including relational databases, NoSQL databases, and more.

Spring Integration: This module facilitates the integration of disparate systems and applications through messaging, event-driven architectures, and other integration patterns.

Spring Cloud: Spring Cloud provides tools and libraries for building distributed systems and microservices-based applications, including service discovery, configuration management, circuit breakers, and more.



How do you manage memory leakage in your java application

In Java, the memory leak is a situation when the garbage collector does not recognize the unused objects and they remain in the memory indefinitely that reduces the amount of memory allocated to the application. Because the unused objects still being referenced that may lead to OutOfMemoryError.

Symptoms of Memory Leak

The performance of the application consistently decreases.
The usage of memory increases during the life span of an application.


What are the different types of Dependency Injection in Spring?

Setter Injection:

Setter injection involves providing the dependencies through setter methods of the class. In this approach, the class provides setter methods for each dependency it requires, and the Spring container uses these setter methods to inject the required dependencies. Setter injection is useful for optional dependencies or when you need to change the dependencies of a bean after its creation.

Method Injection:

Method injection involves providing the dependencies through special methods of the class. Instead of using constructor or setter injection, you can annotate a method with @Autowired to indicate that it requires the dependency. The Spring container will invoke this method and provide the necessary dependency when creating the bean.






Most Asked Core Java Interview Questions and Answers:    • Core Java frequently asked Interview ...  
Advance Java Interview Questions and Answers:    • Advance Java Interview Questions  

Java 8 Interview Questions and Answers:    • Java 8 Interview Questions(New Features)  

Hibernate Interview Questions and Answers:
   • Hibernate Interview Questions Java  

Spring Boot Interview Questions and Answers:
   • Advance Java Interview Questions  

Angular Playlist:    • Angular Course Introduction || Angular 8  
SQL Playlist:    • SQL Interview Questions and Answers  

GIT:    • GIT  

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