Learn Java from Scratch - A Beginner's Guide - Step 03 - Exploring Java Spring Framework Bean Scopes - Prototype and Sin

The video tutorial explains how to create and manage Spring beans using Eclipse. It covers the creation of normal and prototype classes, highlighting the differences in their behavior. The tutorial delves into the concept of bean scopes in Spring, focusing on Singleton and Prototype scopes, and briefly touches on web application-specific scopes like request, session, application, and websocket. Additionally, it compares Java Singleton with Spring Singleton, emphasizing the differences in their definitions and usage.

What is the purpose of using the @Scope annotation in Spring?

• To set the version of the application

• To specify the package of a class

• To define the lifecycle of a bean

• To import external libraries

How does a prototype bean differ from a singleton bean in terms of instance creation?

• Singleton beans are never created

• Prototype beans are created every time they are requested

• Prototype beans are created once per application

• Singleton beans are created every time they are requested

Which scope would you use for a bean that should be created once per HTTP request in a web application?

• Session

• Request

• Prototype

• Singleton

In Spring, what is the default scope of a bean if no scope is specified?

• Session

• Prototype

• Singleton

• Request

Which of the following is NOT a web-specific scope in Spring?

• Application

• Request

• Prototype

• Session

What is a key difference between Java Singleton and Spring Singleton?

• Java Singleton is per Spring IOC container

• Spring Singleton is per Java Virtual Machine

• Spring Singleton is per HTTP request

• Java Singleton is per Java Virtual Machine

Why is it important to understand the difference between Java Singleton and Spring Singleton?

• To ensure correct bean instantiation in a multi-container environment

• To improve application performance

• To simplify code maintenance

• To reduce memory usage