Learn Java from Scratch - A Beginner's Guide - Step 02 - Comparing Lazy Initialization Versus Eager Initialization

The video tutorial explains the differences between lazy and eager initialization in Spring. Lazy initialization occurs when a bean is first used, while eager initialization happens at application startup. Eager initialization is the default setting. The tutorial covers how to implement both types using annotations, discusses error handling, and compares memory consumption. It concludes with recommendations on when to use each type, suggesting eager initialization for most cases and lazy initialization for rarely used beans.

What is the default type of initialization in Spring?

• Lazy initialization

• Eager initialization

• Conditional initialization

• Deferred initialization

How can you implement lazy initialization in Spring?

• By using @Eager annotation

• By using @Lazy annotation

• By using @Conditional annotation

• By using @Deferred annotation

What happens if there is an error during eager initialization?

• The error will be logged but the application will start

• The error will be ignored

• The application will not start

• The application will start with warnings

Which type of initialization is recommended for beans that are rarely used?

• Eager initialization

• Lazy initialization

• Deferred initialization

• Conditional initialization

How does lazy initialization affect memory consumption?

• It doubles memory consumption

• It has no effect on memory consumption

• It decreases memory consumption

• It increases memory consumption