Given a Spring bean with a method annotated @PostConstruct, what will happen when the bean is created?

medium📝 component behavior Q4 of 15

Spring Boot - Inversion of Control and Dependency Injection

AThe method will be called after dependencies are injected

BThe method will be called before the bean is instantiated

CThe method will be called after the bean is destroyed

DThe method will never be called automatically

Step-by-Step Solution

Solution:

Step 1: Understand @PostConstruct timing
@PostConstruct methods run after dependency injection but before the bean is ready for use.
Step 2: Match lifecycle event with method call
The annotated method is called automatically after dependencies are set, not before instantiation or after destruction.
Final Answer:
The method will be called after dependencies are injected -> Option A
Quick Check:
@PostConstruct runs post-injection [OK]

Quick Trick: @PostConstruct runs after dependencies injection [OK]

Common Mistakes:

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