[Solved] How do you correctly define a Spring Bean using Java-based configuration? — Ans: @Bean public MyService myService() { return new MyService(); } | Spring Boot

Spring Boot - Inversion of Control and Dependency Injection

How do you correctly define a Spring Bean using Java-based configuration?

A@Bean public MyService myService() { return new MyService(); }

B@Component public MyService myService() { return new MyService(); }

C@Service public void myService() { return new MyService(); }

D@Bean public void myService() { new MyService(); }

Step-by-Step Solution

Solution:

Step 1: Recognize Java configuration style
Java config uses @Bean on methods returning the bean instance.
Step 2: Check method signature and return type
The method must return the bean object; void return type is invalid.
Final Answer:
@Bean public MyService myService() { return new MyService(); } -> Option A
Quick Check:
@Bean methods must return the bean instance [OK]

Quick Trick: @Bean methods return the bean instance [OK]

Common Mistakes:

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How do you correctly define a Spring Bean using Java-based configuration?