Spring Boot FAQ: Top Questions

9. What is the difference between application.properties and application.yml?

Both are used for external configuration in Spring Boot, but differ in syntax and readability. .properties uses key-value pairs while .yml uses indentation-based structure (YAML).

📘 Comparison:

Properties: Easier for simple settings.
YAML: Better for nested configurations.

📥 Example:

# application.yml
server:
  port: 8081

🏆 Expected Output:

Server will start on port 8081.

🛠️ Use Cases:

Use properties for basic setups.
Use YAML for structured and complex configs.

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