You want to add a custom property app.title in application.properties and access it in your Spring Boot code. Which of these steps is correct?

hard📝 state output Q15 of 15

Spring Boot - Fundamentals

You want to add a custom property app.title in application.properties and access it in your Spring Boot code. Which of these steps is correct?

AAdd <code>app.title=MyApp</code> in properties and access it with <code>System.getenv("app.title")</code>

BAdd <code>app.title: MyApp</code> in properties and read it with <code>System.getProperty("app.title")</code>

CAdd <code>app.title=MyApp</code> in properties and use <code>@Value("${app.title}")</code> in code

DAdd <code>app.title=MyApp</code> in properties and use <code>@Autowired String app.title</code> in code

Step-by-Step Solution

Solution:

Step 1: Add custom property correctly
Use key=value syntax: app.title=MyApp in application.properties.
Step 2: Access property in Spring Boot code
Use @Value("${app.title}") annotation to inject the property value.
Final Answer:
Add app.title=MyApp in properties and use @Value("${app.title}") in code -> Option C
Quick Check:
Custom property + @Value injection = correct [OK]

Quick Trick: Use @Value("${key}") to inject properties in code [OK]

Common Mistakes:

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