[improve] Set the profile programmatically

Author: bogdansolga

d01/d01s05/d01s05e04-environment-usage/src/main/java/net/safedata/spring/training/d01/s05/EnvironmentUsageDemo.java

@@ -15,7 +15,7 @@ public class EnvironmentUsageDemo {
     private static final String PROFILES_ACTIVATION_PROPERTY = "spring.profiles.active";
 
     public static void main(String[] args) {
-        System.setProperty(PROFILES_ACTIVATION_PROPERTY, Profiles.PROD);
+        System.setProperty(PROFILES_ACTIVATION_PROPERTY, Profiles.DEV);
 
         final ApplicationContext applicationContext =
                 new AnnotationConfigApplicationContext(BeanProfilesDevConfig.class, BeanProfilesProdConfig.class);