BAEL-7136: Improve the companion code for the article to include multiple properties in the @PropertySource annotation (#15885)

testing-modules/spring-testing/src/main/java/com/baeldung/testpropertysource/ClassUsingProperty.java

@@ -8,8 +8,15 @@ public class ClassUsingProperty {
     
     @Value("${baeldung.testpropertysource.one}")
     private String propertyOne;
-    
+
+    @Value("${baeldung.testpropertysource.two}")
+    private String propertyTwo;
+
     public String retrievePropertyOne() {
         return propertyOne;
     }
+
+    public String retrievePropertyTwo() {
+        return propertyTwo;
+    }
 }