Spring Framework FAQ: Top Questions

BeanFactory is the root container interface in Spring, while ApplicationContext is a more advanced child interface that adds support for i18n, events, and resource loading.

📘 Key Differences:

• ApplicationContext eagerly loads beans; BeanFactory loads lazily.
• ApplicationContext supports event publication, internationalization, and auto-wiring.

📥 Example:

BeanFactory factory = new XmlBeanFactory(new ClassPathResource("beans.xml"));
ApplicationContext ctx = new ClassPathXmlApplicationContext("beans.xml");

🏆 Expected Output:

Both create bean instances, but ApplicationContext offers more features.

🛠️ Use Cases:

• Use ApplicationContext for modern Spring apps.
• BeanFactory only for memory-constrained environments.