JSF Interview Questions and Answers
JSF is known as Java Server Faces, and it is an MVC web-based framework. It mainly simplifies User Interface (UI) construction for server-based applications. The UI components are reusable in a page in JSF. It provides a set of standard UI components and gives an Application Programming Interface (API) for the developing elements. All the popular JSF interview questions and answers have been put together which will be handy if you want to crack an interview.
- The UI components of JSF are reusable.
- JSF allows transferring data quickly between the UI components.
- The efforts of creating and maintaining applications are reduced by JSF.
- UI state is managed across multiple server requests.
- The architecture of JSF is easy to use by the developers.
- In JSF a clear separation is there between behavior and presentation.
These top JSF Interview Questions will be helpful in clearing job interviews and getting a promotion at work.
- A set of core libraries.
- A set of UI components- HTML input elements.
- JSF has multiple rendering capabilities which enable JSF UI components to render them that depends differently on the client types.
- The base UI components are extended to make additional UI component libraries or existing extended components.
Most Frequently Asked JSF Interview Questions
JSF is having different types of bean scopes like @RequestScoped, @NoneScoped, @ViewScoped, @SessionScoped, @ApplicationScoped and @CustomScoped.
The Backing bean is similar to the Managed bean in JSF. The difference in the two merely pertains to the usage of the two.
| S.no | Backing Bean | Managed Bean |
|---|---|---|
| 1. | A backing bean is referred to by its form | The managed bean is a backing bean which has been registered with the JSF. It gets automatically created and optimized by the JSF. |
| 2. | The Backing Beans should be defined in the request scope only | The Managed beans are created by the JSF, and it can be stored within the session, request or application scope. |
The programmer should create a new XML file and put the managed beans detail inside and declare the XML file in the javas.faces.CONFIG_FILES. This is done to initialize the parameters which are there inside the WEBINF/web.xml. file.
You can declare the message bundle in two ways. The first way which is the simplest way is to state the message bundle by a supply file name faces-config.xml in the Web INF category. Another way is to use a global resource bundle declaration. You can add the f: load Bundle element to each element.
Development History
JSF was developed in the year 2001 and was written in Java.
All the popular JSF interview questions and answers have been put together which will be handy if you want to crack an interview. This will be helpful in clearing job interviews and getting a promotion at work.