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08: Web.xml interview questions and answers

Since servlet 3.0 specification, the web.xml file in a web application is optional. The servlet 3.0 API introduced annotations to register servlets. Learn more at Servlet Interview Questions and Answers. Q1. What is a web.xml file? A1. The $ROOT/WEB-INF/web.xml file is the Web Application Deployment Descriptor of your application. This…...

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06: ♦ MVC0, MVC1, MVC2, MVP, MVVM, and MVW web design patterns Java examples

Q1. What’s wrong with Servlets? What is a JSP? What is it used for? What do you know about model 0 (aka MVC0), model 1 (aka MVC1) and model 2 (aka MVC2) patterns? In “model 2” architecture, if you set a request attribute in your JSP, would you be able…...

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02: HTTP basics on headers, MIME types, & cookies for Java developers

Q1. What happens when you open up a browser and type a URL to request a Web page or RESTFul web service data? A1. HTTP is a stateless protocol on top of TCP (Transmission Control Protocol). 1) When the IP address is obtained, the browser will attempt to open a…...

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07: When to use a ServletContextListener in Java EE? Understanding ServletContext and ServletContextListener with examples

A ServletContext object refers to the whole web application, whilst a ServletConfig is for a Servlet. Once an application is deployed onto the web application, ServletContextListener may be configured using annotations or the configuration file named web.xml. A ServletContext object is initialized once while a web application is being deployed,…...

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04: JSP overview interview questions and answers

JSF or JavaScript based frameworks like angularjs, ember, etc are more popular than JSPs for web developemnt. Q1. What is a JSP? How does it differ from a Servlet? A1. JSP stands for Java Server Pages. JSP technology extends the Servlet technology, which means anything you can do with a…...

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05: Web patterns interview Q&A

Q1. What do you know about model 0, model 1 and model 2 MVC design patterns? A1. In the model 0 pattern, which is also known as the model-less pattern, business logic is embedded in the JSP pages. The model 0 pattern is fine for a very basic JSP page,…...

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03: Servlet interview Q&A

Q1. What is a Servlet? Is a Servlet inherently multi-threaded? A1. A Servlet is a Java class that runs within a web container in an application server, servicing multiple client requests concurrently forwarded through the server and the web container. The web browser establishes a socket connection to the host…...

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01: ♦ 12 Web basics every Java web developer must know

Q1. HTTP is a stateless protocol, so how do you maintain state? How do you store user data between requests? A1. This is a commonly asked interview question. The “http protocol” is a stateless request/response based protocol. You can retain the state information between different page requests as follows: HTTP…...

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600+ Java/JEE Interview Q&As

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200+ FAQs for Quick Java Interview Prep

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