It is a web-based, network-centric, or enterprise application development technology or version of Java designed explicitly for developing web-based, network-centric, or enterprise applications. It covers Servlet, JSP, JDBC, RMI, and socket programming, among others. It is a domain-specific specialty.
Most advanced Java applications have a two-tier design, i.e., Client and Server. Advanced Java applications include all applications that execute on the server.
Why should Java be improved?
- It reduces the complexity of developing a multi-tier application
- Creates a standard API for components and the application server container
- The JEE application server and containers provide the framework services
Advantages of Advanced Java
- Network centricity, process simplification, and a futuristic imaging standard are the four primary advantages of advanced Java.
- JEE (advanced Java) includes libraries that help you comprehend the Client-Server architecture for web-based applications.
- We can also work with Apache Tomcat and Glassfish, web and application servers. We can learn how the HTTP protocol works by using these servers, and it’s not possible in core Java.
- If you’re working with trade technologies like Hadoop, cloud-native, or data science, you’ll also need to know advanced Java.
- It provides a collection of services, APIs, and protocols that enable the capability to construct multi-tiered and web-based applications.
- A variety of advanced Java frameworks, such as Spring, Hibernate, and Struts, enable us to construct secure transaction-based web applications like banking and inventory management.
Topics or Syllabus in Advanced Java
- What is the definition of a web application?
- What is the difference between a web client and a web server?
- How do the client and server interact?
- What is a TCP/IP port URL?
- HTTP protocol fundamentals
- HTML language basics
- The need for a Web Container o How to install Tomcat on a system
- How to create a Servlets JSP project in Eclipse
- How to setup Servlet JSP API dependencies o Web application project structure
- What are Servlets?
- What options do they have? What is their purpose of them?
- What does a Servlet look like in code?
- Differences between getting and POST requests
- Lifecycle of a Servlet
- Servlet Context and Servlet Configuration o Request Forwarding and Redirection
- What exactly is a session?
- Why is it necessary?
- How do I schedule a session?
- Passing session information between the client and the server
- Passing session information techniques – Cookies, Rewriting
- Basic HTML tags o Introduction to JSP and the necessity for JSPs
- Lifecycle of JSP
- Scriptlets
- Expressions
- Declarations
- Importance of the features above and their integration into the JSP Lifecycle
- What are JSP directives?
- Include Directives o Page Directive
- Taglib Directive
- JSP Standard Actions
- Expression Language
- JSTL Fundamentals and Use
- Why do you need a Custom Tag Library?
- How do you construct a Custom Tag Library?
- What is MVC?
- What is the difference between Type 1 and Type 2 MVC architecture?
- Why use the Struts framework?
- Overview of Struts 1
- Comparison between Struts 1 and Struts 2
- Architecture Diagram description of the main components:
- Model, Views, and Controller components in the Struts Framework
- Interceptors
- Model/Action classes
- Value Stack
- OGNL
- What are Interceptors
- Responsibilities of an Interceptor
- Mechanism
- Download JAR files
- Struts 2 project build up and Configuration files
- To build Action class
- To intercept an HTTP request via Struts2 Framework using Action class
- Defining data and business logic in Action class
- Preparing and Forwarding control to Views
- What are Interceptors
- Responsibilities of an Interceptor
- Mechanism
- Workflow interceptor method for validations
- Validations using the Valid table interface
- Introduction and architecture of the Validation Framework
- Using the following two procedures to validate user input
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