What is advanced Java?

Introduction

Core Java (J2SE) and Advanced Java are the two components that make up the Java programming language (JEE). The foundations of the Java programming language, including its data types, functions, operators, loops, threads, and exception handling, are discussed in the "core Java" section of this book. It is used in the process of developing apps for widespread usage. Whereas Intermediate Java focuses on more advanced topics, such as database connection, networking, Servlet, web services, and so on, Advanced Java addresses more fundamental ideas. In this article, we will talk about what advanced Java is, and the concepts of advanced Java.

Advanced java

Everything that is beyond Core Java is known as Advanced Java. This includes the application programming interfaces (APIs) that are specified in Java Enterprise Edition, as well as Servlet programming, Web Services, the API, and so on. It is a Web and Enterprise application development platform that, in its most basic form, adheres to the client-server architectural model.

Important concepts of advanced Java

Majorly there are three most important concepts in advanced Java and they are −

• JSP (Java server pages)

• JDBC (Java DataBase Connectivity)

• Java servlets

We will discuss these concepts in detail in the upcoming sections.

JSP (Java server pages)

Java Server Pages, sometimes known as JSP, is a server-side programming tool that allows the construction of web-based applications in a manner that is both dynamic and independent of the underlying platform. JSP is able to access the whole family of Java APIs, including the JDBC API, which is used to connect to business databases. In a series of straightforward and uncomplicated stages, this article will show you how to create online apps by making use of Java Server Pages.

The following is a list of the primary characteristics of JSP technology −

• A language used for the development of JSP pages, which are documents written in text format that specifies how to handle a request and generate a response.

• An expression language that allows access to things stored on the server.

• In the JSP programming language, the mechanisms for introducing new extensions

JDBC (Java DataBase Connectivity)

Java Application Programming Interface (API) known as JDBC, which stands for Java Database Connectivity, allows users to connect to databases and run queries on them. It is a specification developed by Sun Microsystems that aims to give Java programs a standardized abstraction (API or Protocol) for communicating with a variety of databases. It offers the language standards for connecting to Java databases. It is used in the process of writing programs, which are necessary in order to access databases. Access to databases and spreadsheets is possible using JDBC when combined with a database driver. JDBC application programming interfaces allow users access to the business data kept in a relational database (RDB).

Purpose of JDBC

It is necessary for enterprise applications built with the JAVA EE technology to connect with databases in order to store information that is unique to the application. Therefore, an effective database connection is required for interacting with a database. This connectivity need may be met by using the ODBC (Open database connectivity) driver. This driver is used in conjunction with JDBC in order to interface or communicate with several sorts of databases, including SQL server databases, Mysql, Oracle, and MS Access amongst others.

Java Servlets

The Java applications known as servlets are executed on a web server or application server that supports the Java programming language. They are put to use to handle the request that has been acquired from the web server, to process the request, to generate the response, and finally to send the response back to the web server.

The following is a list of properties of Servlets −

• Servlets are programs that run on the server.

• Servlets are capable of managing requests that are very sophisticated and are received from the web server.

The technologies that are used in the process of developing dynamic web pages are what are known as server-side extensions. In point of fact, in order to provide the functionality of dynamic web pages, web pages need a container, also known as a web server. Independent Web server vendors provide certain proprietary solutions in the form of application programming interfaces (APIs) to satisfy this need (Application Programming Interface).

Conclusion

So here we come to the end of discussion on the advanced Java. In this article, we learned about what is advanced java, and the concepts of advanced Java like JSP (Java servlet pages), JDBC (Java Database Connectivity), and Java servlets.