Category: Java

In this article on Understanding Enterprise Java Beans, I will explain the concept of Enterprise Java Beans and their role in building a Java Enterprise application. Basically, an Java Enterprise application that makes use of Java EE technology happens to be a multi-tier application. Further, the enterprise-level applications must be scalable and robust. Often these …

The following Java Servlet Practice Questions contain the programming problems in Java Servlet Technology. Basically, servlets are Java programs. Further, servlets execute on Java-enabled web servers. For example, we can use the Apache Tomcat server. In fact, servlet technology provides us with a way to create dynamic web applications. Actually, Servlet technology consists of an …

The following JSP Practice Exercise contains beginner’s lever programs on Java Server Pages (JSP). Basically, JSP is a technology that we can use to create dynamic web applications. Furthermore, JSP is built over servlet technology. So, it provides us the additional capability such as JSP Standard Tag Library (JSTL). For the purpose of creating the …

This article describes an Example of Using this Keyword in Java. Basically, this keyword in Java represents the reference to the current object. Whenever we need to represent the current object or any member of the current object, we can use this keyword. Moreover, we can use it to distinguish between the instance variables and …

This article shows programs to Find Armstrong Number in Java. Basically, checking for an Armstrong is an important programming problem to learn a programming language. Also, it helps in developing programming logic. Meanwhile, you can find more information on Armstrong numbers here. In order to write a program, first, we need to develop its logic. …

This article demonstrates Parameterized Constructor Example in Java. At first, we describe constructors in a class. Role of Constructor in a Class Since a class contains insance variables that each object of the class has its own copy, so it also needs a mechanism to initialize those instance variable. Indeed, a constructor provides such mechanism …

This article demonstrates Sorting in Ascending Order in Java. In fact, array sorting is used in nearly every kind of computer application. It is an important algorithm that we must implement efficiently. Moreover, we can implement sorting in many ways. According, several kinds of sorting algorithms exist. For instance, we have bubble sort, insertion sort, …

This article demonstrates a program Using Numbers As Command Line Arguments in Java. To begin with, let us first understand what is a command-line argument. In general, a command-line argument is passed to the program at the time of executing the command to run the program. In other words, when we run a Java program …

Understanding HTTP Request and Response

This article describes Working with Classes and Objects in Java. Basically, class is a user-defined type. While an object is a real-world entity. Further, an object has attributes and also has a behavior. Since Java is an object-oriented language, a Java program comprises one or more classes containing certain members. Syntax of Creating a Class …