Category: Java

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 …

In this article, I will discuss the examples of JSTL Tags for Condition and Loop. In general JSP tag Library contains <c:if>, and <c:forEach> tags for checking conditions, and loops respectively. Syntax of <c:if> Tag <c:if test=””, var=””, scope=””></c:if> Basically, the test attribute specifies the condition. While the var attribute stores the result of the …

This article explains Using Arrays in Java. Basically, an array is a data type that contains multiple elements of the same data type. Declaring Arrays in Java The following code shows that how to declare arrays in Java. Syntax: Since, arrays are dynamically, allocated in Java, we need to use the new operator, as shown …

The following code example shows how to Compute and Display Area of a Circle in Java. Apart from being a simple program, it lets you learn many useful basic concepts of Java programming language when you have just started learning. The following section describes some of the important points. Accepting Input from User In order …