Tutorial: Write a program for calculating area and perimeter of a rectangle
In this section, you will learn how to calculating area and perimeter of a rectangle.
Tutorial Details:
This program provides you complete description with example source code. First of all create a class named RecArea under Java.io package. Now define two integer variable 'l' and 'w'. As the program will be based on keyboard numerical input, it is important for every programmer to use correct data without any mistake.
In this case the exception methods like try/catch mechanism helps in detecting user input errors. So before starting the functional code, enclosed it with try clause so that any error in the statement causes the execution of the catch clauses.
Use AOP to maintain legacy Java applications
Use AOP to maintain legacy Java applications
This artical shows you how to use aspect-oriented programming (AOP) to gain an unprecedented view into the inner workings of even the most opaque of legacy applications.
Please note that this article assume
JGraph - The Java Graph Diagram Component
JGraph - The Java Graph Diagram Component
JGraphAddons is a drop-in functional module that adds powerful and configurable layout algorithms to your existing JGraphs. They include hierarchical, circular and tree layouts capable of giving your JGraph app
Create Intelligent E-mail Filters with JavaMail and Classifier4j
Create Intelligent E-mail Filters with JavaMail and Classifier4j
Tired of the limitations and annoying false positives with commercial spam filters? Classifier4J is an open source Java library that will let you build custom applications that read e-mails
Very simple `Hello world' java program that prints HelloWorld
Very simple `Hello world' java program that prints HelloWorld
Hello World Java
Simple Java Program for beginners (The HelloWorld.java)
Java is powerful programming language and it is used to develop robust applications. Writing a simple Hello
Saving and retrieving
objects with Java