Tutorials

Reading from and Writing to a Text File in Java

Submitted by mehfuza on
Introduction: This tutorial demonstrate the method of reading from and writing to a text file in Java. Java has two type of files: Binary and Text. Text file is processed as a sequence of characters where as Binary file is processed a sequence of bytes. This application has 4 JButtons for reading, writing, exiting, and clearing the Display Area. Also It has a display area where we can type the data to be written to text and in the same area content from file are displayed. Step 1: Creating GUI Components Create the four buttons, label, text area and text field.

Advance Login Form in Visual Basic .NET

Submitted by Hasan soherwardi on
Advance Login Form: ____________________ Advance Login Form in VB.NET 2010 and Ms Access Database 2007. This tutorial is for you to learn how to make an advance login in VB.NET. It is for beginners only. I hope this tutorial is very helpful for beginners. So download it, learn and injoy programming.

Creating Sleepy Face in Java

Submitted by mehfuza on
In this tutorial we will learn to create a simple face(only eyes) which change when sleep button or wakeup button is clicked. This Application has two JButtons and a Panel for displaying the face. This Application handles Action Events for the buttons. In all we will create three class to make the design simple and clear.

Part 1: Creating a Class FacePanel for drawing face

Step 1: This class is used to draw the face based on whether the face is awake or asleep. For that we require a boolean variable awake which is set false initialy.

Converting Java Applet to Application

Submitted by mehfuza on
Applets are programs which run on web browser and Application means the stand alone program in a computer. In Java we can convert Applets to Application and Application to Applet. Using this idea we can make any program run as either applet or as an application. Following are the steps for converting applets to Application. Step 1: Change init() method's name to the constructor. Java Applets contains init() method which is used for initializing the applet, this method should be changed to constructor for that class.

Part IV: Improving of Code using Modules in Visual Basic.Net

Submitted by joken on
This tutorial is a continuation of Part III: Update and Delete Specific Data in MySQL Database using Visual Basic. Net. But this time we're going to focus on how we can improve the design of our existing code using Code Refactoring. Refactoring is the process of changing a software system in such a way that it hasn't altered the external behavior of the code, yet improves its internal structure.

Creating simple Calculator in Java

Submitted by mehfuza on

Introduction

This tutorial is about creating simple calculator which performs only four operations. For creating a simple Calculator we require two JTextFields where the user can enter two numbers, four JButton for four operations namely addition, subtraction,multiplication and division, a JLabel for displaying the result.

Implementation

Step 1: Creating a class which extends JFrame because we are going to create an Application. After this we have to define the constructor of the class as follows. Super() is used to give title to the frame.