Dotnet

JLabels in Swing can contain text, images or both.   JLabel do not generate an action event though   it works on Mouse Events.Like MouseMotion,MouseListener etc.   We can also add non-functional labels in our interface(GUI).   You can also specify the position of the text relative to the image.   Also we can align,specify border,size and many more properties.   Constructors:- JLabel class has following Constructors   JLabel()  //  Creates  a   JLabel  without an image and with empty string...Read Full Story

eBook Details Author:Tod Golding No of Pages: 408 pages Press: WROX Dated:October 17, 2005 Language: English ISBN-10: 0764559885 ISBN-13: 978-0764559884 eBook Description Professional .NET 2.0 Generics Generics represent one of the most compelling additions to the .NET platform, bringing a new dimension of type-safety, expressiveness, and performance to your data types. Professional .NET 2.0 Generics provides a detailed examination of all the facets of what you can achieve...Read Full Story

One of the objectives of Exam 70-536 is Implementing interoperability, reflection, and mailing functionality in a .NET Framework application Call unmanaged DLL functions within a .NET Framework application, and control the marshalling of data in a .NET Framework application. There are several subtopics in this requirement. The example presented today will cover Create a class to hold DLL functions; Create prototypes in managed code Call a DLL function Call a DLL function in special cases...Read Full Story

C# Iteration Constructs Almost all programming languages I have worked with will have your simple for loop, foreach statments. So, this is just something to practice little on, we will not spend too much time on it: for loop foreach / in loop while loop do/while loop We will now examine these looping construct in a new console application. for Loop With for loop you can iterate over a block of code with a fixed number of times. That being said, you are able to specify how many times a block...Read Full Story

The if & else if statement Conditional statements allows us to test to see if a specific condition is met. static void Main(string[] args) { Console.WriteLine("Type is a string"); string input; input = Console.ReadLine(); if (input == "") { Console.WriteLine("You typed an empty string"); } else if (input.Length < 5) { Console.WriteLine("The string had less then 5 characters"); } else if (input.Length < 10) { Console.WriteLine("The string has at lease 5 but less" + "then 10 characters...Read Full Story

A user-defined Thread class that prints the name of a thread object for 100 times . class PrintNameThread extends Thread { PrintNameThread(String name) { super(name); start(); //runs the thread once instantiated } public void run() { String name = getName(); for (int i = 0; i < 100; i++) { System.out.print(name); } } } class TestThread { public static void main(String args[]) { PrintNameThread pnt1 = new PrintNameThread("A"); PrintNameThread pnt2 = new PrintNameThread("B...Read Full Story

Make a program that compute the power of a number given the base and exponent. Do three versions of this program using a while loop , a do-while and a for-loo p. Create also a flowhart. Flow chart is as tool use by software developer in solving the problem. Use Java prgramming language in the software development. Java program source code using while loop: import javax.swing.JOptionPane; /** * Computes the power of a number given the base and the exponent. * The exponent is limited...Read Full Story

I am taking a small break from my current project, and have started looking at building a common component library that all future projects will be based on. This library will have many things in it, like Specification classes, various interfaces, some helpers and extensions, as well as some persistence related things. This is where this post comes in. I got the idea from working with nhibernate that I might want to use some better entity comparisons than what is built into the clr Equals...Read Full Story

Unary Numeric Promotion Contexts: · Operand of the unary arithmetic operators + and – · Operand of the unary integer bit-wise complement operator ~ · During array creation, for example new int[x], where the dimension expression x must evaluate to an int value. · Indexing array elements, for example table[‘a’], where the index expression must evaluate to an int value. · Individual operands of the shift operators. Binary numeric promotion Contexts: · Operands of arithmetic operators...Read Full Story

  Something that seems quite easy to do is to parse a url. This is actually very easy in c#. However if you search on google you will see all sorts of solutions to it. Using regular expressions and various other ways to do it. Most of which I have always found really ugly. If your going for this method you really have to think about the fact that it has been a problem now for over 20 years and there must be a more common solution.   Some of these extreme methods may include something...Read Full Story