Atul Palandurkar

Archive for the ‘Java Source Code’ Category

NetBeans IDE How-to : Atul Palandurkar : Packt Publishing, UK

NetBeans IDE How-to : Atul Palandurkar : Packt Publishing, UK

I was asked to write a book for Java Application Development using NetBeans IDE by PACKT Publishing, UK which is one of the leading technology books publishers in world. It will be a great experience to work with the great publishing house and their team. Thanks a lot Packt & Team.

I know, Java and NetBeans community will definitely accept the book with a grand welcome. The book is intended for Java Developers who are not aware of NetBeans IDE or those who have experience of Java development but have not used NetBeans for development of Java applications. This book can be refered by novice also to learn Java and Java application development using NetBeans IDE very easily.

My outline (contents) was selected out of few other authors and then after we signed the contract, now the book is complete and very soon the book will hit the market in different formats by the publisher in March 2013.

I just love it, I have tried my best in writing this book and to make it easier for novice to experts. It was a great pleasure working with Packt Team.

You will learn many things from this book such as :

  • Use NetBeans IDE for Java technologies
  • Develop a HelloWorld application with NetBeans IDE
  • Explore the layout of NetBeans IDE
  • Develop different Java applications in NetBeans
  • Use the Visual Designer
  • Design Java projects
  • Develop web applications using NetBeans IDE
  • Add and handle images in your application
  • Write interfaces in NetBeans IDE
  • Handle exceptions in NetBeans IDE
  • Deploy UI applications

You can pre-order the book to avail 80% discount. Instead of Packt Publishing the NetBeans IDE How-to book is also available on Amazon, Amazon UK, Barnes & Noble, Safari Books Online too.

You can buy and download the book in different formats such as e-book (pdf), e-pub, kindle book, etc.

Buy NetBeans IDE How-to Book

I hope you will like the book. After reading, please mail me your reviews.

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Free Source Code

Free Source Code

Objectives :
* How to write Hello World in Java?
* How to write Hello World in C?
* How to write Hello World in PHP?
* How to write Hello World in C++?
* How to write Hello World in JavaScript?
* How to write Hello World in HTML?
* How to write Hello World in CSS?
* How to write Hello World in COBOL?

Java

class HelloWorld
{
public static void main(String args[])
{
System.out.println(“Hello World!”);
}
}

C

#include
#include
void main()
{
clrscr();
printf(“Hello World!”);
getch();
}

C++

#include
#include
void main()
{
clrscr();
cout<getch();
}

CSS

body:before
{
content: “Hello World”;
}

COBOL

****************************
IDENTIFICATION DIVISION.
PROGRAM-ID. HELLO ENVIRONMENT DIVISION.
DATA DIVISION.
PROCEDURE DIVISION.
MAIN SECTION.
DISPLAY “Hello World!”
STOP RUN
****************************

HTML

<html>
<head>
<title>Hello World Example</title>
</head>
<body>
Hello World!
</body>
</html>

JavaScript

document.write("Hello World");

PHP

<!--?php echo ‘Hello World!’ ?-->

Linux Shell Script

echo "Hello World !"

Enjoy coding!

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Free Source Code

Free Source Code

Objective :

* How to get the MAC Address of a computer?
* How to get the MAC Address of a computer using Java?
* How to get the MAC Address of a computer via programming?

import java.net.*;

class GetMac
{
public static void main(String arg[])
{
try
{
InetAddress address = InetAddress.getLocalHost();
NetworkInterface nwi = NetworkInterface.getByInetAddress(address);
byte mac[] = nwi.getHardwareAddress();
System.out.println(mac);
}
catch(Exception e)
{
System.out.println(e);
}
}
}

Note : This code will return only the first net address; if you need other detils too, get a list.

Posted from WordPress for Android

Objective :

  • How to write comments in Java?
  • How to write single line comment in Java?
  • How to write multi line comment in Java?
  • How to write documentation comment in Java?
  • What are the types of comments in Java?

Writing Comments in Java :

  • Comments are the statements which are never executed (i.e. non-executable statements).
  • Comments are often used to add notes between source code so that it becomes easy to understand & explain the function or operation of the corresponding part of source code.
  • Java Compiler doesn’t read comments; comments are simply ignored during compilation.
  • There are 3 types of comments available in Java as follows;
  1. Single Line Comment
  2. Multi Line Comment
  3. Documentation Comment

Single Line Comment :

This comment is used whenever we need to write anything in single line.

Syntax : 

//<write comment here>

Example :

//This is Single Line Comment.

Multi Line Comment :

This type of comments are used whenever we want to write detailed notes (i.e. more than one line or in multiple lines)related to source code.

Syntax :

/*

<write comment here>

*/

Example :  

/*
This
Is
The
Multi
Line
Comment
*/

Documentation Comment :

  • The documentation comment is used commonly to produce the javadoc for the respective program.
  • The javadoc is generally HTML, if used in project it is a set of multiple HTML files describing each java program in the corresponding project.
  • In the documentation comment we can add different notations such as author of the project or program, version, parameters required, information on results in return if any, etc.
  • To add these notations, we have ‘@’ operator.  We just need to write the required notation along with the ‘@’ operator.
  • Some javadoc tags are;
    1. @author – To describe the author of the project.
    2. @version – To describe the version of the project.
    3. @param – To explain the parameters required to perform respective operation.
    4. @return – To explain the return type of the project.

Syntax :

/**

*<write comment/description here>

*@author <write author name>

*@version <write version here>

*@param <write parameter here>

*@return <write return type here>

*/

Example :  

/**
* This is Documentation Comment.
* @author Atul Palandurkar
* @version 1.0.0
*/
Free Source Code

Free Source Code

Objective :

  • How to check your operating system by programming?
  • How to check your operating system by Java programming?
  • Write Java program to check operating system & its version

Hi folks,

Hey guys, if you want to know which operating system you are using & its version, there are 2 ways to do it as follows;

  • Using Command Prompt
  • Using Programming

1. Using Command Prompt

  • Go to Start Menu
  • Go to Run
  • Type cmd & press Enter/return. Command Prompt will open.
  • Type ver & press Enter/return, you will get the Name of your OS & its Version that you are using
Here I have used, ver command one of the DOS commands which returns Name of Operating System and its version.

2. Using Programming

Here we are using a Java Program to find the operating system you are using & its version :
package com.si.java.utility.os;

/**
*
* Language : Java
* File : MyOS.java
* Date : Tuesday, October 5, 2010
* @author Atul Palandurkar
* Email : atul.palandurkar@gmail.com
* Website : www.shardainfotech.com
* Blog : http://atulpalandurkar.wordpress.com
*
*/

public class MyOS
{
public static void main(String[] arg)
{
//To find the name of operating system.
String myOS = System.getProperty("os.name");
System.out.println("Operating System : " + myOS);

//To find the version of operating system.
String myOSVersion = System.getProperty("os.version");
System.out.println("Version : " + myOSVersion);
}
}
So, what are you waiting for?
Use it to create various system utilities & have fun.
Free Source Code

Free Source Code

Objective :

  • How to find IP address of your computer?
  • How to find IP address by programming?
  • How to find IP address by Java programming?
  • Write a Java program to find IP Address.

Hello guys.

Do you want to find your IP Address?

There are following ways to check / find your IP Address

  1. Using Command prompt.
  2. Using Programming.
1. Using Command Prompt :
  • Open Command Prompt.
  • Type “ipconfig” without quotes & Press Enter. IP Address will be displayed.
2. Using Programming :
Here we are using a Java Program to find the IP Address. The Java Program to find the IP Address is as follows;

package com.si.java.utility.ip;

import java.net.InetAddress;

/**
*
* Language : Java
* File : IPAddressFinder.java
* Date : Saturday, October 2, 2010
* @author Atul Palandurkar
* Email : atul.palandurkar@gmail.com
* Website : www.shardainfotech.com
*
*/

public class IPAddressFinder
{

public static void main(String[] args)
{
try
{
InetAddress ia = InetAddress.getLocalHost();
String ip = ia.getHostAddress();
System.out.println("Your IP Address :- "+ip);
}
catch (Exception ex)
{
ex.printStackTrace();
}
}
}
The above code can be very useful to find the IP address of your computer, as well as this can be used to find the IP address of the user in internet based applications with a little change in it.
Use it & have fun.
..

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