Java Servlets Application Hosting Web Hosting, web hosting, JSP, Servlets, Tomcat, website hosting, web site hosting
Web Hosting, web hosting, JSP, Servlets, Tomcat, website hosting, web site hosting
Web Hosting, web hosting, JSP, Servlets, Tomcat, website hosting, web site hosting

Alden Hosting provides professional, efficient, and reliable business-class Web hosting services to small- and medium-sized businesses.

WWW.

Call Us Toll-Free
(877) 256-0328

Outside USA
1 - (201) 505-0430

Java Servlets Application Hosting Welcome Java Servlets Application Hosting Web Hosting Plans Overview , Fund Raising, Fundraising, web hosting, website hosting, web site hosting Java Servlets Application Hosting Fund Raising, Fundraising, web hosting Java Servlets Application Hosting Resellers, web Hosting Java Servlets Application Hosting Web Design, web Hosting Java Servlets Application Hosting Extra Services,  web Hosting Java Servlets Application Hosting Traffic Booster, web hosting Java Servlets Application Hosting Traffic Booster, web hosting Java Servlets Application Hosting Technical Support,  web Hosting Java Servlets Application Hosting webmaster tips,  web Hosting Java Servlets Application Hosting 30 Day Money Back, web hosting Java Servlets Application Hosting Legal Notices for Web Hosting Java Servlets Application Hosting Glossary Computer Terms for web Hosting Java Servlets Application Hosting Contact Information - web hosting

Site Map

  Java Servlets Application Hosting Web Hosting Sign-Up   Java Servlets Application Hosting Fund Raising, Fundraising, web hosting, website hosting, web site hosting    Java Servlets Application Hosting Resellers web hosting, website hosting, web site hosting   Java Servlets Application Hosting EZ Site Control Panel for web hosting,website hosting, web site hosting

JAVA, JSP, SERVLETS, TOMCAT, SERVLETS MANAGER,
Private JVM (Java Virtual Machine),
Private Tomcat Server

Alden Hosting offers private JVM (Java Virtual Machine), Java Server Pages (JSP), Servlets, and Servlets Manager with our Web Hosting Plans WEB 4 PLAN and WEB 5 PLAN , WEB 6 PLAN .

At Alden Hosting we eat and breathe Java! We are the industry leader in providing affordable, quality and efficient Java web hosting in the shared hosting marketplace. All our sites run on our Java hosing platform configured for optimum performance using Java, Tomcat, MySQL, Apache and web application frameworks such as Struts, Hibernate, Cocoon, Ant, etc.

We offer only one type of Java hosting - Private Tomcat. Hosting accounts on the Private Tomcat environment get their very own Tomcat server. You can start and re-start your entire Tomcat server yourself.


Adding the Application Logic (The Java™ Tutorials > Creating a GUI with JFC/Swing > Learning Swing with the NetBeans IDE)
Trail: Creating a GUI with JFC/Swing
Lesson: Learning Swing with the NetBeans IDE
Home Page > Creating a GUI with JFC/Swing > Learning Swing with the NetBeans IDE
Adding the Application Logic
It is now time to add in the application logic.

Step 1: Change the Default Variable Names

The figure below shows the default variable names as they currently appear within the Inspector. For each component, the variable name appears first, followed by the object's type in square brackets. For example, jTextField1 [JTextField] means that "jTextField1" is the variable name and "JTextField" is its type.

Default Variable Names

Default Variable Names

The default names are not very relevant in the context of this application, so it makes sense to change them from their defaults to something that is more meaningful. Right-click each variable name and choose "Change variable name." When you are finished, the variable names should appear as follows:

New Variable Names

New Variable Names

The new variable names are "tempTextField", "celsiusLabel", "convertButton", and "fahrenheitLabel." Each change that you make in the Inspector will automatically propagate its way back into the source code. You can rest assured that compilation will not fail due to typos or mistakes of that nature — mistakes that are common when editing by hand.

Step 2: Register the Event Listeners

When an end-user interacts with a Swing GUI component (such as clicking the Convert button), that component will generate a special kind of object — called an event object — which it will then broadcast to any other objects that have previously registered themselves as listeners for that event. The NetBeans IDE makes event listener registration extremely simple:


This figure has been reduced to fit on the page.
Click the image to view it at its natural size.

In the Design Area, click on the Convert button to select it. Make sure that only the Convert button is selected (if the JFrame itself is also selected, this step will not work.) Right-click the Convert button and choose Events -> Action -> ActionPerformed. This will generate the required event-handling code, leaving you with empty method bodies in which to add your own functionality:


This figure has been reduced to fit on the page.
Click the image to view it at its natural size.

There are many different event types representing the various kinds of actions that an end-user can take (clicking the mouse triggers one type of event, typing at the keyboard triggers another, moving the mouse yet another, and so on.) Our application is only concerned with the ActionEvent; for more information about event handling, see Writing Event Listeners.

Step 3: Add the Temperature Conversion Code

The final step is to simply paste the temperature conversion code into the empty method body. The following code is all that is necessary to convert a temperature from Celsius to Fahrenheit:
    //Parse degrees Celsius as a double and convert to Fahrenheit.
    int tempFahr = (int)((Double.parseDouble(tempTextField.getText()))
            * 1.8 + 32);
    fahrenheitLabel.setText(tempFahr + " Fahrenheit");
Simply copy this code and paste it into the convertButtonActionPerformed method as shown below:


This figure has been reduced to fit on the page.
Click the image to view it at its natural size.

With the conversion code in place, the application is now complete.

Step 4: Run the Application

Running the application is simply a matter of choosing Run -> Run Main Project within the NetBeans IDE. The first time you run this application, you will be prompted with a dialog asking to set CelsiusConverterGUI as the main class for this project. Click the OK button, and when the program finishes compiling, you should see the application running in its own window.

Congratulations! You have completed your first Swing application!

Previous page: Adjusting the CelsiusConverter GUI
Next page: Questions and Exercises: Learning Swing with the NetBeans IDE

JAVA, JSP, SERVLETS, TOMCAT, SERVLETS MANAGER,
Private JVM (Java Virtual Machine),
Private Tomcat Server

Alden Hosting offers private JVM (Java Virtual Machine), Java Server Pages (JSP), Servlets, and Servlets Manager with our Web Hosting Plans WEB 4 PLAN and WEB 5 PLAN , WEB 6 PLAN .

At Alden Hosting we eat and breathe Java! We are the industry leader in providing affordable, quality and efficient Java web hosting in the shared hosting marketplace. All our sites run on our Java hosing platform configured for optimum performance using Java, Tomcat, MySQL, Apache and web application frameworks such as Struts, Hibernate, Cocoon, Ant, etc.

We offer only one type of Java hosting - Private Tomcat. Hosting accounts on the Private Tomcat environment get their very own Tomcat server. You can start and re-start your entire Tomcat server yourself.


Web Hosting, web hosting, JSP, Servlets, Tomcat, website hosting, web site hosting
Add to My Yahoo!

XML icon

Add to Google

 

 

 

 

 

 

 

 

 

 

 

http://alden-servlet-Hosting.com
JSP at alden-servlet-Hosting.com
Servlets at alden-servlet-Hosting.com
Servlet at alden-servlet-Hosting.com
Tomcat at alden-servlet-Hosting.com
MySQL at alden-servlet-Hosting.com
Java at alden-servlet-Hosting.com
sFTP at alden-servlet-Hosting.com
http://alden-tomcat-Hosting.com
JSP at alden-tomcat-Hosting.com
Servlets at alden-tomcat-Hosting.com
Servlet at alden-tomcat-Hosting.com
Tomcat at alden-tomcat-Hosting.com
MySQL at alden-tomcat-Hosting.com
Java at alden-tomcat-Hosting.com
sFTP at alden-tomcat-Hosting.com
http://alden-sftp-Hosting.com
JSP at alden-sftp-Hosting.com
Servlets at alden-sftp-Hosting.com
Servlet at alden-sftp-Hosting.com
Tomcat at alden-sftp-Hosting.com
MySQL at alden-sftp-Hosting.com
Java at alden-sftp-Hosting.com
sFTP at alden-sftp-Hosting.com
http://alden-jsp-Hosting.com
JSP at alden-jsp-Hosting.com
Servlets at alden-jsp-Hosting.com
Servlet at alden-jsp-Hosting.com
Tomcat at alden-jsp-Hosting.com
MySQL at alden-jsp-Hosting.com
Java at alden-jsp-Hosting.com
sFTP at alden-jsp-Hosting.com
http://alden-java-Hosting.com
JSp at alden-java-Hosting.com
Servlets at alden-java-Hosting.com
Servlet at alden-java-Hosting.com
Tomcat at alden-java-Hosting.com
MySQL at alden-java-Hosting.com
Java at alden-java-Hosting.com
sFTP at alden-java-Hosting.com
JSP Servlets Tomcat mysql Java JSP Servlets Tomcat mysql Java JSP Servlets Tomcat mysql Java JSP Servlets Tomcat mysql Java JSP at JSP.aldenWEBhosting.com Servlets at servlets.aldenWEBhosting.com Tomcat at Tomcat.aldenWEBhosting.com mysql at mysql.aldenWEBhosting.com Java at Java.aldenWEBhosting.com Web Hosts Portal Web Links Web Links Web Hosting JSP Solutions Web Links JSP Solutions Web Hosting Servlets Solutions Web Links Servlets Solutions Web Hosting Web Links Web Links . .
.
.
. .
. . . . jsp hosting servlets hosting web hosting web sites designed cheap web hosting web site hosting myspace web hosting