How to write a java desktop application

Components And Containers Other than command-line applications which interact with the user only through simple text prompts, Java application can have graphical components as well. You should be familiar with the graphics and images displayed inside web pages that use Java applets. Java applets are a Java program that is intended to be embedded in a web page and executed through a browser. Java also has capabilities to create programs with graphical user interfaces GUIs.

How to write a java desktop application

When prompted, enter the password for the database user with admin privileges. After running the Ant task, you should see a build successful message in the JDeveloper Log window.

In the New Gallery, expand the General category and select Applications. The JDeveloper application is the highest level in the organizational structure.

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While you are developing your application, it stores information about the objects you are working with. At the same time, it keeps track of your projects and all environment settings.

Based on prebuilt templates, a JDeveloper application allows you to specify a predefined type of environment, depending on the type of application you want to create web application, Java application, and so on. Application templates provide you with a quick way to create the project structure for standard applications with the appropriate combination of features already specified.

The application template also filters the work you do in JDeveloper such that the choices available are focused only on the features you are working with.

how to write a java desktop application

Once you have created an application using a suitable template, you can still add new projects to the application and specify what features are to be included. To do this, in the Application Navigator, right-click the application name and choose New Project.

In the New Gallery, you can select any type of project in the How to write a java desktop application list. To follow along with the example, enter OrdersApplication as the application name. The application template you select determines the initial project structure, that is, the named project folders within the application workspace, and the application libraries that will be added.

The project or projects in the application define the associated features. A JDeveloper project, which is used to logically group files that are related, keeps track of the source files, packages, classes, images, and other elements that your program may need.

Projects manage environment variables such as the source and output paths used for compiling and running your program. Projects also maintain compiler, runtime, and debugging options so that you can customize the behavior of those tools per project.

You can add multiple projects to your application to easily access, modify, and reuse your source code. Different projects might contain files representing different tiers of a multi-tier application, for instance, or different subsystems of a complex application. These files can reside in any directory and still be contained within a single project.

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Accept the defaults and click Finish. The Projects panel in the Application Navigator should look like this: A new application created from a template appears in the Application Navigator already partitioned into tiered projects, with the associated features set in each project.

how to write a java desktop application

Projects are displayed as the top level in the hierarchy in the Application Navigator. In the Application Navigator you can collapse and expand any panel. You adjust the size of panels by dragging the splitter between two panels.

To group and sort items in the Projects panel, use the Navigator Display Options dropdown menu. For application operations, you can click Application Menu and choose an option from the dropdown menu. JDeveloper has the capability of recognizing many different file types, displaying each in its appropriate viewer or editor when you double-click the file in the Application Navigator.

Closing an application or project closes all open editors or viewers for files in that application or project and unloads the files from memory. Nodes in italics in the Application Navigator mean that the elements have not yet been saved.

A project node is bold when a file in the project is selected. The Application Overview window opens in the editor window area. All objects that you create within JDeveloper appear in the Application Overview file summary pages, arranged by object type.

As you create new files and artifacts, you can view them filtered by status and project. You can optionally close the Application Overview window, since you will not be using it to create objects for this application. Enter a name for the connection, select the connection type, and enter the username and password.

To follow along with this example, use FOD for the connection name and fod for the username. Click Test Connection to confirm that you can connect. Click OK if the connection was successful. In the Application Navigator, expand the Application Resources panel, then expand the Connections and Database nodes to see the database objects.

The database connection you created for example, FOD is included as a resource for your application under the Connections Database node. After adding the database connection to the application resources, you can optionally contract the Application Resources panel to increase the size of the Projects panel in the Application Navigator.This IDE is written in the Java programming language and provides the services common to desktop applications, such as window and menu management, settings storage, and so forth.

It is also the first IDE to fully support JDK features. The Desktop class allows a Java application to launch associated applications registered on the native desktop to handle a URI or a file..

Supported operations include: launching the user-default browser to show a specified URI; launching the user-default mail client with an optional mailto URI; launching a registered application to open, edit or print a specified file.

If nothing else, Freeware Java gives you source code access to quite a few well written Java applets and Java application examples. I’d recommend you go straight to the applets page to check out the source for chat rooms, games, website scripts and more. Write your application in Java ( files) Compile your application using Eclipse or javac ( files) Bundle files in an executable .jar file)The very file can be distributed and executed on Windows systems, Mac systems, various UNIX based OS, etc.

You could write an application that reads information out of a text file, formats the information or does calculations, and then loads that data into a spreadsheet. The possibilities are really limited only by your own imagination when it comes to VBA. This article introduces a free, percent Java library, VNCj, and shows you how to use it to create remote controllable Swing, AWT (Abstract Windowing Toolkit), and other applications in Java that can be accessed by any VNC (Virtual Network Computing) viewer.

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