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IDE Overview. Plug-in modules. Downloads - Download swing-layout-1.0.jar free. In many areas, like Swing building or JME development, NetBeans IDE is now the tool download swing-layout-1.0.jar free beat, with levels of download swing-layout-1.0.jar free and productivity that match or exceed any other tool, open source or commercial. This special first edition of NetBeans Magazine showcases a wide selection of IDE and extension features, from desktop and web development to plug-in module creation.
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But the most exciting developments happened in the latest releases, specially 4. In many respects, such as desktop development, NetBeans can be download swing-layout-1.0.jar free as the most powerful and most easy-to-use Java IDE This article gives an overview of the IDE while building a complete desktop application. The application will use an embedded relational database and require customization of Swing components, so it will be a small-scale real project except only for the lack of help content and an installer.
The project download swing-layout-1.0.jar free also stick to Object-Oriented best practices, showing that you can develop GUI applications quickly and interactively, without compromising long-term maintenance and a sound architecture. We start with the basic procedures to install and configure Download swing-layout-1.0.jar freeincluding a quick tour of the IDE user interface.
Then the sample application is presented, followed by the steps to create it using the IDE features. As we move deeper into the application logic, the article will switch to a higher level discussion.
That way, this article aims for two objectives: 1. Provide more seasoned developers with useful insights about GUI development best practices, while using the best of NetBeans features. The to-do application will be developed using a three-step process.
The first step prototypes the UI design, where NetBeans really shines. The third and last step builds the download swing-layout-1.0.jar free and validation logic.
Readers familiar with the MVC architecture will note these steps form a process that starts with the View, then builds the Controller, and download swing-layout-1.0.jar free builds the Model. Just visit netbeans. I personally prefer to click on the link below Other distributions, sources and extras after the download form, and download instead the NetBeans IDE 5.
Just pick a directory and unpack the archive, and Download swing-layout-1.0.jar free is ready to run. Windows users will use download swing-layout-1.0.jar free netbeans. The IDE will open with a welcome page see Figure 1. At the top of the IDE window, you see the main menu and toolbar.
A 1 A 2 The left area contains two navigational panels. The top one is shared by the Projects, Files and Runtime windows. The bottom area contains the Navigator window, and the right-center area is used for the many editors included with NetBeans.
Multiple editors and windows can share the same area; the IDE provides tabs for selecting the one displayed. The Files window is used when you need to see the physical file structure of your projects, and the Runtime window shows IDE processes and other environment resources like databases and Java EE servers.
Figure 2 shows the pre-configured libraries included with NetBeans 5. Most Swing download swing-layout-1.0.jar free and samples from books use anonymous inner classes which is the installation default for NetBeansbut I find this idiom difficult to read and maintain. You get giant methods containing the code for handling download swing-layout-1.0.jar free unrelated events. I prefer instead to have each listener as a named inner class, as shown in the figure.
The IDE provides a lot more customization than is shown by the Options window. This time you get a tree structure with hundreds of options grouped into categories. Most developers will want to enable anti-aliased text rendering on the editors, as shown by the figure, because this makes the code more readable. Most applications will have longer lists of requirements, and implementing even these simple example is not a trivial task. Building prototypes of the application UI helps end-users to state their requirements, and that's one of the reasons visual GUI builders became so popular.
But even with a GUI builder, a quick sketch on paper can be of great help. We plan two main windows for the Todo application: a tasks list and a task-editing form. A rough download swing-layout-1.0.jar free for both is shown in Figure 5. Only when you have your functional specs and their implementation well advanced, at the end of the development process, do you need to worry about file formats download swing-layout-1.0.jar free databases. In my experience, this two-level download swing-layout-1.0.jar free approach improves productivity, and mixes well with TDD and other Extreme Programming practices, while keeping costs and schedule under control and meeting user demands.
That leads us to developing the Todo application in three steps: 1. Notice that the IDE opens the visual form editor, as shown in Figure 6; notice also the location of the Projects, Navigator and Properties windows, the Palette and the editor area. An orange frame highlights the selected component the JFrame content pane in download swing-layout-1.0.jar free figure. The navigator displays all visual and non-visual components on the JFrame, which is handy when you need to change customized UI components download swing-layout-1.0.jar free needed.
Code the persistence logic. Any work in the IDE is done inside a which shows by default the standard Swing project. Click on the New Project toolbar icon and select the Java components you can also add download swing-layout-1.0.jar free Application entry in the General Category.
Properties are categorized to disk. Then click Finish. Just click right-click inside the JFrame and select the Set Layout menu item.
You download swing-layout-1.0.jar free learn more about GroupLayout in an article in this edition. If you choose any other layout, Matisse will be disabled and you will download swing-layout-1.0.jar free the old NetBeans Visual Form editor. Select the Toolbar icon on the palette and move the mouse over the drawing area. These guidelines help you keep controls aligned and spaced out inside the container. Matisse generates the layout download swing-layout-1.0.jar free to maintain the positioning of each component when the container is resized or when the Look and Feel LAF is changed.
As toolbars are usually attached to the download swing-layout-1.0.jar free borders, move our toolbar to the top left corner of the JFrame another set of guidelines will provide visual feedback helping component placement.
Click to attach the toolbar at the desired location, and drag the right border so it becomes attached to the right JFrame border. Figure 8 illustrates this process. Repeat the process to insert a JLabel attached to the left, bottom and right corners of the JFrame. This label will be used as a download swing-layout-1.0.jar free message area for the tasks window.
The result so far should look like Figure 9. Now try resizing the JFrame content panel the drawing area. But instead of referring to the icons by file system paths, which would lead to additional logic to find the icon files on the user machine, I created an icons folder under the project src folder which corresponds to the Source Packages item in the Projects window and copied all icon files there.
Non-Java files inside the Source Package folder will be added by NetBeans to the application jar file, and the application will be able to refer to them as classpath A 12 resources, no matter where the jar file is installed on the user machine.
Click on the ellipsis button at the right side of the download swing-layout-1.0.jar free property to open the customizer shown in Figure Use this customizer to configure the icon for the component.
After selecting the Classpath radio button, the Select File button will allow you to browse the icon files and select interactively the one to use including icon files inside jar packages.
This is plain Strings like in other GUI toolkits. A prototype should display actual data or at least data a typical user would input, A 10 not the way the final instead of placeholder text. This will help application will look users understand the prototype and make like.
Typically, the sure the UI allows for sufficient space for customization of displaying the actual data. JTables will require Now the prototype should look like the development Figure The main element still missing of custom Java is the download swing-layout-1.0.jar free menu bar. To add it, select classes like cell the JMenuBar control on the palette and click renderers and anywhere inside the drawing area except column models inside the JToolbar or its JButtons.
Then you can select the new JMenu and configure its properties. Adding menu items follows a similar procedure. But the Navigator window allows access to the items, and the Properties window reacts to selection on the Navigator the same way it does in the drawing area. Figure 14 shows all menus to guide you in completing the TasksWindow. These are configured respectively by the mnemonic and accelerator properties. We start with a JLabel attached to the left, top and right borders of the dialog, with no spacing.
It will serve as a message area for validation download swing-layout-1.0.jar free and the like. Set its opaque property and the background color so it looks like a band at the top of the dialog. Now add three JLabels for the description, priority download swing-layout-1.0.jar free due date fields.