Apache Netbeans Not Opening Windows 10

[Malcolm Lozada]

Its time to write your first application! These detailed instructions are for users of the NetBeans IDE. The NetBeans IDE runs on the Java platform, which means that you can use it with any operating system for which there is a JDK available. These operating systems include Microsoft Windows, Solaris OS, Linux, and Mac OS X.

When you create an IDE project, you create an environment in which to build and run your applications. Using IDE projects eliminates configuration issues normally associated with developing on the command line. You can build or run your application by choosing a single menu item within the IDE.

A source file contains code, written in the Java programming language, that you and other programmers can understand. As part of creating an IDE project, a skeleton source file will be automatically generated. You will then modify the source file to add the "Hello World!" message.

The IDE invokes the Java programming language compiler (javac), which takes your source file and translates its text into instructions that the Java virtual machine can understand. The instructions contained within this file are known as bytecodes.

To set this JDK as the default for all projects, you can run the IDE with the --jdkhome switch on the command line, or by entering the path to the JDK in the netbeans_j2sdkhome property of your INSTALLATION_DIRECTORY/etc/netbeans.conf file.

When you created this project, you left the Create Main Class checkcbox selected in the New Project wizard. The IDE has therefore created a skeleton class for you. You can add the "Hello World!" message to the skeleton code by replacing the line:

If the build output concludes with the statement BUILD FAILED, you probably have a syntax error in your code. Errors are reported in the Output window as hyperlinked text. You double-click such a hyperlink to navigate to the source of an error. You can then fix the error and once again choose Run Build Project.

When you build the project, the bytecode file HelloWorldApp.class is generated. You can see where the new file is generated by opening the Files window and expanding the Hello World App/build/classes/helloworldapp node as shown in the following figure.

The next few pages of the tutorial will explain the code in this simple application. After that, the lessons go deeper into core language features and provide many more examples. Although the rest of the tutorial does not give specific instructions about using the NetBeans IDE, you can easily use the IDE to write and run the sample code. The following are some tips on using the IDE and explanations of some IDE behavior that you are likely to see:

Once you have created a project in the IDE, you can add files to the project using the New File wizard. Choose File New File, and then select a template in the wizard, such as the Empty Java File template.

You can compile and run an individual file (as opposed to a whole project) using the IDE's Compile File (F9) and Run File (Shift-F6) commands. If you use the Run Main Project command, the IDE will run the file that the IDE associates as the main class of the main project. Therefore, if you create an additional class in your HelloWorldApp project and then try to run that file with the Run Main Project command, the IDE will run the HelloWorldApp file instead.

As you are typing in the IDE, a code completion box might periodically appear. You can either ignore the code completion box and keep typing, or you can select one of the suggested expressions. If you would prefer not to have the code completion box automatically appear, you can turn off the feature. Choose Tools Options Editor, click the Code Completion tab and clear the Auto Popup Completion Window check box.

If you want to rename the node for a source file in the Projects window, choose Refactor from IDE's main menu. The IDE prompts you with the Rename dialog box to lead you through the options of renaming the class and the updating of code that refers to that class. Make the changes and click Refactor to apply the changes. This sequence of clicks might seem unnecessary if you have just a single class in your project, but it is very useful when your changes affect other parts of your code in larger projects.

Applications built on top of NetBeans Platform may change configuration of various aspects via branding. E.g. by providing different values for certain keys in various Bundle. This page summarizes the list of such branding APIs defined by modules with API.

By default a MultiViewElement allows the containing TopComponent to split it. Some systems may however find this not of any use. Then they should brand the MultiViewElement.Spliting.Enabled to false. NetBeans IDE by default does allow spliting.

Controls interaction when sources are about to be attached to a Classpath root, in SourceJavadocAttacherImplementation provided by this module. By setting API_Ask_attachSourcesQuestion key in org/netbeans/modules/java/j2seplatform/api/Bundle.properties one can control the function:

Controls interaction when javadocs are about to be attached to a Classpath root, in SourceJavadocAttacherImplementation provided by this module. By setting API_Ask_attachJavadocQuestion key in org/netbeans/modules/java/j2seplatform/api/Bundle.properties one can control the function:

Brand the DEFAULT_REUSE_OUTPUT key in a org.netbeans.modules.maven.options.Bundle file with one of the values true or false to specify the default behavior of reusing output by your application. Use never value, if the reuse shall never be done, regardless of the settings value.

Brand the DEFAULT_COMPILE_ON_SAVE key in a org.netbeans.modules.maven.api.execute.Bundle file with one of the values all or none to specify the default behavior of compile on save in Maven projects.

Brand the DEFAULT_CREATE_INDEX key in org.netbeans.modules.maven.indexer.api.Bundle file with one of the values true or false to control (usually to disable with DEFAULT_CREATE_INDEX=false) the default behavior automatic maven index downloading.

By default importing settings (as described by OptionsExport API does not require restart. Some systems may however support complex modifications to the installation structure. Then they should brand the OPT_RestartAfterImport to true. NetBeans IDE does require restart after settings import.

There is a way to enable mnemonics in popup menu items created via Actions factory methods in your own application build on top of NetBeans Platform. Just provide branding for org/openide/awt/Bundle.properties file and modify USE_MNEMONICS=always. Other possible values of this key include default, never or always.

Name of resource bundle property which disables the drag and drop of window TopComponents when its value is set to false, the default value is true. The property value can be adjusted by branding of org.netbeans.core.windows module. Or use -J-DNB.WinSys.TopComponent.DragAndDrop.Enabled=false command-line switch to override.

Name of resource bundle property which disables undocking of window TopComponents when its value is set to false, the default value is true. When this feature is disabled then there is no 'Undock' item in TopComponent popup menu and 'Undock Window' action the main menu is disabled. The property value can be adjusted by branding of org.netbeans.core.windows module. Or use -J-DNB.WinSys.TopComponent.Undocking.Enabled=false command-line switch to override.

Name of resource bundle property which disables sliding of window TopComponents when its value is set to false, the default value is true. When this feature is disabled then there is no 'Minimize Window' item in TopComponent popup menu and also the Minimize button in TopComponent's header is hidden. The property value can be adjusted by branding of org.netbeans.core.windows module. Or use -J-DNB.WinSys.TopComponent.Sliding.Enabled=false command-line switch to override.

Name of resource bundle property which disables resizing of window TopComponents when its value is set to false, the default value is true. When this feature is disabled then it is not possible to drag splitter bars to change the size of TopComponents. The property value can be adjusted by branding of org.netbeans.core.windows module. Or use -J-DNB.WinSys.TopComponent.Resizing.Enabled=false command-line switch to override.

Name of resource bundle property which disables closing of view TopComponents (non-editor windows) when its value is set to false, the default value is true. When this feature is disabled then there is no 'Close Window' item in view's popup menu, there is no close button in TopComponent's header and also 'Close Window' action in the main menu is disabled when a view TopComponent is activated. The property value can be adjusted by branding of org.netbeans.core.windows module. Or use -J-DNB.WinSys.View.TopComponent.Closing.Enabled=false command-line switch to override.

Name of resource bundle property which disables closing of editor TopComponents (document windows) when its value is set to false, the default value is true. When this feature is disabled then there are no 'Close Window', 'Close All Documents' and 'Close Other Documents' items in editor's popup menu, there is no close button in editor's header and also Close actions in the main menu are disabled when an editor TopComponent is activated. The property value can be adjusted by branding of org.netbeans.core.windows module. Or use -J-DNB.WinSys.Editor.TopComponent.Closing.Enabled=false command-line switch to override.

Name of resource bundle property which disables maximization of TopComponents when its value is set to false, the default value is true. When this feature is disabled then there is no 'Maximize Window' item in TopComponent's popup menu and also 'Maximize Window' action in the main menu is disabled. The property value can be adjusted by branding of org.netbeans.core.windows module. Or use -J-DNB.WinSys.TopComponent.Maximization.Enabled=false command-line switch to override.

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