Any ideas? However, when I run this program, the J2ME simulator says: "Information: This application runs in background and does not use screen". They only show in console. Is there a way to make the debugging work? I only managed to install the first one with NetBeans. It wont accept anything under J2ME sdk, it seems. The mind is everything. What we think we become. The default value is the default encoding used by your VM. Adding Libraries and Resources To view this property page, right-click on a project and choose Properties. In the Properties window Build category, choose Libraries and Resources.
This page allows you to add a dependent project, libraries, and other supporting files to the current project. Add Project. The JAR file produced by another project, as well as the associated source files and Javadoc documentation. Adding this item to a classpath sets up a dependency between the current project and the selected JAR file. A Library is a collection of JAR files or folders with compiled classes, which can optionally have associated source files and Javadoc documentation.
If it is not checked, the library is copied into the lib directory. Add JAR file. A JAR file created by another project.
Add Folder. The root of a package or directory containing files. Once a library or resource is added, it is visible in the Libraries and Resources table, which reflects the order of the libraries and resources in the classpath. To change the order in the classpath, select the listing and click Move Up or Move Down. You can also remove libraries and resources from this page. Each row in the table has a Package check box. If Package is checked, the library or resource is bundled and added to the project JAR file. Name of the JAD file created by the project sources.
The file name must have a. JAR File Name. Name of the JAR file created by the project sources. Compress JAR. If checked, the JAR file is compressed. Obfuscating To view this property page, right-click on a project and choose Properties. In the Properties window Build category, choose Obfuscating. To use the obfuscator, you must download proguard. Use the Obfuscation properties page to set the level of obfuscation for project files. Move the Obfuscation slider to set the level. The Level Description window describes the impact each level has.
You can add more obfuscation parameters in the Additional Obfuscation Settings window. Signing To view this property page, right-click on a project and choose Properties. In the Properties window Build category, choose Signing. These properties allow you to enable signing and assign key pairs to a CLDC project. Sign Distribution. Check this box to enable signing for the MIDlet suite. If it is unchecked, this page is disabled. A file that stores one or more key pairs as a keystore. The dropdown menu lists all available keystores. Click the Unlock button to unlock a keystore for use.
A name assigned to a key pair within a keystore. The dropdown menu lists the aliases available for the selected keystore. Click the Unlock button to unlock a key pair for use. The Certificate Details window provides information about the certificate assigned to the key pair. Click Open Keystores Manager to manage keystores and key pairs. Exporting a Key To view this dialog, right-click on a project and choose Properties.
Displays the name of the keystore file to which the key pair belongs. This field cannot be edited. Key Pair Alias. The name given to the key pair within the keystore. Certificate Details. Displays the details of the certificate of the key to be exported. The drop-down menu lists all the device emulators available. Security Domain. Enables you to select a security domain for the key pair. The menu lists all domains supported by the selected emulator platform.
Keys Registered in the Platform. Lists all keys that have been registered in the selected platform. Click to select the key you want to export.
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Delete Key. Deletes a selected key from the Keys Registered in the Emulator window. Exports the selected key to the selected emulator. The export button is enabled if it is possible to export the key. If a specific key is installed it cannot be installed again. Running Settings To view this property page, right-click on a project and choose Properties. In the Properties window, choose Running. The options shown depend on the platform. It does not apply for OTA provisioning or an external emulator platform.
If you do not check Specify the Security Domain the project runs with the default that was assigned when the project was created. If you check the box, you can select a domain from the dropdown list. The emulator does not represent a specific device, but it provides correct implementations of its supported APIs. The SDK uses the device manager to detect devices and displays the available devices in the Device Selector window. A skin is a thin layer on top of the emulator implementation that defines the appearance, screen characteristics, and input controls.
Before you can run an application from the SDK, the Device Manager, which manages both emulated and real devices, must be running. The default devices shipped with the SDK are automatically found and displayed in the Device Selector window. In the task manager, the process is labeled device-manager. If you are using Java 1. To stop the device manager you must kill its process from a console window. For example, use the ps command to find the device manager process if you are not familiar with ps, type man ps at the command prompt.
In the Device Selector, click the Add a Device icon to launch the wizard. Enter the IP address of the device and click Next. Step 2: Device detection. Choose a verbosity level. You can change the verbosity dynamically. Device detection starts. Notifications are written to the text pane. Progress messages are black, successful detection is green, and failure is red. To launch the device manager, click the Enter an IP address and click Add. Addresses are tested as they are added. If you see this message at startup, it typically means device discovery is incomplete and you just need to wait a few seconds.
The following graphic shows Windows on the left, and Mac OS on the right. These devices have the same capabilities but unique phone numbers, making it easy for you to test communication between two devices. The properties for each device skin are stored in XML files in your user work directory. The platform properties display in a separate window.
Selecting a node in the Project or Files trees causes any available properties to be displayed. The Device Information tab in the Main window displays a picture of the device and displays details, supported hardware capabilities, keyboard support, supported media formats, and the supported runtimes. Device Properties In the Device Selector window, right-click on the platform node and select Properties. The device properties display in a separate window.
Selecting any node causes its properties to be displayed. Any properties shown in gray font cannot be changed. You can adjust the device properties shown in black. Debug Port. The debugging port number. A default is supplied but it can be changed. Enable Profiler. Check this box to enable profiling. This is a CPU snapshot collected during emulation. Enable Network Monitor. Check this box to enable the network monitor. Phone Number. You can set the phone number to any appropriate sequence, considering country codes, area codes, and so forth.
If you reset this value, the setting applies to future instances. The number is a base value for the selected device. The Heapsize property is the maximum heap size for the emulator. You can choose a new maximum size from the dropdown menu. Select a security setting from the dropdown menu.
Type in the locale as defined in the MIDP 2. Mac OS Mac hardware does not have serial ports. When the emulator encounters the call to open the port the serial file is instantiated. When the connection is closed the serial file is removed. Right-click on the device and select a project from the context menu. If projects are not suitable they are displayed in gray font. You can test this behavior in the emulator. To test this feature, follow these steps: 1. Open the sample projects Games and AudioDemo. In the device selector, choose an MSA-compliant device and run Games. When the emulator launches run AudioDemo on the same device.
Select AudioPlayer, then from the soft menu, select 1, Launch. Select JavaOne Theme and press the Play soft button. Select SunSamples - Games. From the soft menu, select 1, Open. The music continues to play while you are able to simultaneously launch and play games. Highlight AudioSamples, and from the soft menu, select 2, Bring to foreground.
Press the Pause soft key. The music stops playing. Highlight AudioSamples and from the soft menu, select 1, Open. Select Bouncing Ball from the list and from the soft menu, select 1, Launch. Select Audio Player and select Switch to. You can press the Play soft button to resume the Audio Player. Enter a locale identifier. The separator can be a dash or an underscore. Resume F6 Resume a suspended application. Suspend F5 Pause a running application. You see a list of running MIDlets and you can chose the one you want to view.
Exit Close the emulator process and stop the build process or processes. This is especially useful when you are running multiple emulator instances and you want to see them all and send messages between devices. External Events Generator The external events generator is a utility for simulating external file systems or applications communicating with the application running on the emulator. Inputs can come from a script file on your PC or they can be injected based on your interaction with a user interface. The external events generator provides a tab to support JSR implementations that require external event emulation: File Connection 75 , Location , Payment , and Sensors Orientation Choose a degree of rotation 0, 90, , or degrees clockwise from the 0 position or, rotate clockwise by 90 degrees from the last position F8 or counterclockwise by 90 degrees F9.
On Mac OS, the F9 key is is used to show all applications. To reliably rotate counter-clockwise you should remap the counterclockwise rotation to a different key. Each device instance is stored in a numbered directory. To create your own instance, follow these steps: 1. In the copied directory, open the properties. You can also change the values in device. In the system tray, right-click on the Device Manager icon and select Exit from the context menu.
In the Device Selector you see a new node named Other. All your custom devices are listed here. To assign this device to a project, right-click the project, select Properties, and choose Platform. Your instance appears in the Device drop list. You can also edit the device adaptor to create a new instance. For example, to create a second instance of the ClamshellCldcPhone, follow these steps: 1. Make a copy of 1. Edit 2. For example, ClamshellCldcPhone2. Start the SDK. ClamshellCldcPhone2 is listed in the Other category. Check Use Filter to see search options. If you do not check Use Filter, all devices in the database are listed.
Make a selection from the dropdown menu on the left. If applicable, the center dropdown displays a list of conditions. The menu on the right displays a value. Click the - button to remove a search setting. Click the Search button. The search returns devices that match all the chosen criteria.
The results are not case sensitive. Click on a device to view its properties on the right, as shown below. If Use Filter is not checked all devices are listed. If Use Filter is checked, you must set at least one constraint. Unchecked types might still be supported. All users with an account on the host machine can access the SDK. This feature is called the Multiple User Environment. Note — The Multiple User Environment supports access from several accounts.
It does not support multiple users accessing the SDK simultaneously. To support multiple users the SDK creates an installation directory that is used as a source for copying. This document uses the variable work to represent the SDK working directory and installdir to represent the installation directory. A different user can then launch the SDK and own all processes.
The bin directory contains the following command line tools. After installation it starts as a service, and it will automatically restart every time your computer restarts. UEI compliant emulator. Tool for signing MIDlets. Management of ME keystores. Minimalistic console for viewing payment transactions.
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The Java ME preverifier. A tool for managing JSR resource bundles. Compiles of stubs and skeletons for JSR Release documentation. A simple development environment. User Directories This documentation sometimes uses user. If you delete this directory, it will be recreated automatically when the device manager is restarted.
For a particular emulation session, it figures out how much time was spent in each method and how many times each method was called. The SDK supports offline profiling. Data is collected during the emulation session. After you close the emulator a profiler data snapshot is written to a. As you view the snapshot you can investigate particular methods or classes and save a customized snapshot a.
Note — This feature might slow the execution of your application. Ensure that the heap size is at least 4MB. The profiler maintains a large amount of data, so profiled MIDLets place greater demands on the heap. To check the heap size, go to the Device Selector window, right-click on a device and choose Properties. If and provide a larger heap size. In the Device Selector window, right-click on a device and choose Properties. Check the Enable Profiler option, and note the location of the profiler output file.
Start your application. Interact with your application as you normally would. The profile data snapshot is saved and is loaded automatically and displayed in a tab labeled CPU:time, where time is the time the snapshot was saved. The data can also be manually loaded at a later time. Follow these steps to retrieve profile data: 1. Choose the data. In the main window, the Profiler opens in its own tab labeled CPU:time. Note — The profiling values obtained from the emulator do not reflect actual values on a real device. In the toolbar at the top of the tab, make a selection from the View menu.
Method Level View default. Results are displayed according to the fully-qualified method names. Class Level View. Results for all methods of the same class are aggregated in a single entry. Package Level View. All methods of classes that belong to the same package are aggregated. Click any column label to sort based on its values. To remove a column from the display, click the table icon above the scroll bar and uncheck the column name. The above screenshot shows a view that combines the Call Tree and Hot Spots. Click the tabs along the bottom to see different views: Call Tree.
This tab shows the total execution time and number of invocations for each method, irrespective of the context. It also includes the Method Name Filter Field, which filters based on the first column. To select the filtering parameters, click the filter icon and choose from the menu. Enter a search string in the filter field. You can enter multiple values separated by spaces. To apply the filter, click the green check.
To restore the unfiltered data, clear the filter field by clicking the red symbol. This tab displays the Call Tree information in the upper part of the window and the Hot Spot data in the lower part. This tab displays the time the snapshot was taken, where it is saved, and the configuration of the profiling session. You can right-click a profiling result to access additional utilities.
The actions you see depend upon the currently selected view.
Displays the subtree for the selected method. Displays the back traces for the selected method. Displays the selected class or method in the Hot Spots tab. You can take a snapshot of your current view at any time and import the snapshot later on. The default snapshot extension is. The default format is. Loading a Customized Snapshot Follow these steps to load a customized profiler snapshot. The snapshot opens in its own tab in the main window labeled CPU:time.
Choose a customized snapshot. The network monitor provides a convenient way to see the information your application is sending and receiving on the network. This is helpful if you are debugging network interactions or looking for ways to optimize network traffic. Networking monitoring works for emulators only it is not supported for real devices. Check the Enable Network Monitor option. When you next run an application on the device, the network monitor opens. You can also edit the device.
When the application makes any type of network connection, information about the connection is captured and displayed. Click a message to display its details in the bottom frame. In the Hex View, message bodies are shown as raw hexadecimal values with the equivalent text. To avoid memory issues, the Hex view is currently limited to 16kB of data. Incomplete messages are indicated by bold highlighting in the message tree. The supported protocols are datagram, socket, http, and https. Messages are sorted in chronological order of time sent or received.
Messages are sorted by URL address. Multiple messages with the same address are sorted by time. Messages are sorted by communication connection. Messages using the same connection are sorted by time. This sort type enables you to see messages grouped by requests and their associated responses. Note — Sorting parameters are dependent on the message protocol you choose. For instance, sorting by time is not relevant for socket messages. Choose a file name. The default file extension is. Note — To avoid memory issues, the Hex view display is currently limited to 16kB of data.
Lightweight UI Toolkit supports pluggable theme-ability, a component and container hierarchy, and abstraction of the underlying GUI toolkit. The term lightweight indicates that the widgets in the library draw their state in Java source without native peer rendering. Resources are delivered as a bundle - a binary file that can be loaded and used on the device. Enter a bundle name and click OK. You are ready to add resources to the new bundle. Resources you edit or create are added to the bundle.
Resource Types This topic briefly summarizes resource types. The file name can be changed and you can choose to pack the file to save space. GIF files. You just supply a name. The font is created from a font on your system - for example, Arial or Courier. In the event that the font you choose is missing, you can choose a system font as a backup. Choose the main localization bundle, for example, foobar. This main bundle is then added with a "default" ID.
Other locales are added with their proper ID. Unfortunately this resource must be recreated in the resource manager when more locales are added or removed. Adds the. You can see the package under Libraries and Resources. MIDP 2. MIDlet suites are installed into a protection domain that determines access to protected functions. The MIDP 2. The general process to create a cryptographically signed MIDlet suite is as follows: 1.
The MIDlet author, probably a software company, buys a signing key pair from a certificate authority the CA. For definitive information, consult the MIDP 2.
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Provides a high level of security for applications whose origins and authenticity cannot be determined. The user is prompted frequently when the application attempts a sensitive operation. Intended for MIDlets whose origins were determined using cryptographic certificates. All permissions are denied to MIDlets in this domain. All permissions are granted to MIDlets in this domain. Maximum is the default setting. The SDK includes four JTWI security domains: untrusted - Provides a high level of security for applications whose origins and authenticity cannot be determined.
Maximum is the default value. The emulator uses public key cryptography to determine the appropriate security domain. Specify the Security Domain for an Emulator 1. In the Device Selection window, right-click on the device and select Properties. Find the Security Domain setting and make a selection from the context menu. The SDK knows the runtimes the device can support and supplies only possible domains. Specify the Security Domain for a Project 1. In the Category area, select Running the green triangle. Select Regular Execution and check the Security domain box.
In this context regular execution means you are running in the emulator, as opposed to running OTA. Select the domain from the drop-down menu. Signing a Project Devices use signing information to check an application's source and validity before allowing it to access protected APIs.
For test purposes, you can create a signing key pair to sign an application. From the Build hierarchy, select Signing. Check the Sign Distribution checkbox. Choose a keystore from the Keystores drop-down menu, or click Open Keystores Manager to create a new keystore. The Certificate Details area displays the Alias, Subject, Issuer, and validity dates for the selected keystore.
Choose a key pair alias from the drop-down menu. A keystore might be accessed by several key pairs, each with a different alias. If you prefer to use a unique key pair, select Open Keystores Manager and create a new key pair. The Keystores Manager administers this task, as described in the remainder of this topic. You can also import keys from an existing Java SE platform keystore.
Keystores contain key pairs, which you can also manage from this dialog. You must select a keystore to access the key pair tools. The Keystores Manager opens. Click Add Keystore. The Add Keystores window opens. It provides the following features, which are described in detail below:.
Enter your email address to subscribe to this blog and receive notifications of new posts by email. Sign me up! Home About. Practical Theory When a user interacts with a MIDlet loaded on a mobile information device, some events are generated. Basics: Callbacks When a user interacts with a MIDlet, events are generated and the application is modified to handle and respond to these events.
Low-level events that represent single key presses and releases. Calls to the paint method of a Canvas class. Screen Navigation As a MIDlet developer, you are responsible for providing a way for the user to navigate the different screens that make up your MIDlet. ANY ; input. Like this: Like Loading It provides the following features, which are described in detail below: Integration with third-party emulators and Windows Mobile devices. On-device deployment and on-device debugging. New development environment based on Netbeans Platform. Device search database integrated in SDK. JavaFX Mobile Emulator included.
As the installation concludes, the Device Manager appears in the Windows system tray.