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The HttpsConnection interface contains methods and constants to obtain a secure network connection. A URL with the https scheme is passed to the Connector.open() method to get an Https connection, as shown in the syntax below: Connector.open(https://www.j2re.com/hr.html) [read more..]
The Spacer class extends the Item class. It positions other items on the Form object, and therefore it is non-interactive. A developer cannot add commands to a Spacer object by using the addCommand() method, as it will throw an IllegalStateException. The Spacer object have no label, and an... [read more..]
The List class is a subclass of the Screen class. Like any other subclass of the Screen class, it, too, covers the entire displayable area of the device. It provides user interface by displaying a list of items to a user. The user can select an item from the list. The general syntax for creating... [read more..]
Permissions are means of protecting APIs that cannot be accessed without proper authorization. These permissions are obtained using the MIDlet-Permissions or the MIDlet-Permissions-Opt attribute in the JAD file. The permissions requested in the MIDlet-Permissions attribute are marked as... [read more..]
The setText() method is a method of the StringItem class. It is used to change the text associated with the StringItem instance. The general syntax of this method is as follows: public void setText(String str) Here, the str parameter specifies the text to be displayed with the instance... [read more..]
The notifyDestroyed() method is a method of the MIDlet class. It is called by a MIDlet to inform the AMS that it has entered into the destroyed state. In this situation the AMS does not call the destroyApp() method, and all the resources held by the MIDlet are considered to be liable for release.... [read more..]
The destroyApp() method is a method of the MIDlet class. It is used to terminate a MIDlet and enter the destroy state. A MIDlet must release all the resources and save the persistent data in this state. The general syntax of this method is as follows: protected abstract void... [read more..]
The startApp() method is a method of the MIDlet class. It is invoked to start the execution of a MIDlet. The general syntax of this method is as follows: protected abstract void startApp() It is an abstract method. It must be implemented by the class that extends the MIDlet class. [read more..]
The pauseApp() method is a method of the MIDlet class. It is called to stop the execution of a running MIDlet. A MIDlet must release all the resources it acquired in the start phase. The general syntax of this method is as follows: protected abstract void pauseApp() [read more..]
The getFont() method is a method of the Graphics class. It is used to return a font, based on the arguments passed to it. The general syntax of this method is as follows: getFont(int fontface, int fontstyle, int fontsize) Here, the fontface parameter takes one of these constants:... [read more..]
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