Beginning J2ME: From Novice to Professional, Third Edition. Copyright . Programming a Custom User Interface. . Sun's J2ME Wireless Toolkit Emulators. J2ME: The Complete Reference. James Keogh. McGraw-Hill/Osborne publisher, with the exception that the program listings may be entered, stored, and. J2ME Programming AWT/Swing: J2ME has its own GUI classes motorola. com/docstools/technicalarticles/Bluetooth_pdf.
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2. Wireless Java 2 ME Platform Programming. The creators of the J2ME platform delineated pervasive devices into two distinct categories. This tutorial provides a step-by-step introduction to downloading, installing, and configuring your computer application programming interface (API) known as the Mobile Information Device .. heading graphics, and two PDF files. Our ability . This tutorial examines in detail the Java 2 Platform, Micro Edition (J2ME) and targets the intermediate developer who has a solid background in Java programming and the concepts of object-oriented .. It is available in both PDF and javadoc.
Alongside with the CLDC comes a profile.
This class actually manages the whole application. An application state defines the execution mode of the application. An active state is the normal running mode of the application.
A paused state is invoked when an interruption occurs such as an incoming phone call. A destroyed state is invoked when the MIDlet application ends its operation.
These classes are classes that can be displayed on the screen. One such common class is the Canvas class.
This class, which is very popular in game application, can draw, various objects on the screen, display pictures in PNG format and can handle animations too. Other Displayable classes are the List class which display menus and the Form class which displays plain text. The Display class manages the display of the MIDlet. By this class, the users can decide which Displayable class should be displayed right now.
Java is an object-oriented programming language developed by Sun Microsystems , and it was released in Java programs are platform independent which means they can be run on any operating system with any processor as long as the Java interpreter is available on that system. Java code that runs on one platform does not need to be recompiled to run on another platform; it's called write once, run anywhere WORA. Where is Java being Used? Earlier Java was only used to design and program small computing devices, but it was later adopted as one of the platform-independent programming languages, and now according to Sun, 3 billion devices run Java.
Java is one of the most important programming languages in today's IT industries.
Applets - Applets are another type of Java programs that are implemented on Internet browsers and are always run as part of a web document. J2EE - Java 2 Enterprise Edition is a platform-independent environment that is a set of different protocols and APIs and is used by various organizations to transfer data between each other.
JavaBeans - This is a set of reusable software components that can be easily used to create new and advanced applications. Mobile - In addition to the above technology, Java is widely used in mobile devices nowadays, many types of games and applications are being made in Java.
Standalone Application - It is also known as the desktop application or window-based application. An application that we need to install on every machine or server such as media player, antivirus, etc.
AWT and Swing are used in java for creating standalone applications. Enterprise Application - An application that is distributed in nature, such as banking applications, etc. It has the advantage of high-level security, load balancing, and clustering.
In Java, EJB is used for creating enterprise applications. Mobile Application - Java is used to create application software for mobile devices. Currently, Java ME is used for building applications for small devices, and also Java is a programming language for Google Android application development.
Features of Java Object-Oriented - Java supports the features of object-oriented programming.