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One: J2SE/J2ME/J2EEThe JAVA2 platform includes three versions of the Standard Edition (J2SE), Enterprise Edition (Java ee), and miniature version (J2ME). J2se,j2me and the Java EE, which is the SunOne (Open netenvironment) system. J2SE is the standard version of JAVA2, mainly for desktop application software programming, J2ME mainly used in embedded system development, such as mobile phone and PDA programming; Java EE is the JAVA2 Enterprise Edition,

. In Localstorage, it is used as a prefix for all keys stored in the localstorage.　　Default value: ' Localforage 'NameThe name of the database. May appear in a hint in the database. Generally use the name of your application. In Localstorage, it is used as a prefix for all keys stored in the localstorage.Default value:‘localforage‘SizeThe size, in bytes, of the database. Now only for WebsqlDefault value: 4980736StoreNameThe name of the Data Warehouse. For DataStore in IndexedDB, the name of the

Notes first I like to declare that I am a layman to J2ME, and because the work does not have anything to do with it, so there will certainly be a lot of good masters to look very retarded things, oh, I hope we do not BS on the good. At the same time hope that the master also to guide the younger brother. Oh. personal interest to see what j2me. In fact, it is mainly to help a brother to complete his graduation design. Oh, don't know he every day is busy doing something in us anyway, only

Serial Communication Overview There are many kinds of serial communication protocols, such as rs232,rs485,rs422, even the popular USB is serial communication protocol. And the application of serial communication technology is everywhere. Perhaps everybody sees most is the computer serial port and the modem communication. Remember when the PC was first popular in China (about five years before the 90 's), when someone even used a serial line to share data between two computers. In addition to th

), Enterprise (Java) and miniature (J2ME) three versions J2SE is Java 2 Standard Edition is the standard version of JAVA2, mainly for desktop application software programming Java EE is the JAVA2 Enterprise Edition is the JAVA2 Enterprise Edition, mainly for the development of distributed network programs, such as E-commerce Web site and ERP system J2ME Java 2 Micro Edition is a miniature version of Java, mainly used in embedded system development, such as mobile phone and

Tutorials | With the rapid development of mobile communications, the new word mobile is slowly becoming a hotspot for developers to focus on. A recent survey conducted online found that 24.34% of respondents were involved in embedded/mobile device application development, a figure that may be slightly higher than the actual ratio, but it also shows that embedded/mobile device application development is a tempting fresh cheese. J2ME (Java 2 Micro Edition) is the king of the embedded/mobile applic

landscape for decades. The user experience is the third kind of innovation, which can bring great development to the enterprise. When Apple launched the ipod five years ago, there were already a lot of MP3 player products on the market. The ipod itself has no special function, that is, play, pour song, but Apple in the user experience has done a very good innovation, things very easy to use, very simple. ipod to add features, you can add a lot of such as to delete a song, such as buy a song to

to the corresponding site). By analyzing the overall structure of the network, Google is able to determine which sites are rated as the best source of information for users who are most interested in their information. As the scale of the network grows, each new Web site will be another point of information, as well as another vote to be credited, and the technology will continue to improve. 5. You don't have to sit in front of your desktop to get the answers you need. The world is becoming mor

Standalone key or physical key Custom key or Soft key ("Confirm", "return") Handwriting Pen Touch screen Figure 1-2 Palm Treo smartphone A device may contain a combination of any of the several input methods mentioned above. Many times, the interactive mode represented by input has become the signboard of some devices. This is mainly due to the fact that early smartphones evolved directly from the more popular PDA (personal digita

. Although the technology has not yet reached 3G, but the use of 1X this 2.5-generation technology, you can achieve some of the business of streaming media. Recently, with the United States Microsoft Company, ready to launch a direct streaming media business on the PDA, the user holding a PDA can watch TV, including downloading some streaming media video programs. Under the six brands, based on information

are required to use WLANs? A: The general user needs to have a notebook computer/PDA and wireless on the network card, if the notebook has a built-in WLAN cards do not need to configure an additional network card. A SIM card is also required when the user chooses to authenticate using the SIM. Q: The fee standard for the use of SMS for business is free package, can you change it? Answer: Yes. According to the revised practice of the provinces. Q:

scenarios where information can be obtained at any time: 2.1 Industry Solutions At present, according to the characteristics of various industries, many companies have adopted to meet the needs of their outdoor staff industry solutions. For example, just enter the Chinese market, a courier company is using a set of mobile solutions. Postmen at the beginning of a day's work, you can directly through the PDA to see all the packages that will be sent

the entire building with a cable line. As a result, it can save a lot of money to spend on laying cables. IrDA Technology IrDA is a technology that uses infrared to point-to-point communication, and is the first technology to realize wireless personal local area network (PAN). At present, its hardware and software technology is very mature, in small mobile devices, such as PDA, mobile phones are widely used. In fact, today every factory

communications technologies. Many manufacturers are involved in this area because of the lower cost of 802.11b investment. Intel has launched a laptop chip group with integrated WLAN technology, which enables wireless Internet access without the need for an external wireless network card. IrDA Technology Infrared Data Association IrDA (infrareddataassociation) was established in 1993. At first, the IrDA-standard wireless device could only transmit data at a 115.2kb/s rate within 1m range, rap

The application of wireless network is more and more important, many important organizations will set up wireless network, then this article will introduce several wireless network deployment. I hope we can have a good understanding of wireless network deployment. 1, hotel, office wireless network deployment First, the easiest and easiest place to think about is hotels and offices. I believe many people know that more and more hotels are starting to be equipped with wireless Internet service,

. 　　Default value: [Localforage. INDEXEDDB, Localforage. Websql, Localforage. Localstorage] Name The name of the database. May appear in a hint in the database. Generally use the name of your application. In Localstorage, it is used as a prefix for all keys stored in the localstorage. Default value:'localforage' Size The size, in bytes, of the database. Now only for Websql Default value: 4980736 StoreName The name of the Data Warehouse. For DataStore in IndexedDB, the name of the databa

is used to transform the existing MiniGUI, it should not be difficult to achieve. However, the defects of the traditional C/S structure cannot be avoided. After analysis on PDA and other embedded systems, we found that some PDA products have the ability to run multiple tasks, but the screen at the same time for drawing programs, generally no more than two. Therefore, as long as the two processes are isolat

image storage device can be connected via wireless USB and transmitted to the image playback device within a few minutes. On the way to and from work, work is idle, take a break at noon, and wait for a car, you can enable the video play device at any time to watch the news, movies, and sports events downloaded. 6) PDA and large-capacity storage devices. PDA usually stores important information, such as pho

A wince program developed before today, user feedback error, because a long time no play, from the user to get equipment. The result how debugging forgot. Find some information on the Internet, I have groped for a bit. Just take care of it.1. Install Microsoft ActiveSync 6.1 users in PDA and PC direct data synchronization2. Connecting Equipment3, start the VS2008, open the project.4. Display the device Tools item on the toolbar5. After successfully co

SIP session by transmitting messages that include the content and features of the SDP protocol used to define the message. The following describes the various SIP components and their functions in this process. The SIP User Agent (UA) is an end user device, such as a mobile phone, multimedia handheld device, PC, and PDA used to create and manage SIP sessions. The user agent client sends a message. The user proxy server responds to messages. The SIP r