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This article introduces the relevant knowledge of "which techniques are needed to learn J2ME programming". In the operation of actual cases, many people will encounter such a dilemma, so let the editor lead you to learn how to deal with these situations. I hope you can read it carefully and be able to achieve something!

1. The advanced user interface refers to the use of Form (form), TextBox (text box), List (list box) and Alert (prompt information box) used in J2ME programming, as well as the use of some of these controls, including the corresponding event handling. Used in general, such as login forms, about forms and prompts, etc.

2. Low-level user interface low-level user interface refers to the use of Canvas class and Graphics class, as well as the corresponding event handling, application and game programming and special interface drawing.

3. Record storage system record storage system is a technology supported in mobile phones for permanent data storage. Because there is no concept of data file in the mobile phone, the data that needs to be saved can only be saved in the form of records.

4. The sound processing system MIDP1.0 does not support sound processing, but many mobile phone manufacturers such as Nokia and Siemens support it, so playing sound is also a technology that needs to be mastered. The API used in this technology is mostly related to mobile phone manufacturers. But MIDP2.0 provides general support.

5. Network programming Network programming refers to connecting the network in the form of HTTP protocol or SOCKET through GPRS or CDMA network in the mobile phone. Nowadays, most mobile phones support HTTP network programming, while relatively few support SOCKET. So network programming is to program with HTTP protocol for the time being.

6. Multithreading and multithreading is one of the core technologies in J2ME applications, because network programming and low-level user interface programming need to be processed into multithreads in order to respond quickly. So you must be proficient in it.

7, short message programming many mobile phones provide API for sending short messages, such as NOKIA, SIEMENS, SAMSUNG, etc., so sending short messages in J2ME is also a more commonly used technology. 8, of course, other technologies are also provided according to different manufacturers, such as Siemens API support files, Nokia API support to read the system address book and so on.

This is the end of the content of "what skills need to be mastered in learning J2ME programming". Thank you for reading. If you want to know more about the industry, you can follow the website, the editor will output more high-quality practical articles for you!

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