With the fast development of information ages, the mobile telephone has become the important tools of the correspondence in everyday life. Chinese telephone directory, Chinese short message and Chinese note book appearing, people make the realization of Chinese input for mobiles phone. A kind of quick and easy learning input method is of the importance for the promotion of above mentioned application. This thesis aims at this kind of need, elaborates the development and the present condition of the input method in the current mobile telephone, and introduces the various input method as well as corresponded soft and hardware environment. This thesis firstly introduces the function of the numerical keyboard of the Chinese characters and total design thought, then talks about the important problem mentioned. It studies and carries out Bopomofo input method, letter of alphabet ABC input method as well as numeral 123 input methods. The thesis uses the technology of J2ME and select Eclipse as the development kit Wireless Toolkit as a test simulator. And the input method has already transplanted to mobile telephone testing
Key words:J2me; Chinese input; Eclipse
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