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Writing implement a simulation of the mobile phone graphical user interface, including a display and a keyboard area, display used to indicate that a digital and information, the keyboard area including the 10 key figures (0 to 9) and "send" and "reset", "shut down" three command button. Consider using what graphics world user interface layout strategy.
For written interface increase incident response function: when the user press numeric keys, the corresponding digital back to show in display When the user "reset" button, the figures show empty When users click "send" button, display the current number and appeared in "dial up......" The information When the user shutdown ended when key program.