Mobile Phone Programming: Application to Wireless Networking by Associate Professor Frank H. P. Fitzek, Frank Reichert

By Associate Professor Frank H. P. Fitzek, Frank Reichert (auth.), Associate Professor Frank H. P. Fitzek, Frank Reichert (eds.)

This publication offers a great evaluate of cellphone programming focusing on either academia and undefined. cellphone Programming covers all advertisement realizations of Symbian, home windows cellular and Linux structures. every one programming language (JAVA, Python, C/C++) and a collection of improvement environments are brought “step through step” making builders conversant in present obstacles, pitfalls, and demanding situations.
Each bankruptcy comprises examples and resource code to quickly make builders acquainted with an important strategies. Examples conceal peer to see networks, cooperative networking, move layer protocol layout, key demanding situations reminiscent of strength intake, and sensor networks for which an entire and software program implementation is provided.
Whether you're an skilled developer or a sophisticated pupil cellular phone Programming should be your key reference for effectively coming into the area of software program improvement for cellular devices.

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Open ( ’ e : \ \ boo . wav ’ ) S . record () print ” R e c o r d i n g ! To end i t , s t o p from menu ! ” def p l a y i n g ( ) : global S S=a u d i o . Sound . open ( ’ e : \ \ boo . wav ’ ) S . play ( ) print ” P l a y i n g ! To end i t , s t o p from menu ! ” def c l o s i n g ( ) : global S S . stop () S . close () print ” Stopped ” 20 def q u i t ( ) : app lock . signa l () 25 30 a p p u i f w . app . menu = [ ( u” p l a y ” , p l a y i n g ) , ( u” r e c o r d ” , r e c o r d i n g ) , ( u” s t o p ” , c l o s i n g ) ] a p p u i f w .

Code Example Simple Graphics import appuifw , e32 , k e y c o d e s , 4 9 graphics def d r a w p o i n t ( ) : img . c l e a r ( 0 x 0 0 0 0 f f ) img . p o i n t ( ( 1 2 0 , 1 0 0 ) , 0 x f f 0 0 0 0 , width =70) c . b l i t ( img ) def n o t d r a w p o i n t ( ) : img . c l e a r ( 0 x 0 0 0 0 f f ) c . b l i t ( img ) def q u i t ( ) : app lock . signa l () 14 19 a p p u i f w . app . s c r e e n= ’ f u l l ’ c=a p p u i f w . Canvas ( ) a p p u i f w . app . body=c s=c . s i z e img=g r a p h i c s .

Outside this function it can not be used. But the keyword global in front of the variable a tells that it belongs to the global scope. Therefore variable a can be used also in function function_two(). 10. Variable scope. 40 J. Scheible automatically to the global scope, like variable z in the example. 6 Debugging There are three kinds of errors that can occur in a Python program: syntax errors, runtime errors, and semantic errors. Python may produce syntax errors when it translates the source code into byte code when starting up the program by the Python interpreter.

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