... 429 Using NSData to Create Custom Archives 436 Using the Archiver to Copy Objects 439 Exercises 441 20 Introduction to Cocoa and Cocoa Touch 443 Framework Layers 443 Cocoa Touch 444 21 Writing ... language source file .cc, .cpp C+ + language source file .h Header file .m Objective -C source file .mm Objective -C+ + source file .pl Perl source file .o Object (compiled) file Objective -C source files ... about its initial characteristics acquired from the factory, but also its current characteristics.Those charac- teristics can change dynamically.As you drive your car, the gas tank becomes depleted,...
Ngày tải lên: 18/02/2014, 12:20
... be printed at the points indicated by the next two occurrences of the %i characters in the format string. Summary After reading this introductory chapter on developing programs in Objective -C, you should ... of programming in Objective -C rests on the extensive frameworks that are available. Chapter 2, Programming in Objective -C, ” begins by teaching you how to write your first program in Objective -C. Because ... puzzled by the leading @ character. With- out that leading @ character, you are writing a constant C- style string; with it, you are writing an NSString string object. More on this topic in Chapter...
Ngày tải lên: 29/04/2014, 15:25
c for engineers and scientists introduction to programming with ansi c phần 5 pptx
... lines, the first line starting with the number 5 and each succeeding number increasing by 2. b. Include the function written in Exercise lOa in a working program. Make sure your function is called ... The last character, which is the escape sequence \0, is called the null character. The null character is automatically appended to all strings by the C compiler. This character has an internal ... statements in Program 7-4/ in_ char in_ char get char ( ); / * get the next character typed * / tolower (in_ char); /* convert to lowercase */ may be combinedinto the single statement: in_ char = tolower(getchar(...
Ngày tải lên: 12/08/2014, 09:22
c for engineers and scientists introduction to programming with ansi c phần 8 ppt
... defined in calc_net ( ) are two com- pletely different structures. Any changes made to the local temp structure in calc_net ( ) are not reflected in the emp structure of main ( ). In fact, since both ... new version of the string copy function is: strcopy(char stringl[], char string2[]) { int i = 0; /* copy string2 to stringl */ while (stringl[i] ++i; return; string2 [i]) Notice that including the assignment ... along, copying element by element, until the end of the string is copied. One final change to the string copy function can be made by including the pointer increments as postfix operators within the...
Ngày tải lên: 12/08/2014, 09:22
c for engineers and scientists introduction to programming with ansi c phần 9 pdf
... function definitions in ANSI C and their corr~- sponding definitions in the original C: ' 567 ANSIC int main (void) { int quotient (int i, int j) { double chebyshev(int n, float xl { Original ... C program has been created, it can be com- piled and linked using the command TCC. For example, issuing the command C& gt; TCC hello .c would cause the compiler to compile and link the hello. C program. ... bits of each character value input into a variable named ch. (Hint: Assuming each character is stored using eight bits, start by using the hexadecimal mask 80, which corresponds to the binary number 10000000. If the...
Ngày tải lên: 12/08/2014, 09:22
Programming in Objective-C 2.0 edition phần 1 ppt
... instance or object contains not only information about its initial characteristics acquired from the factory, but also its current characteristics.Those charac- teristics can change dynamically.As ... http://www.simpopdf.com 24 Chapter 2 Programming in Objective -C The percent character inside the first argument is a special character recognized by the NSLog function.The character that immediately ... in mind when writing a particular program or a particular sequence of statements. You can insert comments into an Objective -C program in two ways. One is by using two consecutive slash characters...
Ngày tải lên: 12/08/2014, 23:22
Programming in Objective-C 2.0 edition phần 2 docx
... alloc] init]; Calculator *deskCalc; deskCalc = [[Calculator alloc] init]; [deskCalc clear]; [deskCalc setAccumulator: 100.0]; [deskCalc add: 200.]; [deskCalc divide: 15.0]; [deskCalc subtract: ... a single character enclosed in single quotes, with a C- style character string, which is any number of characters enclosed in double quotes.As mentioned in the last chapter, a string of characters ... Objective -C compiler treats the character ’\n’ as a single character, even though it is actually formed by two characters. Other special char- acters are initiated with the backslash character....
Ngày tải lên: 12/08/2014, 23:22
Questions to .NET and Programming in C#
... when the object is accessed. c) A static constructor can have public as a accessibility modifiers 74. class A { public static int X = B.Y + 1; } class B { public static int Y = A.X ... explicitly or implicitly. b) Static constructors can have accessibility modifiers. e) Static constructors are called when the class is loaded. c) Static constructors cannot be called ... error. c) Incompatible type for ’=’ can’t convert SubClass to SuperClass. b) No constructor matching SuperClass() found in class SuperClass d) Wrong number of arguments in constructor....
Ngày tải lên: 21/08/2012, 15:55
Questions to .NET and Programming in C#
... implementing an abstract class. [1.0] a) public abstract void class ClassA c) abstract public ClassA b) public abstract class ClassA 105. Which of the following methods can be called ... ("MyDll.MyOName" ) object myObject = System.Activator .C reatInstance (myObjectType) b) By using the System.Reflection. CreateInstance() method to create an instance of object in the following manner. ... In Finally 187. Imagine that you have two .cs files. The alpha.cs file contains a class called Alpha that contains an internal method called Method. The beta.cs file contains a class called...
Ngày tải lên: 29/08/2012, 16:37