programming in objective c 4th edition ebook

... with another Macrelated title, Beginning AppleScript (Wiley, 2004) About the Technical Reviewers Michael Trent has been programming in Objective-C since 1997—and programming Macs since well before ... Object-oriented programming (Computer science) Macintosh (Computer) Programming I Title QA76.73.O115K63 2009 005.1'17 dc22 2008049771 Printed in the United States of America First Printing December ... computers since the introduction of the first Mac in 1984, and he wrote Programming C for the Mac as part of the Apple Press Library In 2003 Kochan wrote Programming in Objective-C (Sams, 2003),

Ngày tải lên: 12/08/2014, 23:22

... thebackslash character is a special character in the Objective-C system and does not actuallycount as a character In other words, the Objective-C compiler treats the character ’\n’as a single character, ... semicolon, and the third is the character zero—which is not the same as thenumber zero Do not confuse a character constant, which is a single character enclosed insingle quotes, with a C-style character ... @character is an NSStringcharacter string ject ob-NoteAppendix B discusses methods for storing characters from extended character sets, through special escape sequences, universal characters,

Ngày tải lên: 12/08/2014, 23:22

... the x-coordinate of the rectangle’s origin. In a similar manner, the fol- lowing expression retrieves the y-coordinate of the rectangle’s origin: myRect.origin.y Classes Owning Their Objects Can ... alloc] init]; ClassA *a = [[ClassA alloc] init]; ClassB *b = [[ClassB alloc] init]; [a initVar]; // uses ClassA method [a printVar]; // reveal value of x; [b initVar]; // use overriding ClassB ... allocated in the program, including the XYPoint object that setOrigin: creates: [myRect release]; [myPoint release]; One issue remains: If you set the origin of a single Rectangle object to

Ngày tải lên: 12/08/2014, 23:22

... defined( GNUC ) #define NS_INLINE static inline_attribute_((always_inline)) #elif defined( MWERKS ) || defined( cplusplus) #define NS_INLINE static inline Trang 27Another common use of #ifis in ... @protocol Drawing3D <Drawing> Finally, a category also can adopt a protocol, like this: @interface Fraction (Stuff) <NSCopying, NSCoding> theNSCopyingandNSCodingprotocols As with class names, ... new category and some methods muddies the definition of the class and is notgood programming practice category can exist in a given Objective-C namespace.This can be tricky because the jective-C

Ngày tải lên: 12/08/2014, 23:22

... alloc] init]; void copyString (char *to, char *from); char string1[] = “A string to be copied.” 2 ; char string2[50]; copyString (string2, string1); charac-copyString.This reflects how the function ... previous character in text(assuming, of course, that textPtrwas not pointing to the beginning of textbefore this statement executed) Comparing two pointer variables in Objective-C is perfectly valid.This ... given by*intPtras an integer Unions One of the more unusual constructs in the Objective-C programming language is the union.This construct is used mainly in more advanced programming applications

Ngày tải lên: 12/08/2014, 23:22

... @”jbaker@kochan-wood.com”; AddressCard *card1 = [[AddressCard alloc] init]; AddressCard *card2 = [[AddressCard alloc] init]; AddressCard *card3 = [[AddressCard alloc] init]; AddressCard *card4 = ... *bName = @”Tony Iannino”; NSString *bEmail = @”tony.iannino@techfitness.com”; AddressCard *card1 = [[AddressCard alloc] init]; AddressCard *card2 = [[AddressCard alloc] init]; [card1 setName: aName ... AddressCard *card2 = [[AddressCard alloc] init]; AddressCard *card3 = [[AddressCard alloc] init]; AddressCard *card4 = [[AddressCard alloc] init]; AddressBook *myBook = [AddressBook alloc]; AddressCard

Ngày tải lên: 12/08/2014, 23:22

... stringWithString:was sent to the NSMutableStringclass, indicating that the string’scontents might have changed during the course of the program’s execution And becauseconstant character strings can’t ... reference count for myIntis matically decremented to 1 In general, removing an object from any collection has theside effect of decrementing its reference count.This implies that the following code ... garbage collection is on, methodcalls such as retain,autorelease, andreleaseare ignored Trang 20Copying Objects This chapter discusses some of the subtleties involved in copying objects.We introducethe

Ngày tải lên: 12/08/2014, 23:22

... shown in Figure 21.11. You can now close the Colors window. You create new objects in your iPhone interface window by click-dragging an object from the Library window into your iPhone window. Click-drag ... http://www.simpopdf.com 467 Your First iPhone Application Designing the Interface In Figure 21.4, and in your Xcode main window, notice a file called MainWindow.xib.An xib file contains all the information ... Writing iPhone Applications @property (nonatomic, retain) UIWindow *window; @property (nonatomic, retain) Fraction_CalculatorViewController *viewController; @end The UIWindow instance variable window

Ngày tải lên: 12/08/2014, 23:22

... function call with the actual code for the function itself, thus providing for faster execution.An example is shown here: inline int min (int a, int b) {... contain the converted floating-point ... interface declaration for a class called Point containing four instance variables: @interface Point: NSObject { @private int internalID; @protected float x; float y; @public BOOL valid; } The internalID ... instance method defined for the class, either in the interface section that explicitly defines the variable or in categories created for the class Inherited instance variables... + n produces

Ngày tải lên: 12/08/2014, 23:22

... computer 8 C Processing 9 C both what is to be calculated and how to calculate it 10 C entering the input items, then processing the input items, and then displaying, printing, or storing the output ... https://findtestbanks.com/download/an-introduction-to-programming-with-c-4th-edition-by-zak-solution-manual/ Link full download test bank: https://findtestbanks.com/download/an-introduction-to-programming-with-c-4th-edition-by-zak-test-bank/ ... discount rate 2 calculate the discount by multiplying the original price by the discount rate 3 calculate the sale price by subtracting the discount from the original price 4 display the discount

Ngày tải lên: 01/03/2019, 09:07

... function must contain the following two directives: #include <cstdlib> using namespace std; Display 3.3 A Function Call for a Predefined void Function 1 #include <iostream> 2 #include ... <cmath> This particular program has two include directives It does not matter in what order you give these two include directives include directives were discussed in Chapter 1 Definitions ... returned function call or function invocation #include directive Trang 394 Function BasicsUsually, all you need do to use a library is to place an include directive and a using directive for that

Ngày tải lên: 04/07/2014, 05:21

... subsection tells you how to define void functions Display 3.5 contains a sample function definition in a complete program that demon-strates a call to the function The function is called totalCost ... is called the function declaration or function prototype The following is the function declara-tion (funcdeclara-tion prototype) for the funcdeclara-tion defined in Display 3.5: double totalCost( ... items purchased: 2 Enter the price per item: $10.10 2 items at $10.10 each. Final bill, including tax, is $21.21 Function declaration; also called the function prototype Function call Function body

Ngày tải lên: 04/07/2014, 05:21

... body. You can call this technique the black box principle or the principle of procedural abstraction or information hiding. The three terms mean the same thing. Whatever you call this principle, ... Writing and using functions as if they were black boxes is also called procedural abstraction. When programming in C++ it might make more sense to call it func- tional abstraction. However, procedure ... should not include a call to main in your code. Only the system should call main, which it does when you run your program. 116 Function Basics Self-Test Exercises ■ RECURSIVE FUNCTIONS C++ does

Ngày tải lên: 04/07/2014, 05:21

... for both a circle and a sphere (in inches): 2 Radius = 2 inches Area of circle = 12.5664 square inches Volume of sphere = 33.5103 cubic inches global variable 124 Function Basics ■ BLOCKS A variable ... inner block and cannot be accessed outside that inner block. The other variable exists only in the outer block and cannot be accessed in the inner block. The two variables are distinct, so changes ... (assuming everything else is correct). The program will give the correct output (assuming everything else is correct). 22. The comment explains what action the function takes, including any

Ngày tải lên: 04/07/2014, 05:21

... 14, because 1 foot and 2 inches is the same as 14 inches Will the following function perform correctly? If not, why not? double totalInches(int feet, int inches) { inches = 12*feet + inches; ... finished 7 In cold weather, meteorologists report an index called the wind chill factor, which takes into account the wind speed and the temperature The index provides a measure of the chilling ... getNumbers(int& input1, int& input2); The call-by-reference formal parameters input1 and input2 are placeholders for the actual arguments used in a function call Now consider a function call

Ngày tải lên: 04/07/2014, 05:21

... 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 ... 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 ... entire C language before learning Objective- C is wrong. C is a procedural language containing many features that are not necessary for programming in Objective- C, especially at the novice level. In fact,...

Ngày tải lên: 18/02/2014, 12:20

... in C# . However, the type has a few non–CLS-compliant constructs causing the C# compiler to complain about the code. using System; // Tell compiler to check for CLS compliance [assembly: CLSCompliant(true)] ... performing advanced engineering or financial calculations. Through the CLR, you can write the I/O portions of your application in C# and then write the engineering calculations part in APL. The CLR ... any other programming language can access the construct. Consider the following type definition, which contains a constructor, a finalizer, some overloaded operators, a property, an indexer,...

Ngày tải lên: 06/03/2014, 15:20

... to: innovations in fingerprint development, * By David A. Stoney, Ph.D., Director, McCrone Research Institute, Chicago, and Clinical Professor of Forensic Science, University of Illinois at Chicago. 0923Ch01Frame ... determining the general pattern area of the latent print, a reference point is selected by the examiner to begin the search for matching characteristics in the inked print. The reference point ... German police forces commenced fingerprinting: Augsburg, Hamburg, and Nuremburg. In 1912, a conference of all German police forces took place in Berlin, at which it was concluded that identification...

Ngày tải lên: 18/04/2014, 10:14