... available Chapter 2, Programmingin Objective- C, ” begins by teaching you how to write your first program in Objective- C Because this is not a book on Cocoa or iOS programming, graphical user interfaces ... black belt Michael Trent has been programmingin Objective- C since 1997—and programming Macs since well before that He is a regular contributor to Steven Frank’s cocoadev.com website, a technical ... NSKeyedArchiver 427 Writing Encoding and Decoding Methods Using NSData to Create Custom Archives Using the Archiver to Copy Objects Exercises 407 408 429 436 439 441 20 Introduction to Cocoa and Cocoa...
... Stephen Kochan is the author and coauthor of several bestselling titles on the C language, including ProgramminginC (Sams, 2004), Programmingin ANSI C (Sams, 1994), and Topics inCProgramming (Wiley, ... the Technical Reviewers Michael Trent has been programmingin Objective- C since 1997—and programming Macs since well before that He is a regular contributor to Steven Frank’s www.cocoadev.com Web ... approach First, learning the entire C language before learning Objective- C is wrong C is a procedural language containing many features that are not necessary for programmingin Objective- C, especially...
... Calculator *deskCalc; deskCalc = [[Calculator alloc] init]; [deskCalc clear]; [deskCalc setAccumulator: 100.0]; [deskCalc add: 200.]; [deskCalc divide: 15.0]; [deskCalc subtract: 10.0]; [deskCalc multiply: ... storing characters from extended character sets, through special escape sequences, universal characters, and wide characters The character constant ’\n’, the newline character, is a valid character ... number zero Do not confuse a character constant, which is a single character enclosed in single quotes, with a C- style character string, which is any number of characters enclosed in double quotes.As...
... results [fraction isMemberOfClass: [Complex class]]; [complex isMemberOfClass: [NSObject class]]; [complex isKindOfClass: [NSObject class]]; [fraction isKindOfClass: [Fraction class]]; [fraction respondsToSelector: ... Execution continues! When the exception occurs, the @catch block gets executed.An NSException object that contains information about the exception gets passed as the argument into this block.As you can ... vector Define a new class called GraphicObject, and make it a subclass of NSObject Define instance variables in your new class as follows: int BOOL int fillColor; filled; lineColor; // 32-bit color...
... NS_INLINE static #elif defined(_MSC_VER) #define NS_INLINE static #elif defined( WIN32 ) #define NS_INLINE static #endif #endif inline_attribute_((always_inline)) defined( cplusplus) inline inline ... the preceding program, this corresponds directly to calculating Fibonacci[2] by adding the values Fibonacci[0] and Fibonacci[1].This calculation is performed inside the for loop, which calculates ... (Chapter 18,“Copying Objects,” covers the topic of copying objects in detail.) Here’s how the NSCopying protocol is defined in the standard Foundation header file NSObject.h: @protocol NSCopying...
... a character string object in Objective- C. The Foundation framework supports a class called NSString for working with character string objects.Whereas C- style strings consist of char characters, ... immutable string object instead The insertString:atIndex: method inserts the specified character string into the receiver beginning at the specified index number In this case, you insert the string @” ... pointers in Objective- C Pointers and Arrays If you have an array of 100 integers called values, you can define a pointer called valuesPtr, which you can use to access the integers contained in...
... respect to the Rectangle class owning its origin object in Chapter 8,“Inheritance.” Defining the two methods in the following way would also be an incorrect approach because the AddressCard methods ... @”jbaker@kochan-wood.com”; AddressCard *card1 = [[AddressCard alloc] init]; AddressCard *card2 = [[AddressCard alloc] init]; AddressCard *card3 = [[AddressCard alloc] init]; AddressCard *card4 = ... Foundation function NSSearchPathForDirectories InDomains, which you can use to locate special directories on the system, such as the Application directory Copying Files and Using the NSProcessInfo Class...
... http://www.simpopdf.com 440 Chapter 19 Archiving Writing Encoding and Decoding Methods Basic Objective- C class objects such as NSString, NSArray, NSDictionary, NSSet, NSDate, NSNumber, and NSData can be archived ... http://www.simpopdf.com 18 Copying Objects This chapter discusses versus of thecopying nd discussin copying objects.Weunder the some subtleties involved introduce the concept of shallow deep how to make copies ... basic data types encodeWithCoder: Table 19.1 Encoding and Decoding Basic Data Types in Keyed Archives Encoder Decoder encodeBool:forKey: decodeBool:forKey: encodeInt:forKey: decodeInt:forKey: encodeInt32:forKey:...
... Constant Character String Objects A constant character string object can be created by placing an @ character in front of a constant character string.The type of the object is NSConstantString ... implementation-defined.A universal character can be used in a character constant to specify a character not included in the standard character set Escape Sequences Special escape sequences are recognized ... @”http://www.kochan-wood.com”; character string object (Adjacent strings are concatenated.) @class c1 , c2 , Declares c1 , c2 , as classes @class Point, Rectangle; @defs (class) Returns a list of the structure...
... semantics associated with classes Class Definition A class definition consists of declaring the instance variables and methods in an interface section and defining the code for each method in an ... either in the interface section that explicitly defines the variable or in categories created for the class Inherited instance variables can also be accessed directly without any special declarations ... space for the actual data contained in each object.The declaration Fraction *myFract; defines myFract as a Fraction object or, technically, as a pointer to one.To allocate the actual space for the...
... available Chapter 2, Programmingin Objective- C, ” begins by teaching you how to write your first program in Objective- C Because this is not a book on Cocoa or iOS programming, graphical user interfaces ... black belt Michael Trent has been programmingin Objective- C since 1997—and programming Macs since well before that He is a regular contributor to Steven Frank’s cocoadev.com website, a technical ... NSKeyedArchiver 427 Writing Encoding and Decoding Methods Using NSData to Create Custom Archives Using the Archiver to Copy Objects Exercises 407 408 429 436 439 441 20 Introduction to Cocoa and Cocoa...
... stored in a character-defined column can be alphanumeric, which means that the data value may contain numeric characters VARBINARY is similar to VARCHAR and VARCHAR2 except that it contains a ... 11: Restructuring the Appearance of Data ANSI Character Functions 169 Common Character Functions 169 170 Miscellaneous Character Functions 179 Mathematical Functions 183 Conversion Functions ... user connects to a database, the SQL session is initialized The CONNECT command is used to establish a database connection With the CONNECT command, you can either invoke a connection or change connections...
... 9: Inline functions 281 Preprocessor pitfalls 281 Macros and access 284 Inline functions 285 Inlines inside classes 285 Access functions 286 Stash & Stack with inlines 292 Inlines ... Appending, inserting and concatenating strings 524 Replacing string characters 525 Concatenation using non-member overloaded operators 529 Searching in strings 530 Finding in reverse ... gentler introduction to C than the chapter in this book, I have created with Chuck Allison a CD ROM called “Thinking in C: foundations for Java and C+ +” which will introduce you to the aspects of C...
... program You can include C+ +-style comments within a block "commented out" by C- style comments; everything, including the C+ +-style comments, is ignored between the C- style comment marks Using Comments ... numbers: "; cin >> a; cin >> b; cout
... defined in a new class file called ShoppingCart.cs The ShoppingCart represents a collection of Product objects Listing 3-11. The ShoppingCart class using System.Collections.Generic; namespace ... Product instance in a single step, as shown in Listing 3-9 Listing 3-9. Using the object initializer feature using System; using System.Collections.Generic; using System.Linq; using System.Web; using ... ShoppingCart class using System.Collections.Generic; using System.Collections; namespace LanguageFeatures { public class ShoppingCart : IEnumerable { public List Products...