zxing barcode scanner java Baking a cake in Objective-C

Drawing QR Code 2d barcode in Objective-C Baking a cake

Listing 4-1 Baking a cake
QR Code ISO/IEC18004 Recognizer In Objective-C
Using Barcode Control SDK for iPhone Control to generate, create, read, scan barcode image in iPhone applications.
Encode Quick Response Code In Objective-C
Using Barcode creation for iPhone Control to generate, create QR image in iPhone applications.
#import <Foundation/Foundationh> typedef struct ingredient_struct { BOOL mixed; } ingredients; typedef struct cake_struct { BOOL cooked; } cake; ingredients gather_ingredients(void) { NSLog(@"gathering"); ingredients myIngredients; myIngredientsmixed = NO; return myIngredients; } void mix_ingredients(ingredients * ptheIngredients) { NSLog(@"mixing"); ptheIngredients->mixed = YES; } cake cook_in_oven(ingredients theIngredients) { NSLog(@"cooking"); cake theCake; theCakecooked = YES; return theCake; }
Scanning QR Code In Objective-C
Using Barcode scanner for iPhone Control to read, scan read, scan image in iPhone applications.
Barcode Generation In Objective-C
Using Barcode printer for iPhone Control to generate, create bar code image in iPhone applications.
4: Classes, Objects, and Messaging
QR Code Creation In C#.NET
Using Barcode printer for .NET Control to generate, create QR Code image in .NET applications.
Print QR Code JIS X 0510 In .NET
Using Barcode encoder for ASP.NET Control to generate, create QR Code image in ASP.NET applications.
cake bake_cake(void) { NSLog(@"baking"); ingredients myIngredients = gather_ingredients(); mix_ingredients(&myIngredients); cake myCake = cook_in_oven(myIngredients); return myCake; } int main (int argc, const char * argv[]) { NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init]; cake aCake = bake_cake(); NSLog(@"Baked a cake %@",aCakecooked @"YES":@"NO"); [pool drain]; return 0; }
Make QR Code In .NET Framework
Using Barcode generator for .NET Control to generate, create QR Code ISO/IEC18004 image in VS .NET applications.
QR Code ISO/IEC18004 Generation In Visual Basic .NET
Using Barcode encoder for .NET framework Control to generate, create QR Code ISO/IEC18004 image in .NET applications.
Listing 4-2
Bar Code Printer In Objective-C
Using Barcode generation for iPhone Control to generate, create bar code image in iPhone applications.
EAN / UCC - 13 Printer In Objective-C
Using Barcode encoder for iPhone Control to generate, create GTIN - 13 image in iPhone applications.
Debugger console output
Barcode Creator In Objective-C
Using Barcode generation for iPhone Control to generate, create barcode image in iPhone applications.
Barcode Generation In Objective-C
Using Barcode drawer for iPhone Control to generate, create barcode image in iPhone applications.
baking gathering mixing cooking Baked a cake YES
Create UPC - 8 In Objective-C
Using Barcode encoder for iPhone Control to generate, create EAN8 image in iPhone applications.
ANSI/AIM Code 39 Maker In Java
Using Barcode creation for Java Control to generate, create Code39 image in Java applications.
The program in Listing 4-1 has no classes, objects, or other object-oriented concepts Instead it is a purely procedural program The program begins baking a cake by calling the bake_cake function This function in turn calls the gather_ingredients, mix_ ingredients, and cook_in_oven functions; there is a one-to-one correspondence between the tasks in Figure 4-1 and the functions in Listing 4-1 Also notice that structs, further refined as a typedef, define each data item And finally, notice that in the mix_ingredients function, unlike the other C functions used throughout the last few chapters, you use a pointer; real C programmers use pointers
Scan Barcode In VB.NET
Using Barcode reader for .NET Control to read, scan read, scan image in .NET framework applications.
1D Barcode Generator In Visual C#.NET
Using Barcode encoder for Visual Studio .NET Control to generate, create Linear Barcode image in .NET framework applications.
Object-Oriented Programming: Classes and Objects
Code128 Generation In Objective-C
Using Barcode drawer for iPad Control to generate, create Code 128 image in iPad applications.
Barcode Printer In Java
Using Barcode maker for BIRT reports Control to generate, create barcode image in BIRT applications.
Procedural programming was the norm until the 1990s, when object-oriented programming languages such as Smalltalk and C++ became more popular Objectoriented programming, in contrast to procedural programming, uses data structures that interact with each other These data structures contain both data and methods that can operate on that data A program s execution flow is from the interaction of these data structures
Barcode Drawer In Visual Studio .NET
Using Barcode creator for ASP.NET Control to generate, create bar code image in ASP.NET applications.
Data Matrix Encoder In Objective-C
Using Barcode generation for iPad Control to generate, create Data Matrix image in iPad applications.
Objective-C for iPhone Developers: A Beginner s Guide
Lookup stock Stock symbol Online trading (external) [count =< 1]
Determine how many can buy
Stock
[count >= 1] Buy shares Shares Online trading (external)
Record sale Storage
Figure 4-2 Activity diagram for purchasing a stock
Consider the activity diagram in Figure 4-2 Suppose you wish to purchase a stock The first task is to obtain a stock Obtaining a stock is nothing more than using its symbol to look up its name, last price, and last date from an external stock trading system After obtaining the stock, you determine how many shares you can buy You then reach a decision point: if you cannot buy at least one share, then you are finished If you can buy one or more shares, you continue to the next step, buying shares You then buy shares After buying shares, you store the purchase in an external data source such as a database, and then you are finished
Ask the Expert
Q: A:
Shouldn t you explain an activity diagram An activity diagram analyzes a workflow The ovals represent activities; the arrows between activities represent transitions Text labeling the transitions represents guard conditions A guard condition is something that must be true to progress to the next activity Figure 4-2 is an activity diagram modeling how I envision the process of buying a stock For more information on activity diagrams, refer to UML Demystified, or refer to Wikipedia s page on the subject (http://enwikipediaorg/wiki/Activity_diagram)
4: Classes, Objects, and Messaging
Notice the data flow through Figure 4-2 Looking up a stock results in a stock, which is the input for determining how many shares you can buy Determining how many shares you can buy results in a count If the count is greater than 0, you buy shares Buying shares results in owned shares, and you record the sale and store it Like procedural analysis, object-oriented analysis often begins by reviewing activities and data flow However, unlike procedural analysis, it does not then implement the activities as functions Instead, object-oriented analysis first analyzes the objects, or nouns, that compose an activity like Figure 4-2
NOTE
Another form of analysis, typically performed before activity analysis, is called use case analysis Use case analysis typically occurs after you gather a client s requirements but before conducting activity analysis Use cases are the basis for transforming written requirements into more formal analysis and design Refer to UML Demystified or Wikipedia s page on the subject (http://enwikipediaorg/wiki/Use_case_diagram) for more information on use case analysis
Copyright © OnBarcode.com . All rights reserved.