Programming in Objective C (Chapters 1 - 3) -
About this set
Created by:
GoatFeather on December 1, 2011
Subjects:
iOS, Objective C, programming, iPhone, iPad
Description:
These are flashcards for Chapters 1 through 3 of David Kochan's "Programming in Objective C." Please let me know what you think or if you have any suggestions. Thanks!!! :-)
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45 terms
Terms | Definitions |
|---|---|
 procedural programming language | A language in which programs are defined by procedures and functions that operate on a set of data |
| integral values | values without decimal places |
| Add an int to a NSString Object? | (@"The integer is %i", number) |
| newline character | \n (backslash n) |
| What means a program ends normally? | 0 |
| A constant NSString Object? | @"Strings Rule" (The "@" symbol indicates an NSString object) |
| What is an object? | A set of variables and associated methods. An object can be sent messages to cause one of it methods to be executed. |
| Print stuff in objective C? | NSLog(@"HelloWorld"); |
| main | A special name that indicates precisely where the program begins execution |
| Import a system file? | #import <Foundation/Foundation.h> |
| Import a file you created? | #import "myprog.h" |
| Compile at Command Line? | gcc -framework Foundation filename -o progname |
| Look in current directory? | ./ (period backslash) |
| GNU objective-c compiler? | gcc |
| Stop Sign | Fatal Error |
| Yellow exclamation mark | warning |
| .o | object file (compiled file) |
| .pl | perl source file |
| .mm | OBJECTIVE C++ source file |
| .m | OBJECTIVE C source file |
| .h | header file |
| .cc .cpp | c++ language source file |
| .c | C language source file |
| Who pioneered the C programming language? | Dennis Ritchie @ Bell Labs |
| The range of value associated with each data type is??? | machine depenedent |
| Data Encapsulation | Data for an object is sotred in its instance variables and is accessed only by the object's methods. This maintains data integrity. |
| How to combine alloc and init? | ClassName *newInstance = [ClassName new]; |
| Setters and Getters are referred to as? | accessor methods |
| Reference (pointer) | Holds a memory address "pointing" to the location of the object's data in memory |
| * | indicates it is creating a reference (or pointer) to an object |
| Free memory of an object? | [instanceName release]; |
| Combine three-line sequence to declare, allocate, and initialize? | ClassName *newInstance = [[ClassName alloc] init]; |
| Initialize an object? | newInstance = [newInstance init]; |
| Create a new instance? (allocate new memory space for object) | newInstance = [ClassName alloc]; |
| Define a new variable for a new instance of class? | ClassName newInstanceName; |
| In the @implementation section you? | Define the Methods |
| In the @interface section you? | Declare the Methods |
| + before method indicates? | Class Method |
| - before method indicates? | Instance Method |
| Method declarations in interface? | -(returnType) methodName: (argType) argName; |
| Syntax for using methods in Objective-C | [ClassOrInstance method]; [receiver message]; [receiver message: input]; |
| Applying a method to an object? | affects the "state" of that object |
| methods | The actions performed on the instance |
| instance | A unique occurence of class. A concrete representation of a class. Instances are objects, typically created by sending an "alloc" or "new" message to a class object |
| class | A set of instance variable and methods that have access to those variables. After a class is defined, instances of the class (that is objects) can be created. A blueprint. |
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