Difference between revisions of "Objective-C"
From Wikicliki
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=== Get Xcode === | === Get Xcode === | ||
| − | + | == Basics == | |
| + | === Data types in Objective-C === | ||
| + | * int (integer) | ||
| + | * unsigned int | ||
| + | * float (floating point number) | ||
| + | * double (double precision) | ||
| + | * char (a, b, c) | ||
| + | * string ("a string") | ||
| + | * bool (true/false) | ||
| + | === Initialisation === | ||
| + | int myInteger; | ||
| + | int myInteger = 42; | ||
| + | int myInteger, myInteger2, myInteger3; | ||
| + | === Operators === | ||
| + | operators - as normally expected except there is also "modulo" | ||
| + | % - result will be the remainder from the integer division of the 1st by the 2nd | ||
| + | (only for int or long, insert some caveat here about floats and doubles and using [http://www.cplusplus.com/reference/cmath/fmod/ fmod]) | ||
| + | eg: int moduloResult = a % b; | ||
| + | === NSLog === | ||
== See also == | == See also == | ||
Revision as of 09:17, 21 February 2013
Objective-C is a superset of C language and it is called objective-c because it is a object-oriented language.
Contents
What one needs in order to program in Objective-C
- Source Code Editor (Xcode)
- Compiler (Xcode)
- Program to design the interface (Interface Builder - which is now built into Xcode)
- Debuggers (Instruments)
Get Xcode
Basics
Data types in Objective-C
- int (integer)
- unsigned int
- float (floating point number)
- double (double precision)
- char (a, b, c)
- string ("a string")
- bool (true/false)
Initialisation
int myInteger; int myInteger = 42; int myInteger, myInteger2, myInteger3;
Operators
operators - as normally expected except there is also "modulo" % - result will be the remainder from the integer division of the 1st by the 2nd (only for int or long, insert some caveat here about floats and doubles and using fmod) eg: int moduloResult = a % b;
