Constructor in Objective-C

Question

I have created my iPhone apps but I have a problem. I have a classViewController where I have implemented my program. I must alloc 3 NSMutableArray but I don't want do it in grapich methods. There isn't a constructor like Java for my class?

// I want put it in a method like constructor java  arrayPosition = [[NSMutableArray alloc] init]; currentPositionName = [NSString stringWithFormat:@"noPosition"]; 

Answer 1

Yes, there is an initializer. It's called -init, and it goes a little something like this:

- (id) init {   self = [super init];   if (self != nil) {     // initializations go here.   }   return self; } 

Edit: Don't forget -dealloc, tho'.

- (void)dealloc {   // release owned objects here   [super dealloc]; // pretty important. } 

As a side note, using native language in code is generally a bad move, you usually want to stick to English, particularly when asking for help online and the like.

Answer 2

/****************************************************************/ - (id) init  {   self = [super init];   if (self) {     // All initializations you need   }   return self; } /******************** Another Constructor ********************************************/ - (id) initWithName: (NSString*) Name {   self = [super init];   if (self) {     // All initializations, for example:     _Name = Name;   }   return self; } /*************************** Another Constructor *************************************/ - (id) initWithName:(NSString*) Name AndAge: (int) Age {   self = [super init];   if (self) {     // All initializations, for example:     _Name = Name;     _Age  =  Age;   }   return self; }