Objective-C / Java Question

[Mvkoe]

Hey

So I'm learning Objective-C with a Java background. It turns out quite good atm. I'm dutch and learning it with a English book. Sometimes I'm not understanding things, but that's why i'm asking it here!

In Java you have a Default Constructor, and you can edit the constructor like in the example.

	public Date (int day, int month, int year){
		setYear(day);
		setMonth(month);
		setDay(year);
	}

How is this handeled by Objective-C, anyone has an example for this ?

Further I know you can't really use get in your Getter methods because Cocoa would argue sometimes.

public class Date {

	private int year;
	private int month;
	private int day;
	
	public Date (){
		
	}
	
	public Date (int day, int month, int year){
		setYear(day);
		setMonth(month);
		setDay(year);
	}
	
	public void setYear(int year){
		
	}
	
	public void setMonth(int month){
		
	}
	
	public void setDay(int day){
		
	}
	
	public int getYear(){
	
	}
	
	public int getMonth(){
	
	}
	
	public int getDay(){
	
	}
}

[mfram]

Originally Posted by Mvkoe

In Java you have a Default Constructor, and you can edit the constructor like in the example.

	public Date (int day, int month, int year){
		setYear(day);
		setMonth(month);
		setDay(year);
	}

How is this handeled by Objective-C, anyone has an example for this ?

There's no real concept of a "constructor" in Obj-C. Instead, the standard is to create initialization routines. Something like:

-(void)initWithDay:(int)day withMonth:(int)month withYear:(int)year;

Date *d = [[Date alloc] initWithDay:1 withMonth:1 withYear:2013];

Further I know you can't really use get in your Getter methods because Cocoa would argue sometimes.

	public void setYear(int year){	
	}
	
	public int getYear(){
	}
}

Use @property. It will generate this code for you automatically.

[Mac_Max]

You can also create custom getters and setters if you'd like:

 @property(getter=getFoo, setter=setFoo:) NSData *foo;

[ArtOfWarfare]

Originally Posted by Mac_Max

You can also create custom getters and setters if you'd like:

 @property(getter=getFoo, setter=setFoo:) NSData *foo;

Or just skip properties altogether... There's no reason you can't just use setters and getters (but there's less boilerplate code involved if you use properties.)