CODEWITHSUNDEEP
iosobjective-cfor-loopnsmutablearray
Teja Nandamuri
Teja Nandamuri

Reputation: 11201

Create an array for an each object present in an array using for loop in objective c

I been searching for this but failed to find a proper solution. Is it possible to create an array for each object present in an array?Lets say I have an array 'fruits'

   NSMutableArray *fruits=[[NSMutableArray alloc]init];
   [fruits addObject:@"apple"];
   [fruits addObject:@"banana"];
   [fruits addObject:@"mango"];

Now there are three objects in my array. IS it possible to create an array for each of the object present in the array 'fruit'.

Can I do something like

   for(int i=0;i<fruits.count;i++){
    NSMutableArray *fruits_%d=[[NSMutableArray alloc]init];
    }

I know it is a blunder. Is there any way I can do that?

Thanks in advance.

Upvotes: 0

Views: 162

Answers (2)

Gustavo Barbosa
Gustavo Barbosa

Reputation: 1360

I don't know what exactly you want but maybe you can do something like this:

NSMutableArray *fruits = [[NSMutableArray alloc] init];
[fruits addObject:@"apple"];
[fruits addObject:@"banana"];
[fruits addObject:@"mango"]; 

NSMutableArray *arrayOfFruits = [[NSMutableArray alloc] initWithCapacity:fruits.count];
for (int i = 0; i < fruits.count; i++) {
    [arrayOfFruits addObject:@[fruits[i]]];
}

Upvotes: 1

Undo
Undo

Reputation: 25687

You could use a dictionary instead:

NSMutableDictionary *fruitDict=[[NSMutableDictionary alloc]init];
[fruitDict setObject:[[NSMutableArray alloc]init] forKey:@"apple"];
[fruitDict setObject:[[NSMutableArray alloc]init] forKey:@"banana"];
[fruitDict setObject:[[NSMutableArray alloc]init] forKey:@"mango"];

Or a little cleaner syntax:

NSMutableArray *fruits=[[NSMutableArray alloc]init];
[fruits addObject:@"apple"];
[fruits addObject:@"banana"];
[fruits addObject:@"mango"];

NSMutableDictionary *fruitDict = [[NSMutableDictionary alloc] init];

for (NSString *fruit in fruits)
{
    [fruitDict setObject:[[NSMutableArray alloc]init] forKey:fruit];
}

Then when you want to retrieve the array:

NSMutableArray *myArray = fruitDict[@"banana"]

The above code will yield the array for the banana item.

Upvotes: 2

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