iphonesdk appending string issue

Question

i have a nsmutablearray which have 5 objects.

for example if it contain objects like apple, cat , ball, dog ,ant, i want them to append with comma separated that is like apple, cat , ball, dog ,ant. please help me with this.

edit

publishingpost //nsmutable array contains all these object

-(ibaction)post
{
nsstring *str;
nsstring *str2 =@",";
for(int i = 0; i< [publishingpost count]; i++){
nsstring *str = [publishingpost objectAtIndex:i];
//append both str1, str2 to generate comma separated objects

}

Answer 1

use - (NSString *)componentsJoinedByString:(NSString *)separator instead:

- (IBAction)post {
   NSString * str = [publishingpost componentsJoinedByString:@", "];
}

Answer 2

Take a look at stringByAppendingString: or stringByAppendingFormat from here . It should be easy enough to do if you already have the Strings.

Declare an NSString object before the for loop (or use str ) and append to that while going through the loop. And you're not supposed to declare str twice in your code. Might want to rename one of them.