How to split string into substring?

Question

I want to split the below string into sub string, string = 000000000000000000111111111111111111111111000000. How to split like we have 48 characters in the mentioned string? I want to separate each character into an array so that I can fetch the values based on the index.

Possible duplicate: [convert nsstring into char array][1] [1]: http://stackoverflow.com/questions/3581532/convert-nsstring-into-char-array — Marco Pace, Jun 01 '12 at 08:50

score 2 · Answer 1 · answered Jun 01 '12 at 08:51

2

What about

unichar aCharacter = [string characterAtIndex: charIndex];

answered Jun 01 '12 at 08:51

JeremyP

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score 1 · Answer 2 · answered Jun 01 '12 at 08:52

If you want to retrieve a certain character you can use [(NSString *)string characterAtIndex:(int)index];

e.g. get the char at index 0

unichar character = [string characterAtIndex:0];

NSString characterAtIndex:

If you want to split the string into substrings then you can use the split/substring functions – substringFromIndex:, – substringWithRange: and – substringToIndex:. There are lots more methods which you can use as well. Have a look at the NSString dev reference

score 0 · Answer 3 · answered Nov 06 '16 at 11:12

0

By using toCharArray() method See this

String str="000000000000000000111111111111111111111111000000";
char[] cr=str.toCharArray();
System.out.println(cr[18]);//output:1

answered Nov 06 '16 at 11:12

score 0 · Answer 4 · answered Apr 17 '17 at 11:24

Using the blow code you can fetch the string with the index

NSMutableArray * stringArray = [[NSMutableArray alloc]init];
for (int i=0; i<yourString.length; i++) {
    [stringArray addObject:[NSString stringWithFormat:@"%c",[yourString characterAtIndex:i]]];
}
NSLog(@"string %@",stringArray);

How to split string into substring?

4 Answers4