如何从NSMutableArray（iPhone）获得第一个值？

Question

Now i am working in simple iphone application, i have stored some value in NSMutableArray like "{54.399, 196}","{-268.246, 273}". so i want to get 54.399 in first indexpath , how to get this, please help me

Thanks in Advance

Answer 1

It seems you have an Array of Arrays, so it would be:

[[myArray objectAtIndex:0] objectAtIndex:0];

Or using subscripting:

myArray[0][0];

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Edit :

Ok you have an Array of NSStrings . To do what you want (get the 53.399) do the following:

NSString *myString = [myArray objectAtIndex:0];
NSArray *stringComponents = [myString componentsSeparatedByString:@","];
NSString *myFinalString = [stringComponents objectAtIndex:0];

With subscripting:

NSString *myFinalString = [[myArray[0] componentsSeparatedByString:@","][0];

Answer 2

您可以使用

[[arrayObj objectAtIndex:0] objectAtIndex:0];