ios - How to use comma method to make calculator -


I am now applying a calculator. In some way, I can show the number to display as NSString but, I want to add a number of commas in the display. I searched the method (comma) for adding numbers, but I'm not sure how to use the method. I would like to change DisplayNumber (without commas) with DisplayNumber (with commas) through the CreateStringAddedCommaFromInt method. How should I solve?

* DisplayNumber, firstNumber, secondNumber int. 

  - Show zero (show) = DisplayNumber = firstNumber + secondNumber; LabelTotal.text = [NSString stringWithFormat: @ "% g", DisplayNumber]; } - (NSString *) createStringAddedCommaFromInt: (NSInteger) number {NSNumberFormatter * format = [[NSNumberFormatter alloc] init]; [Format set number number: NSNumberFormatterDecimalStyle]; [Format Set Sooming Separator: @ ","]; [Format set set size: 3]; Return [Format StringFor Object Value: [NSNumber NumberWind: Number]]; }  
 
 In addition to setting the grouping separator, you will see the  NSNumberFormatter  To use it:    NSNumberFormatter * format = [[NSNumberFormatter alloc] init]; format.locale = [NSLokel runs]; // & lt; & Lt; == Do not forget to set locale [Format setNumberStyle: NSNumberFormatterDecimalStyle]; [Format Set Sooming Separator: @ ","]; [Format set set size: 3]; format.uses grouping separator = yes; // & lt; & Lt; == Add this line   
 This should produce a number with a comma separator.

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