CODEWITHSUNDEEP
objective-c
user2461049
user2461049

Reputation: 3

Rounding result to 2 decimal places

I have rounded the 'legInches' but how do I round this to 2 decimal points instead of none?

specifically - (int)round(legInches)

result = (isTitle)? @"Leg Span" : [NSString stringWithFormat:@"%dcm / %din", (int)legCentimetres, (int)round(legInches)];

Upvotes: 0

Views: 84

Answers (1)

rmaddy
rmaddy

Reputation: 318804

The simple approach:

result = (isTitle)? @"Leg Span" : [NSString stringWithFormat:@"%dcm / %.2fin", (int)legCentimetres, legInches];

But this doesn't format the number properly for people that expect something other than a period for the decimal separator. For that you should use an NSNumberFormatter.

NSNumberFormatter *formatter = [[NSNumberFormatter alloc] init];
[formatter setNumberStyle:NSNumberFormatterDecimalStyle];
[formatter setMaximumFractionDigits:2];
NSString *legInchesStr = [formatter stringFromNumber:@(legInches)];

result = (isTitle)? @"Leg Span" : [NSString stringWithFormat:@"%dcm / %@in", (int)legCentimetres, legInchesStr];

Upvotes: 1

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