Rounding off floating values

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Hi there, how can i round off a floating number to an int (non floating value)

E.g 22.69 To 23
19.7 To 20
16.5 To 17

17.4 To 17
17.2 To 17

I have tried to cast float or double to int but i don't get the desired results

Foristance,i have tried

double number = 19.7;

int number2=(int)(number)

number2=19;
This is not what i want to achieve

Thanks in advance

Yours Martin

Posted 22-Jul-11 7:39am

katumbamartin

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Comments

Sergey Alexandrovich Kryukov 22-Jul-11 18:09pm

Your operation using a type case is not rounding -- not at all.
--SA

4 solutions

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Dimitris Vasiliadis · Answer 1 · 2011-07-22T07:57:00

Solution 1

Try using Math round

Posted 22-Jul-11 7:57am

Dimitris Vasiliadis

Dave Kreskowiak · Answer 2 · 2011-07-22T07:58:00

Solution 2

You need to use Math.Round(value, MidpointRoundingMode)[^]. You need to use the AwayFromZero option.

Make sure you read the entire page before you go screwing up your code.

Posted 22-Jul-11 7:58am

Dave Kreskowiak

Comments

DominicZA 22-Jul-11 14:29pm

This is not entirely correct. He should just need to parse the float in as a parameter.

DominicZA · Answer 3 · 2011-07-22T07:59:00

Solution 3

System.Math.Round(myNumber);

That's right I think.

Posted 22-Jul-11 7:59am

DominicZA

Updated 22-Jul-11 8:04am

v3

Comments

DominicZA 22-Jul-11 14:05pm

Sorry, if you saw my my unedited answer :P I was typing from my phone!!

#realJSOP · Answer 4 · 2011-07-22T08:09:00

Solution 4

Math.Round() - rounds the way you tell it to
Math.Ceiling() - rounds up to nearest whole number
Math.Floor() - rounds down to the nearest whole number

Posted 22-Jul-11 8:09am

#realJSOP