write a java function for rounding the whole integer number into its nearest round number for example: 53 to 60

Question

I want to write a java function for rounding the whole integer number into its nearest round number for example:

53 to 60
68 to 70
35 to 40
50 to 50
etc

Please show what you have tried yourself and describe the specific problem you are facing. — Filburt, Mar 03 '16 at 08:35
Possible duplicate of [Java Round up Any Number](http://stackoverflow.com/questions/4540684/java-round-up-any-number) — Arnaud, Mar 03 '16 at 08:37
I know @Vistari but the functionality I a working on needs the next round figure. — Snehal, Mar 03 '16 at 08:44

Bhavesh · Answer 1 · 2016-03-03T09:22:23.950

3

For your question nearest whole number would be for 53 -> 50 not 60

Any way for your question, it seems you need next multiple of 10. Very simple answer can be:

 ans = (input%10) ? ((input/10)+1)*10 : input

Which simplifies like to,

edited Mar 03 '16 at 09:22

answered Mar 03 '16 at 08:39

Bhavesh

This doesn't work for the 50->50 case. – Andy Turner Mar 03 '16 at 08:49
Thanks for pointing out error, i have corrected it now. – Bhavesh Mar 03 '16 at 09:14
`(52 % 10) + 1 = 3`? – Mar 03 '16 at 09:16
Sorry mistakenly written wrong code in the comment, corrected it now. – Bhavesh Mar 03 '16 at 09:24
This isn't actually valid Java. – Andy Turner Mar 03 '16 at 17:31
just have to define variables as integers otherwise it will work in java. – Bhavesh Mar 04 '16 at 06:10

Andy Turner · Answer 2 · 2016-03-03T08:50:18.740

0

To round a positive integer n up to the nearest (positive) multiple m:

(n + m - 1) / m

This avoids the unnecessary widening to double that you'd get by using Math.ceil.

e.g.

(n + 9) / 10

rounds up to the nearest 10.

edited Mar 03 '16 at 08:50

answered Mar 03 '16 at 08:42

Andy Turner

2 Answers2