Rounding to nearest 10,100,1000, etc.

Posted Date: 05 Sep 2009	Resource Type: Code Snippets	Category: C# Syntax
Author: ABitSmart	Member Level: Diamond
Rating:	Points: 10 (Rs 5)

The following code demonstrates how to round a number to the nearest 10 or 100 or 1000 or etc..


public int CustomCieling(int number)
{
    int start = 10;
    while( number/start != 0)
    {
        start = start*10;
    }

    return start;
}

The functionality is similar to the Math.Cieling function provided by the .Net framework. The difference is that, the Math.Cieling function rounds to the nearest integer greater than the number and my function rounds to the nearest 10's.

Test case input: 9
Test case output: 10

Test case input: 999
Test case output: 1000

Have fun.

For more details, visit http://abitsmart.com/?p=178

Responses to the resource: "Rounding to nearest 10,100,1000, etc."

Author: Mohan 06 Sep 2009 Member Level: Diamond Points : 1

Hi ABit,

Your Code is working for 9,99,999 perfectly.

But if i am giving 149,199,949 that time also it is return 1000.

Actually it should return like 150,200,950

Author: ABitSmart 07 Sep 2009 Member Level: Diamond Points : 1

Thank you very much for referring my post, appreciate your comments.

I did the test with your number and got 1000000000 as an answer. Which is correct. My code does rounding to the nearest 10,100,1000,10000 etc

Author: Mohan 07 Sep 2009 Member Level: Diamond Points : 0

Thanks for reply.

But you explain the code rounds near the 10's

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