Re: How do I round a number?

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#8060

From: Michael Campbell
Date: Mon, 23 Apr 2001 05:17

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"Yneel" <YneelBoreyl@zfa.pbz> jebgr va <3nr3o004$1_2@qarjf>:

> 
> I would like two divide two numbers and then round up the
> fractional part. For example if I divide two ints, 12/7 the 
> answer is 1.71 but Java will discard the .71 for an answer of
> 1 what I would really like to happen is to have it round up to 
> 2. How do I do this? Thanks

Well, to begin with if you're using ints, you're going to get an int 
result, as you saw.  So start using at least one floating point, so you 
get a floating point return.  (Look at the Java promotion rules for 
how/why this works.)

That said, the standard way of rounding (to the nearest unit, for 
example) is to add 0.5, and take the int result of that.

Something like:

x = (int)((12.0 / 7.0) + 0.5);

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Subject: Re: How do I round a number?
From: michael_s_campbell@yahoo.com (Michael Campbell)
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