Very cool.
-----Original Message----- From: Nathan Tenney [mailto:[EMAIL PROTECTED]] Sent: Wednesday, September 04, 2002 11:21 AM To: JDJList Subject: [jdjlist] Re: Getting digits from an integer As a side note, Integer arithmetic in Java doesn't round, it truncates. So, this could be accomplished more simply just by dividing by a power of 10. For example, if your number was 123, and you wanted the first digit, you would divide by 100 (10^2). To get the 2, you would divide by 10 (10^1), and to get the 3, you would divide by 1 (10^0). So quite simply, a function like this one would suffice. //This function assumes that pos starts at zero (the right most //digit) and goes to n-1, where n is the number of digits in the //number. int getDigit(int pos, int num){ //It is ok to typecase Math.pow here because we are dealing //with integers only. int digitpos = (int)Math.pow(10,pos); if(num > digitpos) return num/digitpos; else //There is no number at this position return -1; } --- Jeff Fisher <[EMAIL PROTECTED]> wrote: > Thanks, never thought about the simple way. > > -----Original Message----- > From: Joseph Ottinger [mailto:[EMAIL PROTECTED]] > Sent: Wednesday, September 04, 2002 8:12 AM > To: JDJList > Subject: [jdjlist] Re: Getting digits from an > integer > > > You could always try simple math and simple logic. > Try neatoriffic stuff > like this: > > public int getFirstDigit(int value) { > int rounded=(value/10)*10; > int result=value-rounded; > return result; > } > > >From: Jeff Fisher <[EMAIL PROTECTED]> > >Reply-To: "JDJList" <[EMAIL PROTECTED]> > >To: "JDJList" <[EMAIL PROTECTED]> > >Subject: [jdjlist] Getting digits from an integer > >Date: Wed, 4 Sep 2002 07:59:02 -0400 > > > >I need to be able to get each individual digit from > an integer as an > >integer. I think I should be able to do this by > using the >> operator, but > >I just can't seem to figure it out. > > > >For example if I have a number 123, I need to get > 3, then the 2, then the > >1. > >It doesn't really matter the order, I just need the > digits. I suppose I > >could convert it to a string and go that route, but > that seems like a > >waste. > > > >Does anyone have experience with this or can point > me to some > >examples/information. > > > >Thanks > > > >Jeff > > > >To change your JDJList options, please visit: > >http://www.sys-con.com/java/list.cfm > > > > > _________________________________________________________________ > MSN Photos is the easiest way to share and print > your photos: > http://photos.msn.com/support/worldwide.aspx > > > To change your JDJList options, please visit: > http://www.sys-con.com/java/list.cfm > > To change your JDJList options, please visit: http://www.sys-con.com/java/list.cfm ===== ---------------------------------- Nathan Tenney Alumni Utah State University [EMAIL PROTECTED] ---------------------------------- __________________________________________________ Do You Yahoo!? Yahoo! Finance - Get real-time stock quotes http://finance.yahoo.com To change your JDJList options, please visit: http://www.sys-con.com/java/list.cfm To change your JDJList options, please visit: http://www.sys-con.com/java/list.cfm
