[jdjlist] Re: modf in in java

[Paul Franz]

Convert it into a string. (Possibly using the NumberFormat class) Then use
the indexOf (".") to get the decimal place and then convert the parts back
to integers. For example,

float num = 3.4;
String str = ""+num;
int wholeNumber = 0, decimalNumber = 0;

if (str.indexOf (".") > 0) // It should never be zero
   {
   String beforeDecimal, afterDecimal;

   afterDecimal = str.substring (str.indexOf (".") + 1);
   beforeDecimal = str.substring (0, str.indexOf ("."));

   try
      {
      wholeNumber = Integer.valueOf (beforeDecimal).intValue ();
      decimalNumber = Integer.valueOf (afterDecimal).intValue ();
      }
   catch (Throwable t)
      {
      }
   }
else
   {
   try
      {
      wholeNumber = Integer.valueOf (str).intValue ();
      }
   catch (Throwable t)
      {
      }
   }


Paul Franz
----- Original Message -----
From: "Jeff Fisher" <[EMAIL PROTECTED]>
To: "JDJList" <[EMAIL PROTECTED]>
Sent: Wednesday, September 04, 2002 8:01 AM
Subject: [jdjlist] modf in in java


> Does java have anything like the modf c function?  I checked the math
class,
> but there is just ciel and floor.  I can get the first part of the double
> value by casting as to an int, but the fractional part is not so easy.  I
> can get it as a double, but I'd like it as an integer.
>
> So what I'm trying to do here is split the number 123.45 into 123 and 45.
>
> Any thoughts?
>
> Thanks
>
> Jeff
>
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