Re: How to format number
Lee Chin Khiong wrote:
How to format a double in JSP or java ?
for example :
10/3=3.3
I want to format it to 3.33.
Try realToString(3.33, 2) with this:
/** Convert a float to a string with fixed number of fraction digits
*/
public static String realToString(float f, int numFracDigits, Locale
locale)
{
NumberFormat fmt = NumberFormat.getInstance(locale);
fmt.setMaximumFractionDigits(numFracDigits);
fmt.setMinimumFractionDigits(numFracDigits);
return fmt.format(f);
}
or for default locale:
/** Convert a float to a string with fixed number of fraction digits
*/
public static String realToString(float f, int numFracDigits)
{
NumberFormat fmt = NumberFormat.getInstance();
fmt.setMaximumFractionDigits(numFracDigits);
fmt.setMinimumFractionDigits(numFracDigits);
return fmt.format(f);
}
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Re: How to format number
There are some non-standard nice library classes you can use for this purpose. Just google it. These classes enable you to format things like you are working with c/c++. Lee Chin Khiong [EMAIL PROTECTED] wrote: How to format a double in JSP or java ? for example : 10/3=3.3 I want to format it to 3.33. - Do you Yahoo!? The New Yahoo! Shopping - with improved product search
Re: How to format number
Check out the class java.text.DecimalFormat from the j2se SDK. Mark Lenz Software Engineer Control Systems Group Pierce Manufacturing, Inc. (920) 832-3523 [EMAIL PROTECTED] |-+ | | Lawence | | | [EMAIL PROTECTED]| | | o.com | | || | | 10/07/2003 10:44 | | | AM | | | Please respond to| | | Tomcat Users| | | List| | || |-+ ---| | | | To: Tomcat Users List [EMAIL PROTECTED] | | cc: | | Subject: Re: How to format number | ---| There are some non-standard nice library classes you can use for this purpose. Just google it. These classes enable you to format things like you are working with c/c++. Lee Chin Khiong [EMAIL PROTECTED] wrote: How to format a double in JSP or java ? for example : 10/3=3.3 I want to format it to 3.33. - Do you Yahoo!? The New Yahoo! Shopping - with improved product search This email has been scanned for all viruses by the MessageLabs Email Security System. For more information on a proactive email security service working around the clock, around the globe, visit http://www.messagelabs.com The information contained in this electronic mail message is confidential information and intended only for the use of the individual or entity named above, and may be privileged. If the reader of this message is not the intended recipient, you are hereby notified that any dissemination, distribution or copying of this communication is strictly prohibited. If you have received this transmission in error, please contact the sender immediately, delete this material from your computer and destroy all related paper media. Please note that the documents transmitted are not intended to be binding until a hard copy has been manually signed by all parties. Thank you. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: How to format number
Try to use java.text.NumberFormat NumberFormat nf= NumberFormat.getInstance(); nf.setMaximumFractionDigits(2); nf.setMinimumFractionDigits(2); Double number = 10/3; String snumber = nf.format(number); -Original Message- From: Lawence [mailto:[EMAIL PROTECTED] Sent: Tuesday, October 07, 2003 11:44 AM To: Tomcat Users List Subject: Re: How to format number There are some non-standard nice library classes you can use for this purpose. Just google it. These classes enable you to format things like you are working with c/c++. Lee Chin Khiong [EMAIL PROTECTED] wrote: How to format a double in JSP or java ? for example : 10/3=3.3 I want to format it to 3.33. - Do you Yahoo!? The New Yahoo! Shopping - with improved product search - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: RE: How to format number
In JSP, the easiest is to use the formatNumber tag of the JSTL I18N library. For
example, the following JSP page:
lt;%@ taglib uri=quot;http://java.sun.com/jsp/jstl/fmtquot; prefix=quot;fmtquot;
%gt;
lt;fmt:formatNumber value=quot;0.3quot; maxFractionDigits=quot;2quot;/gt;
lt;br/gt;
lt;fmt:formatNumber value=quot;0.33533quot; maxFractionDigits=quot;2quot;/gt;
lt;br/gt;
lt;fmt:formatNumber value=quot;0.3quot; minFractionDigits=quot;2quot;
maxFractionDigits=quot;2quot;/gt;
lt;br/gt;
lt;fmt:formatNumber value=quot;${10/3}quot; minFractionDigits=quot;2quot;
maxFractionDigits=quot;2quot;/gt;
gives you:
0.33
0.34
0.30
3.33
Don't forget to copy the jstl.jar and standard.jar to your WEB-INF/lib. Also, if you
are using Tomcat 4, you can't enjoy the EL expression in the last formatNumber.
Hope this helps,
budi
gt; Lee Chin Khiong wrote:
gt; How to format a double in JSP or java ?
gt;
gt; for example :
gt;
gt; 10/3=3.3
gt;
gt; I want to format it to 3.33.
gt;
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How to format number
How to format a double in JSP or java ? for example : 10/3=3.3 I want to format it to 3.33.
Re: How to format number
Look into the java.text package, you'll find a Number formatter there.. or if you dont want a String, use Math.round() - Original Message - From: Lee Chin Khiong [EMAIL PROTECTED] To: 'Tomcat Users List' [EMAIL PROTECTED] Sent: Monday, October 06, 2003 6:37 PM Subject: How to format number How to format a double in JSP or java ? for example : 10/3=3.3 I want to format it to 3.33. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
