How to stopping rounding using decimal format

my problem is as
1. I am taking a double input in a jtextfield
2. Now i am using decimal format to round it to 6 decimal places
Now , how to make sure that decimal format while formatting do not round
like If input is 1.2345678 i want to get 1.234567 not 1.234568

That's not really an SCCSE.
Anyhow, why not just use Double.parseDouble() if you don't want any rounding etc. Don't forget to catch the NumberFormatException:
parseDouble
public static double parseDouble(String s)
throws NumberFormatException
Returns a new double initialized to the value represented by the specified String, as performed by the valueOf method of class Double.
Parameters:
s - the string to be parsed.
Returns:
the double value represented by the string argument.
Throws:
NumberFormatException - if the string does not contain a parsable double.
Since:
1.2
See Also:
valueOf(String)

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Rounding with decimal format

im trying to use decimal format and at the same time round numbers
code:
dformat = new DecimalFormat("0.0");
test = dformat.format(num);
but if num is .65 it just shows .6 when i need it to be .7
any suggestions.
thanks

because it uses BigDecimal.ROUND_HALF_EVEN rounding mode, as per the API docs saying so......
... of course, for the life of me (I blame it on Monday.... yes, I know it's not Monday.... still) I can't remember the right way to do it..........
sorry..
brain freeze warning...
must go home and reboot....

Help needed : Formatting a double using Decimal Format

Hi Everyone,
I am having trouble formatting doubles. Basically I recieve a double and an int that represents the number of decimal places.
From this I have to round the double. This is no problem, and is carried out as follows:
public static String roundDouble(double d, int scale){
BigDecimal big_decimal = new BigDecimal(d);
java.text.DecimalFormat formatter = new java.text.DecimalFormat();
formatter.applyPattern("########.#######");
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This work fine for me. (I use a DecimalFormatter to convert exponential in to actual). However my problem is that when my colleuge uses this method from a different locale it all goes wonky.
In my locale of UK given something like 0.92742999999999 with 4 dp I get
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formatter.applyPattern("########.#######");# before the decimal point have no effect on the format.
This work fine for me. (I use a DecimalFormatter to
convert exponential in to actual). However my problem
is that when my colleuge uses this method from a
different locale it all goes wonky.
In my locale of UK given something like
0.92742999999999 with 4 dp I get
0.9274. In his locale which is Germany, he gets
0,9274.0000The pattern for the UK should be ".#######"
The pattern for DE should be ",#######"
I assume I need to use
DecimalFormatter.applyLocalizedPattern, but what
should the pattern be?You can't hard code values into your code, use a properties file to localize your program.

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How do I convert this number "5.14562" to this format "$5.15".
I looked through the tutorials but wasn't sure how I would create the object or what to use.
Is it DecimalFormat twoDigits = new DecimalFormat("$#,###.00")?
What package do I have to import?
Thanks

Is it DecimalFormat twoDigits = new DecimalFormat("$#,###.00")?
Yes that's bang on.java.text.DecimalFormat twoDigits = new java.text.DecimalFormat("$#,###.00");
String answer = twoDigits.format(theDouble); // or theFloat

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Message was edited by: viraylab

Hi,
Check this...
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/docs/library/uuid/5931ff64-0a01-0010-2bb7-ff2f9a6165a0
Regards
vijay

Decimal format to 2 decimal places ????

Hello Everyone,
I have created a web dynpro application which to display a report depending on the data given by the BAPI. But there is some issue with the numeric data returned by the BAPI.
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Message was edited by:
Bharathwaj R

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Unfortunately, the uncertainty arising from the rounding has been up several times here in this forum.
I just came to remember a warning that needs to be given:
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Rounding to 2 decimal places WITHOUT using any formatting class

Hello
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OP:
BigDecimal is not a formatting class. Math.round isn't a class at all.
Typecasting doesn't really do that sort of thing at all (unless you count dropping fractional components when casting to an integer type).
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How to stopping rounding using decimal format

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