Converting Double to String without exponent

Hi all,
I am reading some values from Excelsheet using apache POI library. I have large numbers that need to stored into database as string and not numbers. hence, while reading the excelsheet values, i convert these number.. and the are received as double. While converting double into string I noticed that some values are represented in exponential form.. I would like to avoid this and have pure number values in the form of string,,..
Can anybody tell me how to do it?
Thanks in advance,
Abdel Olakara

java.text.DecimalFormat

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Convert Double to String without zeros at the end

Hello,
how can i convert a double-numeric to a string? I know how can do it but not how i can do it in a fast way.
When i use the "Number to Fractional String"-Object then a number
1,2 --> is canged to 1,200000
1,0 --> changed to 1,000000
what can i do that there are no zeros at the end?
Currently i´m reading the reversed string in a loop to remove the zeros, but this i to slow i think.
Is there a fast way?
Thanks for your help

Extract from the LV help :
Select Tools»Options to display the Options dialog box and select
Front Panel from the Category list to display
this page.
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Converting double to String

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Converting double to strings

I'm having a problem in getting my double to convert to a string, here's my code so far.
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I am very new to Java Programming, but I am trying to
convert a double to a string
Here is some code of what I am trying to do:
String output = "";
Word words[] = new Word[ 7 ];
Then I add the "words" to the array
for ( int i = 0; i < words.length; i++ ) {
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output +="\nListed :" + Double.toString(words[ i
].listings()) + "\n";
return output;the listings method is type double. I think I can use
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sure how to go about doing it.
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Thanks.Wrong:
Double.toString(words[ i ].listings())
Right:
words[ i ].listings().toString()

Convert Double to String and Specify Precision

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Trouble converting "double like" string to integer

Hi everyone,
I have a trouble here. Let's say I have a string which its value is "314.12345667". the value is "like a double". How do i convert it into an integer where the integer only takes the value of da string before the decimal point (as in the value of string = 314 only)? Thanks for helping.

hi xamule,
tey this..
String s="314.123876"
double d=Double.parseDouble(s);
int x=d.intValue();
hope it may help u..
bye bye,
Pramod

Converting doubles to strings

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Convert Double To String

Hello,
I have the following method:
private String doubleToString(double value, int kommas)
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Thank you
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Re: convert double to string?

outputLabel.setText(String.valueOf(bmi));

Thank you all very much,
theoutputLabel.setText(String.valueOf(bmi));[/co
de] took care of the compiling, but the program
crashes when the calculate button is clicked and
returns a NULL POINTER EXCEPTION. This is my first
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Double.parseDouble(String) - problems when string is in scientific notation

Hello guys,
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Regards

i'm not quite sure whether double odoes not allow it.
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http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Double.html

Double.parseDouble(String) : Problem to parse large String

Hello,
I need to convert A String to a Double in my application without rounding of digits.
I have used the Double.parseDouble(String) method.
The maximum string length can be 17 including dot(.)
So if my String is (of length 17)
Eg.
S= �9999999999.999999� then I am getting the double value as
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But string length up to 16 is giving me the accurate result
So any body can explain me that why it is happening? And how can i get the accurate result.
Thanks in advanced.

Hi,
Thank You for your suggestion. By which i can store
the big double number in Data base , but at some
point i require to parse a double value from a Double
reference.In that case if the Decimal value length
=> 16 then it the last digit changes or rounds.
coverting 9999999999.999999 Decimal value to double
value. It gives me 9999999999.999998 and
9999999999.9999999 gives me the 10000000000.0000000.
but the Double value 999999999.999999 is ok
and 999999999.99999999 rounds.Err, is there a follow up question in there?

CIN: Converting a C String to a LabVIEW String

Hi all,
I have been developing CINs in Microsoft Visual C++ 6.0 for LabVIEW as
project needs. However, I am having a problem with converting a C String
to a LabVIEW String in CIN.
I used two ways to try to make the conversion work that were LStrPrintf
and MoveBlock as stated as following:
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#include "extcode.h"
#include "hosttype.h"
#include "windows.h"
struct teststrct{
const char* test;
struct teststrct testinstance;
typedef struct {
LStrHandle test
} TD1;
CIN MgErr CINRun(TD1 *testcluster, LVBoolean *Error) {
char *tempCStr = NULL;
strcpy(tempCStr, testinstance.test); // this would cause LabVIEW crash!
LStrPrintf(testcluster->test, (CStr) "%s", tempCSt
r);
// but if I assigned tempCStr as tempCStr = "test", the string value
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2. MoveBlock
#include "extcode.h"
#include "hosttype.h"
#include "windows.h"
struct teststrct{
const char* test;
struct teststrct testinstance;
typedef struct {
LStrHandle test
} TD1;
CIN MgErr CINRun(TD1 *testcluster, LVBoolean *Error) {
char *tempCStr = NULL;
int32 len;
tempCStr = (char *)&testinstance.test; //since strcpy didn't work, I
used this way to try to copy the const char* to char*.
len = StrLen(tempCStr);
if (err = NumericArrayResize(uB, 1L, (UHandle*)&testcluster->test,
len))
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goto out;
MoveBlock(&tempCStr, LStrBuf(*testcluster->test), len); // the string
was able to passed to LabVIEE, but it was unreadable.
out:
Did I do anything wrong? Any thougths or suggestions would be very
appreciated!

Thank you so much for your response, Greg. However, I still have problem after making
corresponding modification for LStrPrintf approach:
int32 len;
char tempCStr[255] = "";
strcpy(temCStr, testinstance.test);
len = StrLen(tempCStr);
LStrPrintf(testcluster->test, (CStr) "%s", tempCStr);
LStrLen(*testcluster->test) = len;
LabVIEW crashes. Any ideas?
Greg McKaskle wrote:
> The LStrPrintf example works correctly with the "test" string literal because
> tempCStr= "test"; assigns the pointer tempCStr to point to the buffer containing
> "text". Calling strcpy to move any string to tempStr will cause
> problems because it is copying the string to an uninitialized pointer,
> not to a string buffer. There isn't anything wrong with the LStrPrintf
> call, the damage is already done.
>
> In the moveblock case, the code:
> tempCStr = (char *)&testinstance.test; //since strcpy didn't work, I
> used this way to try to copy the const char* to char*.
>
> doesn't copy the buffer, it just changes a pointer, tempCStr to point to
> the testinstance string buffer. This is not completely necessary, but
> does no harm and is very different from a call to strcpy.
>
> I believe the reason that LV cannot see the returned string is that the
> string size hasn't been set.
> Again, I'm not looking at any documentation, but I believe that you may
> want to look at LStrLen(*testcluster->test). I think it will be size of
> the string passed into the CIN, and it should be set to len before returning.
>
> Greg McKaskle
>
> > struct teststrct{
> > ...
> > const char* test;
> > ...
> > };
> >
> > struct teststrct testinstance;
> >
> > typedef struct {
> > ...
> > LStrHandle test
> > ...
> > } TD1;
> >
> > CIN MgErr CINRun(TD1 *testcluster, LVBoolean *Error) {
> >
> > char *tempCStr = NULL;
> >
> > ...
> >
> > strcpy(tempCStr, testinstance.test); // this would cause LabVIEW crash!
> > LStrPrintf(testcluster->test, (CStr) "%s", tempCStr);
> > // but if I assigned tempCStr as tempCStr = "test", the string value
> > "test" could be passed to LabVIEW without any problems.
> >
> > ...
> > }
> >
> > 2. MoveBlock
> >
> > #include "extcode.h"
> > #include "hosttype.h"
> > #include "windows.h"
> >
> > struct teststrct{
> > ...
> > const char* test;
> > ...
> > };
> >
> > struct teststrct testinstance;
> >
> > typedef struct {
> > ...
> > LStrHandle test
> > ...
> > } TD1;
> >
> > CIN MgErr CINRun(TD1 *testcluster, LVBoolean *Error) {
> >
> > char *tempCStr = NULL;
> > int32 len;
> > ...
> >
> > tempCStr = (char *)&testinstance.test; //since strcpy didn't work, I
> > used this way to try to copy the const char* to char*.
> > len = StrLen(tempCStr);
> >
> > if (err = NumericArrayResize(uB, 1L, (UHandle*)&testcluster->test,
> > len))
> > {
> > *Error = LVFALSE;
> > goto out;
> > }
> >
> > MoveBlock(&tempCStr, LStrBuf(*testcluster->test), len); // the string
> > was able to passed to LabVIEE, but it was unreadable.
> > ...
> >
> > out:
> > ...
> >
> > }
> >
> > Did I do anything wrong? Any thougths or suggestions would be very
> > appreciated!

Is there an easy way to convert from a String with a comma, ie. 1,000.00 to

Is there an easy way to convert from a String with a comma, ie. 1,000.00 to a float or a double?
thanks,
dosteov

Like DrClap said: DecimalFormat. However, make sure you understand the Locale things, as explained at http://java.sun.com/j2se/1.3/docs/api/java/text/DecimalFormat.html (which refers to NumberFormat as well) and use them explicitly. Like
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public static void main(String args[])
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When performing calculations, also see http://developer.java.sun.com/developer/JDCTechTips/2001/tt0807.html
a.

How can I Convert a numeric string to a formatted string?

I have a string value returned from a background tool that will range from 0 to possibly terabytes as a full number. I want to format that number to use commas and to reduce the character count using an appropriate size modifier (KiB, MiB, GiB, etc). I've tried converting the string number to a Double value using Double.parseDouble() and then performing the math based on the size of the value with this code:
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I've also tried using
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Anyone have a recipe for this?
Thanks,
Tim

TOLIS Tim wrote:
Thanks, but the reason for using Double is that the division math can leave me with values like 2.341 GiB. I don't want to drop the values (or round) on the right side of the decimal point.
Then you may look for DigDecimal which avoids digitization errors.
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bye
TPD

Converting Double to String without exponent

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