Convert Double to String and Specify Precision

Hi.....
Can anyone tell me what class/method I would use if I want to convert a double to a string and need the ability to specify the precision?
Thanks,
Christine

DecimalFormat

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Converting double to String

I am looking for a way to convert double to String.
I think that I have to use wrapper like Double class and use toString(double d), but I am not sure how to do it.
Since toString() is static method, I do not have to have an instance of the Double class, so I was wondering what's the correct way to do it.
I need something like this:
String MyString = new String (String1.concat ( My_doubleNumber.Double.toString() ) );
Any Suggestions?
Thanks!!!

WOW thanks a lot. These are definately better than what I thought of doing originally.
In case I need to use the wrapper class somewhere else, I am just wondering what would be a proper use of Double and String?

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

Converting double to strings

I'm having a problem in getting my double to convert to a string, here's my code so far.
     public void calculatePayments()
          double paymentAmount;
          double monthlyInterestRate = (Double.parseDouble(interestBox.getText())/12)/100;
          double amountOfLoan = Double.parseDouble(balanceBox.getText());
          double numberOfPayments = Double.parseDouble(yearsBox.getText()) * 12;
          paymentAmount = (amountOfLoan * monthlyInterestRate) / (1 - Math.pow(1/(1 + monthlyInterestRate),numberOfPayments));
          Double.toString(paymentAmount);
          tableBox.append(paymentAmount);
And here's the error message I get:
ProgramInterface.java:134: append(java.lang.String) in javax.swing.JTextArea cannot be applied to (double)
          tableBox.append(paymentAmount);
As always, help is appreciated.

This line returns a String but has no affect on paymentAmount.
Double.toString(paymentAmount);To covert the double to String you can save the return in a variable
String s = Double.toString(paymentAmount);
tableBox.append(s);or combine them
tableBox.append(Double.toString(paymentAmount));

Converting doubles to strings

I'm sorry if this has already been posted, but i searched the database for a while and i couldn't find anything that helped. I was just wondering what the code was to convert a double into a string, so it can be displayed on a label or button, etc. Again, i am sorry if this was already posted and i missed it.

double d=100.0;
String doubleStr=Double.toString(d);

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.
Use this page to set front panel options.
This page includes the following components:
Open the control editor with double click—Allows you to
double-click a control to display the Control
Editor window. Use the Control Editor window to customize
the appearance of a front panel object. This checkbox is unchecked by default.
Use localized decimal point—Uses the decimal separator for
the operating system instead of the period. This checkbox is checked by default.
Remove the checkmark from this checkbox if you want LabVIEW to use periods in
all cases for the decimal point.

Convert XString to String and String to IWDResource

Hi everybody,
we want to open a PDF-Document from Backend in Web Dynpro. For the communication we use a Web Service.
In Backend we have a PDF-Document with data type XSTRING.
1. In Backend we convert the PDF-Document from XSTRING to STRING in order to send it via Web Service
2. Then we call the Web Service and pass by the STRING param
3. In Web Dynpro we convert the value from STRING to Bytes, like below:
IWDResource resource = WDResourceFactory.createResource( myPDFStringFromWS.getBytes(), "Doc1", WDWebResourceType.PDF);
4. We bind the Resource to a FileDownload-UI.
Unfortunately we get the error message: Document is not a valid PDF
How can we convert a String to IWDResource? Could the problem be in our first step, where we convert the XSTRING into STRING?
regards,
Sid

Hello Sid,
IWDResource resource = WDResourceFactory.createCachedResource(new ByteArrayInputStream(wdContext.currentFileElement().getString()),"PDF",WDWebResourceType.PDF,true);
IWDWindow window = wdComponentAPI.getWindowManager().createNonModalExternalWindow(resource.toString(),"PDF");
window.show();
Can you try this and let us know.
Regards
Nizamudeen SM

Newbie Converting double to string

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++ ) {
         output += words[ i ].toString();
                  output +="\nListed :" + Double.toString(words[ i ].listings()) + "\n";
     return output; the listings method is type double. I think I can use toString to convert a double to a string but am not sure how to go about doing it.
Any help is very appreciated.
Thanks.

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++ ) {
output += words[ i ].toString();
output +="\nListed :" + Double.toString(words[ i
].listings()) + "\n";
return output;the listings method is type double. I think I can use
toString to convert a double to a string but am not
sure how to go about doing it.
Any help is very appreciated.
Thanks.Wrong:
Double.toString(words[ i ].listings())
Right:
words[ i ].listings().toString()

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

Convert Double To String

Hello,
I have the following method:
private String doubleToString(double value, int kommas)
     int stringLength;
     String mString ="";
     String mSubstringSuf ="";
     Double dValue = new Double(value);
     mString = new String(dValue.toString());
     stringLength = mString.length();
     mSubstringSuf = mString.substring(2, stringLength + 2 - kommas);
     return "0." + mSubstringSuf;
Now I call this Method with
value = 4.98
kommas = 2
I receive back the value 4.88????
What is wrong?
Thank you
Werner

That code cannot possibly return "4.88". It always returns something that begins with "0." So perhaps you are debugging the wrong code.

Converting Units in LabView and specifying sampling rate with Universal Library functions

Hi,
I am having trouble converting units in LabView 7.0 and having it write to a file / output on a chart in Nm instead of in volts. I can't seem to find any straightforward instructions, eventhough it seems like a simple task.
Another task that would seem rather simple is changing the sampling rate with the XAIn program from the Universal Library for LabView (this is version 5.40).
If anyone could help me out, I would greatly appreciate it - I have tried other sources without much luck!
Thanks
Jenna

Are you really needing to change units or do you need to scale the voltages read from your sensors? If it's scaling, it would be trivial to set this up in mAX or with the DAQ Assistant if you were using an NI board. Since you are not, then you could use the Scaling and Mapping Express VI. The y axis of a chart is just a label. You can use the text tool to change it to anything you want.
I have no idea how to change sample rate for your board. Have you asked the vendor?

Convert Inputstructure into String and store into DB2

Hello All
My requirement is I want to convert total input structure into string then stored into database single field as clob. Can anyone suggest me how will i retive input structor, is there any user defined function will i write or is there any inbuilt functionality in SAP PI. Plese suggest me
Thanks&Regards,
VenkatK

Hi Swarup / Shamly
My input structure is nearly 60 fields. Sample Structure
<?xml version="1.0" encoding="utf-8"?>
<SOAP-ENV:Envelope xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/" SOAP-ENV:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
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         <create xmlns="urn:MySoapServices">
            <PurchaseOrder>
               <BuyerDetails>
                    <Organization>University of Washington</Organization>
                    <Authorized_Person>
                         <FisrtName>Cease</FisrtName>
                         <LastName>Wayne</LastName>
                    </Authorized_Person>
                    <Street>Savery Hall</Street>
                    <City>Seattle</City>
                    <State>Wa</State>
                    <Zip>98195</Zip>
                    <Contact_Numbers>
                              <Phone>888-846-6638</Phone>
                              <Fax>212-629-1158</Fax>
                    </Contact_Numbers>
                    <Email>hidekiu.washington.edu</Email>
               </BuyerDetails>
               <SupplierDetails>
                    <Organization>Thomas Industrial Network</Organization>
                    <Authorized_Person>
                         <FisrtName>Cease</FisrtName>
                         <LastName>Wayne</LastName>
                    </Authorized_Person>
                    <Street>5 Penn Plaza, 10th Floor</Street>
                    <City>New York</City>
                    <State>NY</State>
                    <Zip> 10001</Zip>
                    <Contact_Numbers>
                              <Phone>888-846-6638</Phone>
                              <Fax>212-629-1158</Fax>
                    </Contact_Numbers>
               </SupplierDetails>
               <PurchaseOrderInformation>
                    <Order_Number>4556</Order_Number>
                    <Order_Delivery_Date>10-10-2006</Order_Delivery_Date>
                    <PO_Type>Finished</PO_Type>
                    <status>PO sent</status>
               </PurchaseOrderInformation>
               <Address>
                    <Shipping_Address>
                         <Organisation>University of Washington</Organisation>
                    <Authorized_Person>
                         <FisrtName>Cease</FisrtName>
                         <LastName>Wayne</LastName>
                    </Authorized_Person>
                         <Street>Savery Hall</Street>
                         <City>Seattle</City>
                         <State>Wa</State>
                         <Zip>98195</Zip>
                         <Email>hidekiu.washington.edu</Email>
                    </Shipping_Address>
                    <Billing_Address>
                         <Organisation>University of Washington</Organisation>
                    <Authorized_Person>
                         <FisrtName>Cease</FisrtName>
                         <LastName>Wayne</LastName>
                    </Authorized_Person>
                         <Street>Savery Hall</Street>
                         <City>Seattle</City>
                         <State>Wa</State>
                         <Zip>98195</Zip>
                         <Email>hideki</Email>
                    </Billing_Address>
               </Address>
               <Payment_Terms>
                    <Purchase_Order>
                         <PO_Number>456</PO_Number>
                         <Payment_Type>Bank</Payment_Type>
                         <Payment_Type_PO>
                              <Bank>
                                   <BankName>Citibank</BankName>
                                   <AccountNumber>654987456</AccountNumber>
                                   <BranchCode>564</BranchCode>
                              </Bank>
                              <Credit_Card>
                                   <Payment_Type_CC>VISA</Payment_Type_CC>
                                   <CC_Number>1234 4567 7890 0123</CC_Number>
                                   <CC_Expire_Date>10-12-2012</CC_Expire_Date>
                              </Credit_Card>
                         </Payment_Type_PO>
                    </Purchase_Order>
                    <Currency>USD</Currency>
               </Payment_Terms>
               <Purchase_Items>
                    <Item>
                         <Part_Name>6 foot wide 5 foot high cabinet</Part_Name>
                         <Quantity>9</Quantity>
                         <Description>Cabinets of systems</Description>
                    </Item>
                    <Item>
                         <Part_Name>6 foot wide shelves</Part_Name>
                         <Quantity>6</Quantity>
                         <Description>Shelves for books</Description>
                       </Item>
               </Purchase_Items>
          </PurchaseOrder>
         </create>
      </SOAP-ENV:Body>
   </SOAP-ENV:Envelope>
           I need to store whole XML structure (Including XML version) into Database single field as a clob. not field values. Please help me out from this issue.

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
experience with this error. What does it mean?
Thanx,
RipIt means you tried to call a method or access a field on a null reference?
Which line does it occur in? (The error message will tell you, and will alos tell you where the method was called from.)
For instance, if the message comes from the outputLabel.setText line, then outputLabel must be null, since that's the only reference you're attempting to dereference there.
If it comes from a different line, look for everything other than class names preceding a dot, or for references to array elements (e.g. arr[0] will give NPE if arr is null).

I want to convert two image files into strings and than to compare them. This is easy, but how to mention where the difference exist?

I have two image file in bmp file format. How to convert them into string and to check if they are differnt or same. If different how to mention or find that where the difference exists. This idea have to be extented with video application as well.

Hi,
if you have vision, you could use the functin IMAQ Image to Array to have a 2D array of the pixel values.
You can then compare pixel by pixel; if your images come from a camera, I would recommend to set a treshold of acceptance.
This is a time consuming solution anyway.
Alternative methods:
1) Make a subtraction of the two images, the resulting image will be the difference of them
2 ) Use IMAQ LogDiff function (operators palette)
3) Calculate the histogram of both image and compare the histogram reports
Good luck,
Alberto

Converting from xsd:string into soapenc:string

Hi.
I was successfull in invoking an axis web service with complex type definitions.
However, when building and deploying the process flow, I get a warning message as follows:
" [bpelc] [Warning]: Trying to assign incompatible types
[bpelc] [Description]: in line 53 of "C:\eclipse\workspace\ComplexTypeWSFlow\TimeSheetProcess.bpel", <from> value type "{http://www.w3.org/2001/XMLSchema}string" is not compatible with <to> value type "{http://schemas.xmlsoap.org/soap/encoding/}string".
[bpelc] [Potential fix]: Please make sure that the return value of from-spec query is compatible with the to-spec query.
[bpelc]
[bpelc] [Warning]: Trying to assign incompatible types
[bpelc] [Description]: in line 58 of "C:\eclipse\workspace\ComplexTypeWSFlow\TimeSheetProcess.bpel", <from> value type "{http://www.w3.org/2001/XMLSchema}string" is not compatible with <to> value type "{http://schemas.xmlsoap.org/soap/encoding/}string".
[bpelc] [Potential fix]: Please make sure that the return value of from-spec query is compatible with the to-spec query."
My question is:
How can I convert between xsd:string and soapenc:string types when using the "assign" activity so I don't keep getting this warning message?
Regards

Hi Paulo,
This warning has been fixed in recent builds. eventhough soapenc:string is different type, it extends xs:string and its simple content. the compiler shouldn't display warnings for this case.

Convert Double to String and Specify Precision

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