Trying To Understand Pattern in Variable of Type Double

Does any one know what could have caused the following strange pattern? Focus on finding the sequence 1211
-2.9164014687882487
3.1835985312117456
-2.51640146878826
-20.216401468788252
2.5835985312117393
-11.716401468788257
3.483598531211757
1.8835985312117554
11.383598531211748
-1.216401468788253
I would like to understand the reason for the pattern. Here's how each number comes about:
1. From a txt file pull two digit precision numbers i.e., 2.01, 3.65, 4.94 etc.
2. Subtract two of these and divide by another number of the same precision.
3. Assign the result to a double variable called result.
4. printout the result
I suspect that I am just catching some junk after the two digits and somehow that junk is mostly consistent -probably pointing at the same memory location or something like that. Still I would like to understand this a little better.
Also, note that sequence 1211 consistently shows up in positive numbers while the sequence 8788 shows up consistently in negative numbers.
Any feedback appreciated.

It's not leftover junk in memory locations or anything like that. Java isn't that stupid. It's more likely to be something to do with the number you are dividing by.
For example if you always divided by 3 (a simple example), your result would eventually go "...33333" or "...66666". This isn't a fluke or a bug, it's just something about the number 3.

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Obviously I can go the route of messing with security settings to allow the applet to open files (eeew) but I'm hoping the actual data is available from Transferable and I'm simply not understanding how to do it.
Thanks for any tips.

And don't forget to check this link:
http://www.javaworld.com/jw-03-1999/dragndrop/jw-03-dragndrop.zip
I think with few modifications you can get what you want.

Trying to understand a WS-I validation failure

I'm trying to understand the following WS-I validation failure message. I'm sure I'm making a basic mistake but I can't find an example of the use case where an xsd is imported. Can someone point out my error?
Thanks,
Bret
Validation failure:
Result failed:
Failure Message: A QName reference that is referring to a schema component, uses a namespace not defined in the targetNamespace attribute on the xs:schema element, or in the namespace attribute on an xs:import element within the xs:schema element.Failure Detail Message:
{http://Messages.xsd}SigReplyMessage,
{http://schemas.xmlsoap.org/wsdl/}string,
{http://Messages.xsd}SigRequestMessage
Element Location: lineNumber=8
My wsdl looks like this:
<definitions targetNamespace="urn:S3SignatureGenerator"
xmlns="http://schemas.xmlsoap.org/wsdl/"
xmlns:tns="urn:S3SignatureGenerator"
xmlns:mime="http://schemas.xmlsoap.org/wsdl/mime/"
xmlns:soap12="http://schemas.xmlsoap.org/wsdl/soap12/"
xmlns:xsd="http://www.w3.org/2001/XMLSchema"
xmlns:soap="http://schemas.xmlsoap.org/wsdl/soap/"
xmlns:messages="http://Messages.xsd">
<types>
<xsd:schema>
<xsd:import id="Messages.xsd"
schemaLocation="../../XSDDocument/Messages.xsd"
namespace="http://Messages.xsd"/>
</xsd:schema>
</types>
<message name="ReturnSignature">
<part name="SigAndExp" type="messages:SigReplyMessage"/>
</message>
<message name="RequestSignature">
<part name="Keys" type="messages:SigRequestMessage"/>
</message>
<portType name="SigGenerator">
<operation name="GetSignature">
<input message="tns:RequestSignature"/>
<output message="tns:ReturnSignature"/>
<fault name="sigFault" message="tns:SigFault"/>
</operation>
</portType>
<message name="SigFault">
<part name="faultMessage" element="string"/>
</message>
<binding name="SigGenSoapHttp" type="tns:SigGenerator">
<soap:binding style="document"
transport="http://schemas.xmlsoap.org/soap/http"/>
<operation name="GetSignature">
<soap:operation soapAction="urn:S3SignatureGenerator/GetSignature"/>
<input>
<soap:body use="literal" parts="SecretKey PublicKey"/>
</input>
<output>
<soap:body use="literal" parts="Signature"/>
</output>
<fault name="sigFault">
<soap:body use="literal" parts="SecretKey PublicKey"/>
</fault>
</operation>
</binding>
<service name="SignatureGenerationService">
<port name="SigGenSoapHttpPort" binding="tns:SigGenSoapHttp">
<soap:address location="tbd"/>
</port>
</service>
</definitions>
Messages.xsd looks like this:
<?xml version="1.0" encoding="windows-1252" ?>
<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema"
xmlns="http://www.bret.org/S3test/Messages"
targetNamespace="http://www.bret.org/S3test/Messages"
elementFormDefault="qualified">
<xsd:complexType name="sigRequestMessage">
<xsd:sequence>
<xsd:element name="publicKey" type="xsd:string"/>
<xsd:element name="privateKey" type="xsd:string"/>
</xsd:sequence>
</xsd:complexType>
<xsd:complexType name="sigReplyMessage">
<xsd:sequence>
<xsd:element name="Signature" type="xsd:string"/>
<xsd:element name="expiration" type="xsd:dateTime"/>
</xsd:sequence>
</xsd:complexType>
</xsd:schema>

Hi Bret,
Sorry it's taken me a bit of time to respond, but please find below a run-down of the WS-I related problems I spotted in your WSDL document. The first few are related to the import error you saw, and there's a few others that I'll also discuss. Apologies in advance if you've already spotted and corrected those.
I'll use line numbering based on the formatting of the WSDL and XSD that you supplied.
BP2417 (the one you asked about)
The line number in the error is a red herring. There are two problems here:
- WSDL document, line 29: You're using the XSD type string unqualified - it should be xsd:string.
- WSDL document, lines 8 and 13; schema, lines 3 and 4: The namespaces you're using don't match. Either change the namespaces in the schema to be http://Messages.xsd, or change the namespaces in the WSDL to http://www.bret.org/S3test/Messages.
BP2202
You should declare UTF-8 or UTF-16 encoding when creating WSDL or schema documents. The easiest way to do this is to go to Tools|Preferences, and set JDeveloper's default encoding to either UTF-8 or UTF-16.
BP2032
WSDL document, line 26 and 43: The name attribute of the fault should read SigFault, not sigFault, as WSDL is case-sensitive.
WSDL document, line 44: You should use a soap:fault element, not a soap:body element, to bind a fault, thus:
<soap:fault name="SigFault" use="literal"/>
BP2012
WSDL document, lines 17 and 20: Message parts in a document-bound service like this one should reference XSD elements and not complexTypes. What you need to do is define two elements in your messages schema whose types are SigReplyMessage and SigRequestMessage respectively, and then reference those elements from the WSDL.
WSDL document, line 38: The value of the parts attribute should be Keys to match the name of the part child of the RequestSignature.
WSDL document, line 41: The value of the parts attribute should be SigAndExp to match the name of the part child of the ReturnSignature.
WSDL document, line 44: The value of the parts attribute should be faultMessage to match the name of the part child of the SigFault.
BP2115
WSDL document, lines 17 and 20: The names of the elements should be sigReplyMessage and sigRequestMessage and not SigReplyMessage and SigRequestMessage, again because WSDL is case-sensitive.
WSDL document, line 30: The element attribute of the part references xsd:string, which is not an element but a complexType. You'll need to add an element declaration to your schema, which is of type xsd:string.
I've included corrected versions of your WSDL and schema below, I hope this helps. I also note you've posted a few other messages related to WS-I and WSDL, I hope I've managed to cover those in this message too.
Regards,
Alan.
WSDL:
<?xml version="1.0" encoding="UTF-8" ?>
<definitions targetNamespace="urn:S3SignatureGenerator"
xmlns="http://schemas.xmlsoap.org/wsdl/"
xmlns:tns="urn:S3SignatureGenerator"
xmlns:mime="http://schemas.xmlsoap.org/wsdl/mime/"
xmlns:soap12="http://schemas.xmlsoap.org/wsdl/soap12/"
xmlns:xsd="http://www.w3.org/2001/XMLSchema"
xmlns:soap="http://schemas.xmlsoap.org/wsdl/soap/"
xmlns:messages="http://Messages.xsd">
<types>
<xsd:schema>
<xsd:import id="Messages.xsd"
schemaLocation="Messages.xsd"
namespace="http://Messages.xsd"/>
</xsd:schema>
</types>
<message name="ReturnSignature">
<part name="SigAndExp" element="messages:sigReplyMessage"/>
</message>
<message name="RequestSignature">
<part name="Keys" element="messages:sigRequestMessage"/>
</message>
<message name="SigFault">
<part name="faultMessage" element="messages:faultMessage"/>
</message>
<portType name="SigGenerator">
<operation name="GetSignature">
<input message="tns:RequestSignature"/>
<output message="tns:ReturnSignature"/>
<fault name="SigFault" message="tns:SigFault"/>
</operation>
</portType>
<binding name="SigGenSoapHttp" type="tns:SigGenerator">
<soap:binding style="document"
transport="http://schemas.xmlsoap.org/soap/http"/>
<operation name="GetSignature">
<soap:operation soapAction="urn:S3SignatureGenerator/GetSignature"/>
<input>
<soap:body use="literal" parts="Keys"/>
</input>
<output>
<soap:body use="literal" parts="SigAndExp"/>
</output>
<fault name="SigFault">
<soap:fault name="SigFault" use="literal"/>
</fault>
</operation>
</binding>
<service name="SignatureGenerationService">
<port name="SigGenSoapHttpPort" binding="tns:SigGenSoapHttp">
<soap:address location="tbd"/>
</port>
</service>
</definitions>
Schema:
<?xml version="1.0" encoding="UTF-8" ?>
<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema"
xmlns="http://Messages.xsd"
targetNamespace="http://Messages.xsd"
elementFormDefault="qualified">
<xsd:element name="sigRequestMessage">
<xsd:complexType>
<xsd:sequence>
<xsd:element name="publicKey" type="xsd:string"/>
<xsd:element name="privateKey" type="xsd:string"/>
</xsd:sequence>
</xsd:complexType>
</xsd:element>
<xsd:element name="sigReplyMessage">
<xsd:complexType>
<xsd:sequence>
<xsd:element name="Signature" type="xsd:string"/>
<xsd:element name="expiration" type="xsd:dateTime"/>
</xsd:sequence>
</xsd:complexType>
</xsd:element>
<xsd:element name="faultMessage" type="xsd:string"/>
</xsd:schema>

Trying to understand java

Trying to understand corba
please tell me what the inout in this coode means:
boolean book_search(inout b_item book, inout client olvas) raises (BookNoAvail)
The type of parameter passing in Java is that it makes a copy of the parameter and themn in method somthing happens??
So which one is it out of the two: pass by reference and pass by value?

please tell me what the inout in this coode means:A parameter that supplies input as well as accepts output is an INOUT parameter.

Trying to understand methods - calling methods within own class - help

I'm trying to write a simple program to search for letters in a string. I'm having a ton op problems; java seems so complicated with a lot of rules.
The main problem I'm having (for now) is calling a method within the same class as main.
import java.io.*;
class LookForLetters{
    public static void main(String[] args)
     int i = 0;
     int j = 0;
     int l = 0;
     int m = 0;
     String question1 = "Enter the line to be searched";
     String question2 = "Enter the line to be searched";
     returnResponse stringtosearch = new returnResponse(question1); // here's where my problem is
        char[] chartosearch = stringtosearch.toCharArray();
     returnResponse letterstofind = new returnResponse(question2);
        char[] chartofind = letterstofind.toCharArray();
     int findlength = chartosearch.length();
     int searchlength = chartofind.length();
     int[] k = new int[searchlength];
     for(i = 0; i < findlength; i++)
         for(j = 0; j < searchlength; j++)
          if(chartosearch[i] == chartofind[j])
              k[l] = i;
              l++;
              System.out.print("T");
         System.out.print(i + " " + l);
            if(l == 0)
                System.out.print(chartofind[i] + " is the not in the sentence.");
                System.out.println();
            else
                System.out.print(chartofind[i] + " is the ");
             for(m = 0; m < l; m++)
                 System.out.print(k[l] + " ");
                System.out.print("letter of your sentence");
                System.out.println();
                l = 0;
    public String returnResponse(String question){
     String response = " ";
     System.out.print(question);
     try
         InputStreamReader isr = new InputStreamReader(System.in);
            BufferedReaderbr = new BufferedReader(isr);
         response = br.readLine();
     catch(IOException e)
         System.out.print("error");
     return response;
}The compiler says that it can't find the returnResponse method. when I try to instantiate the whole class, it says the package is not included. Please help.

JoachimSauer wrote:
DaneWKim wrote:
thank you very much for your response. I'm sure it's obvious that I'm really confused. I'm used to C and assembly programming, so the OO concepts are really foggy.That particular line doesn't even deal with any OO concept. But the fact that you already know C helps me give a (hopefully) more useful answer:
What is the return type of the method you're trying to call?
What is the type of the variable you want to assign the return value to?
Are those compatible? Or even more general: do they both exist?I changed it to:
        String stringtosearch = returnResponse(question1);
        char[] chartosearch = stringtosearch.toCharArray();
     String letterstofind = returnResponse(question2);
        char[] chartofind = letterstofind.toCharArray();I guess I'm getting confused with medthods, class and types. There's a whole host of new vocabulary and rules with OO and java that have me a bit confused. I appreciate your help.

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