How to return a String
i have a program that needs to return a String (or a variable that holds test). String is not a return type variable so how do i return a string-like variable (or object). I tried returning a Vector but it doesn'w work the same problem ocurs. Vector is not a reurn type variable (technicly it is not really a variable ata all). So how do is do it.
Thank you for the help
Also is there a book i can buy that can help me study for the Java core technology exam (CX-310-055). Is there any material i need to know that i could study from a book that i can buy or some other resource that is now so expensive as taking a java certification class?
Thank you again
-- well, you can try this book: Java 2 Programmer Exam Cram 2[b\
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How to return a String in main() [IBM iSeries]
Hei,
gotta question:
How do I return a String on the exit of a Java-Application?
public static String main(String[] args) {
return aString;
}is "illegal" but I need to do something like that.
What I want to do is to start a java app in a cl on the iSeries (no problem) and fill a variable with the result (the problem)
Big Thx,
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Hi,
Is there any way so to return any string through odi os command.
I want to return that error back through odi operator.
ThanksI dont think so. You can modify your script file so that in case of any error it will write a flag (your string values) to another temp file (temp.txt)
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http://dwteam.in -
How to return a string in chronological order?
I have a string called schedule, for example:
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After breaking it up using StringTokenizer, how do I return it into chronological order?
Return the schedule for each day of the week as a String with the appointments listed in chronological order, starting with those for the first day of the week and ending with those for the last day of the week.
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Monday:
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Wednesday:
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Hi guys,
Can someone tell me how to return the string from the SimpleDateFormat?
I've created the method to do this, but i don't know the exact code to use. Here's my code so far...
public String convert (Calendar gc)
String s = convert(gc);
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}BTW, i've already wrote the code for the SimpleDateFormat (so if you want me post that, i will).DrLaszloJamf wrote:
LevelSix wrote:
DrLaszloJamf wrote:
No.Can you tell me what it is, because i've went through the API and i don't know.
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You will need to have a parameter passed by reference to return the
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2 Threads issues. How to return data from a thread located in other class
I have 2 questions.
This is the context. From main I start one thread that does a little job then starts another thread and waits for it to end to continue.
1) The last started thread needs to return a string to the Thread started from main. How can I accomplish that, because I read that I cannot use
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How to convert a string value to date
Dear All,
I am new to powershell script, i was trying to store a Ad user password set date to a variable add, add a number of days to get the expire date.
but when i try to convert the variable to date value, I am getting the error as below.
Please help me......
PS C:\script> $passwordSetDate = (get-aduser user1 -properties * | select PasswordLastSet)
PS C:\script> $passwordSetDate
PasswordLastSet
7/15/2014 8:17:24 PM
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Cannot find an overload for "ParseExact" and the argument count: "3".
At line:1 char:1
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+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ CategoryInfo : NotSpecified: (:) [], MethodException
+ FullyQualifiedErrorId : MethodCountCouldNotFindBest
PS C:\script> $a = [datetime]::ParseExact($passwordSetDate,"MM/dd/yyyy HH:MM:SS", $null)Dear All,
I am new to powershell script, i was trying to store a Ad user password set date to a variable add, add a number of days to get the expire date.
but when i try to convert the variable to date value, I am getting the error as below.
Please help me......
PS C:\script> $passwordSetDate = (get-aduser user1 -properties * | select PasswordLastSet)
PS C:\script> $passwordSetDate
PasswordLastSet
7/15/2014 8:17:24 PM
PS C:\script> $a = [datetime]::ParseExact($passwordSetDate,"MM/dd/yyyy HH:MM:SS", $null)
Cannot find an overload for "ParseExact" and the argument count: "3".
At line:1 char:1
+ $a = [datetime]::ParseExact($passwordSetDate,"MM/dd/yyyy HH:MM:SS", $null)
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ CategoryInfo : NotSpecified: (:) [], MethodException
+ FullyQualifiedErrorId : MethodCountCouldNotFindBest
PS C:\script> $a = [datetime]::ParseExact($passwordSetDate,"MM/dd/yyyy HH:MM:SS", $null)
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If you are really trying ot convert strings to dates then you can start with this:
[datetime]'01/21/1965 13:33:23'
Most date strings aer autodetected by the class.
¯\_(ツ)_/¯ -
How to return more than one object from SwingWorker
I am using a SwingWorker to call 3 different methods of another class (data fetch class). Each of these 3 methods returns a String array. I am able to get the first array outside the thread code using the get() method of the SwingWorker class,
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Here is an example (observe test method):
import java.util.*;
public class ArrayTest{
public static void main(String[] args){
String[][] result=(String[][])new ArrayTest().test();
System.out.println("result1: "+Arrays.toString(result[0]));
System.out.println("result2: "+Arrays.toString(result[1]));
System.out.println("result3: "+Arrays.toString(result[2]));
public Object test(){
String[] str1={"A","B","C"};
String[] str2={"M","N","O"};
String[] str3={"X","Y","Z"};
String[][] out=new String[3][];
out[0]=str1;
out[1]=str2;
out[2]=str3;
return out;
}Thanks,
Mrityunjoy -
How to return xmlType from Webservice generated with JDev and PL/SQL
Hi,
I have generated an PL/SQL package that's returning a value as xmlType.
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<?xml version="1.0" encoding="UTF-8" ?>
<SOAP-ENV:Envelope
xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
<SOAP-ENV:Body>
<ns1:testXmltypeResponse
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SOAP-ENV:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/">
<return xsi:type="xsd:string">
<ROWSET>
<ROW>
<TODAY>12-OCT-07</TODAY>
</ROW>
</ROWSET>
</return>
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</SOAP-ENV:Body>
</SOAP-ENV:Envelope>
The problem is that the <return> tag contains 'xsi:type="xsd:string"'. And now the webservice response is not valid XML because the return value contains XML and not a string.
The solution would be, when invoking the webservice if the xsi:type would be missing from the result tag or would contains xsd:any. I tried editing the WSDL in JDeveloper and changing the type to xsd:any. After deploying and calling the WSDL from the webbrowser it contains this type. But when invoking the method from the webbrowser it still returns xsd:string as type.
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Thanks in advance,
ThijsWhat version are you on?
Works fine for me on my 11g:
SQL> create or replace procedure testxml (clob_out out clob)
2 is
3 l_clob clob;
4 l_ctx dbms_xmlquery.ctxhandle;
5 begin
6 l_ctx := dbms_xmlquery.newcontext ('select * from dual');
7 l_clob := dbms_xmlquery.getxml (l_ctx);
8 clob_out := l_clob;
9 dbms_xmlquery.closecontext (l_ctx);
10 end testxml;
11 /
Procedure created.
SQL>
SQL> variable vout clob;
SQL>
SQL> exec testxml (:vout)
PL/SQL procedure successfully completed.
SQL>
SQL> print vout
VOUT
<?xml version = '1.0'?>
<ROWSET>
<ROW num="1">
<DUMMY>X</DUMMY>
</ROW>
</ROWSET>But definitely you can optimize your proc a bit: Try
create or replace procedure testxml (clob_out in out nocopy clob)
is
l_ctx dbms_xmlquery.ctxhandle;
begin
l_ctx := dbms_xmlquery.newcontext ('select * from dual');
clob_out := dbms_xmlquery.getxml (l_ctx);
dbms_xmlquery.closecontext (l_ctx);
end testxml;
/ -
How to convert a String("yyyy-mm-dd") to the same but in Date format ?
Hi,
can anyone plz tell me how to convert a String to a date format.I'm using MSACCESS database.I want to store this string in the database.So i need to convert it to a date format since the table is designed such a way with date/time type for date field.I used SimpleDateFormat ,but i can't able to convert.The code is given below:
coding:
public String dateconvertion(String strDate)
try
SimpleDateFormat sdfSource = new SimpleDateFormat("yyyy-MM-dd");
Date date = sdfSource.parse(strDate);
SimpleDateFormat sdfDestination = new SimpleDateFormat("yyyy-MM-dd ");
strDate = sdfDestination.format(date);
catch(ParseException pe)
System.out.println("Parse Exception : " + pe);
return(strDate);
}i used prepared statement even now i am getting error like this.....
i have included the prepared statement package also...
my coding:
ResultSet rsdatetemp = null;
PreparedStatement ps = null;
String query ="select distinct itemcode from sales where bill date between ? and ?";
ps = precon.prepareStatement(query);
ps.setDate(1,d1);//d1 and d2 are in date format
ps.setDate(2,d2);
rsdatetemp = ps.executeQuery();
error :
symbol : method setDate(int,java.util.Date)
location: interface java.sql.PreparedStatement
ps.setDate(1,d1);
symbol : method setDate(int,java.util.Date)
location: interface java.sql.PreparedStatement
ps.setDate(2,d2); -
How to convert xml String to xml file?
Hi,
I got a method that do the following:
public static String convertXmlToString(String xmlFileName) throws Exception
File file = new File(xmlFileName);
FileInputStream insr = new FileInputStream(file);
byte[] fileBuffer = new byte[(int)file.length()];
insr.read(fileBuffer);
insr.close();
return new String(fileBuffer);
}The return String is the contents of an existing xml file and one example is shown below:
<object type="server.WOXReference" id="0"><field name="actualPathObj"><object type="java.lang.String" id="1">C:\restClient\actualXMLObjects\812856084.xml</object></field><field name="object"><object type="server.WOXConstructor" id="2"><field name="className"><object type="java.lang.String" id="3">rec.SimpleRecognizer</object></field><field name="types"><array type="java.lang.String" length="3" id="4"><object type="java.lang.String" id="5">double[].class</object><object type="java.lang.String" id="6">double.class</object><object idref="6" /></array></field><field name="args"><array type="java.lang.Object" length="3" id="7"><array type="double" length="5" id="8">22.33 33.22 33.33 22.0 11.0</array><object type="java.lang.Double" id="9">2.2</object><object type="java.lang.Double" id="10">3.3</object></array></field><field name="retType"><object type="java.lang.String" id="11">act</object></field></object></field></object>
and I want to change the above string to xml file like below:
<object type="server.WOXReference" id="0"><field name="actualPathObj"><object type="java.lang.String" id="1">C:\restClient\actualXMLObjects\812856084.xml</object></field><field name="object"><object type="server.WOXConstructor" id="2"><field name="className"><object type="java.lang.String" id="3">rec.SimpleRecognizer</object></field><field name="types"><array type="java.lang.String" length="3" id="4"><object type="java.lang.String" id="5">double[].class</object><object type="java.lang.String" id="6">double.class</object><object idref="6" /></array></field><field name="args"><array type="java.lang.Object" length="3" id="7"><array type="double" length="5" id="8">22.33 33.22 33.33 22.0 11.0</array><object type="java.lang.Double" id="9">2.2</object><object type="java.lang.Double" id="10">3.3</object></array></field><field name="retType"><object type="java.lang.String" id="11">act</object></field></object></field></object>How to I change the above xml String back to xml file again? The appropriate tags must be taken care of like > must be > and < must be <.
Please advice and can give me some sample code.
Thanks.By writing some code that runs through the file and adds a new line for a new element using these methods here...
http://java.sun.com/j2se/1.4.2/docs/api/org/xml/sax/ContentHandler.html
i.e.
startDocument()
startElement(String namespaceURI, String localName, String qName, Attributes atts)
endDocument() -
Returning XML String From Servlet
Is there a simple way to disable the HTML character escaping when returning
a string from a servlet. The returned string contains well formed XML, and
I don't want the tags converted to > and < meta characters in the
HTTP reply.
The code is basically "hello world", version 7.0 SP2.
Thanks
> package xxx.servlet;
>
> import weblogic.jws.control.JwsContext;
>
>
> /**
> * @jws:protocol http-xml="true" form-get="false" form-post="false"
> */
> public class HelloWorld
> {
> /** @jws:context */
> JwsContext context;
>
> /**
> * @jws:operation
> * @jws:protocol http-xml="false" form-post="true" form-get="false" soap-s
tyle="document"
> * @jws:return-xml xml-map::
> * <HelloWorldResponse xmlns="http://www.xxx.com/">
> * {return}
> * </HelloWorldResponse>
>
> * ::
> * @jws:parameter-xml xml-map::
> * <HelloWorld xmlns="http://www.xxx.com/">
> * <ix>{ix}</ix>
> * <contents>{contents}</contents>
> * </HelloWorld>
>
> * ::
> */
> public String HelloWorld(String s)
> {
> return "<a> xyz </a>";
> }
> }
Radha,
We have a client/server package which speaks SOAP over a
streaming HTTP channel for which we are writing a WebLogic
servlet. For reasons of efficiency, we want to deserialize
only the very top-level tags of the messages as they pass
through the servlet. Yes, in theory, we should probably
deserialize and validate the entire message contents...
When we add support for other clients, we will fully
deserialize inside those servlets.
I have not looked any further into how to stop the inner
tags from being escaped yet -- it is an annoyance more than
a disaster, since the client handle meta escapes.
My current guess is to use ECMAScript mapping...
-Tony
"S.Radha" <[email protected]> wrote:
>
>"Tony Hawkins" <[email protected]> wrote:
>>
>>Is there a simple way to disable the HTML character escaping when returning
>>a string from a servlet. The returned string contains well formed XML,
>>and
>>I don't want the tags converted to > and < meta characters in the
>>HTTP reply.
>>
>>The code is basically "hello world", version 7.0 SP2.
>
>>
>>Thanks
>>
>>> package xxx.servlet;
>>>
>>> import weblogic.jws.control.JwsContext;
>>>
>>>
>>> /**
>>> * @jws:protocol http-xml="true" form-get="false" form-post="false"
>>> */
>>> public class HelloWorld
>>> {
>>> /** @jws:context */
>>> JwsContext context;
>>>
>>> /**
>>> * @jws:operation
>>> * @jws:protocol http-xml="false" form-post="true" form-get="false"
>>soap-s
>>tyle="document"
>>> * @jws:return-xml xml-map::
>>> * <HelloWorldResponse xmlns="http://www.xxx.com/">
>>> * {return}
>>> * </HelloWorldResponse>
>>>
>>> * ::
>>> * @jws:parameter-xml xml-map::
>>> * <HelloWorld xmlns="http://www.xxx.com/">
>>> * <ix>{ix}</ix>
>>> * <contents>{contents}</contents>
>>> * </HelloWorld>
>>>
>>> * ::
>>> */
>>> public String HelloWorld(String s)
>>> {
>>> return "<a> xyz </a>";
>>> }
>>> }
>>
>>
>Hi Tony,
>
> Can you let me know for what purpose you want to disable the
>HTML character
>escaping.In case if you
>
>have tried this using someway,pl. let me know.
>
>rgds
>Radha
>
>
-
How to convert a String to an Icon
Hello,
I'm trying to figure out how to convert a String (specifically one letter) to an Icon for a JTree. The program I am working on uses .png files for the icons at the moment, with each .png being a single uppercase letter. However, recent discussion has us wanting to change to something more dynamic, since we anticipate needing new letters in the near future.
My task is to modify the current codebase so that the Icons used to identify nodes in the tree are created from a Font within code, rather than reading in .png files. I have done some experimenting with creating a Label with just that String, setting the font and trying to extract the image using calls like createImage(int width, int height) and so on, but so far to no avail.
If I could figure out how to at least convert the String to an image, I could probably make it work (since I can play around with creating an ImageIcon with that image). Thanks in advance for any help.
AllanHere is some quick and dirty code:
import java.awt.*;
import javax.swing.*;
public class BasicIcon implements Icon {
private String text;
public BasicIcon(String text) {
this.text = text;
public int getIconWidth() {
return 16;
public int getIconHeight() {
return 16;
public void paintIcon(Component c, Graphics g, int x, int y) {
Color old = g.getColor();
g.setColor(c.getForeground());
g.drawString(text, x, y+13);
g.setColor(old);
public static void main(String[] args) {
JPanel cp = new JPanel();
for (char ch = 'A'; ch < 'F'; ++ch) {
cp.add(new JButton("letter " + ch, new BasicIcon(String.valueOf(ch))));
JFrame f = new JFrame("BasicIcon");
f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
f.setContentPane(cp);
f.pack();
f.setLocationRelativeTo(null);
f.setVisible(true);
}One thing that could be improved is the vertical positioning of the letter in the Icon.
The x,y values passed into paintIcon are the upper-left hand corner of the icon,
but the y value needed by drawString is the position of the String's baseline.
To do it right, use one of Font's getLineMetrics methods and play around with ascent.
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