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web page and image processing

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- 2
  - reflect fieldHi all,
    
    I want to get value of string variable in a class, and field it with
    new strings like this :
    
    EXample
    
    public class helloWold()
    {
    String myString1 = "test1";
    String myString2 = "test2";
    String myString3 = "test3";
    String myString4 = "test4";
    }
    
    public static void main(String[] args) {
    Field myField[] = helloWold().class.getFields();
    
    for (int i = 0; i < myField.length; i++)
    {
    System.out.println(myField[i].getName()); //get value
    }
    }
    
    Actually I get the value, but i didn't know how to field it. I try the
    method set but i have an error
    'an not set java.lang.String field to java.lang.String'
    
    Any ideas
    
    Thanks.
    
    Merci d avoir lu et de vos idees par avance
- 3
  - Reading from URLConnection stops at JavaScript alert callHi all,
    
    when I post form content to a server (HTTPS protocol) using a
    URLConnection and then reading the servers response using a
    BufferedReader, the reader seems to stop just before reading the code
    for a JavaScript alert. The code for reading the response looks like
    this:
    
    in = new BufferedReader(
    new InputStreamReader(connection.getInputStream()));
    stbResult = new StringBuffer(5000);
    while ((sResult = in.readLine()) != null) {
    stbResult.append(sResult);
    }
    
    When accessing the same site with a browser a dialog pops up at the
    crucial point. After clicking away the alert the rest of the HTML page
    gets loaded by the browser.
    When looking at the code of the HTML page later on, I can see that the
    response read by my java app ended just before the JavaScript code:
    
    <SCRIPT LANGUAGE="JavaScript">alert("xyz");</SCRIPT>
    
    I need to read in the whole page including the alert message. How can
    I get my java app to read in the JavaScript code within the HTML page
    (no problem occured with the JavaScript code in the header) and the
    remaining HTML code?
    
    Thanks for thinking about this one!
    
    Ralf
- 4
  - A question about Java ThreadI see a code like this:
    
    in a Thread:
    --------------------------
    public void run() {
    
    Thread currentThread = Thread.currentThread();
    
    while (thread == currentThread) {
    
    try {
    repaint();
    thread.sleep(100);
    }
    catch (InterruptedException ex) {
    }
    
    }
    }
    ---------------------------
    
    what's the "while (thread == currentThread) " codes mean?
    what is it used for?
    
    Thank you in advance.
- 5
  - new version of Open Content Software Design web bookI have an updated version of my Software Design web
    book (free!) that is primarily Java centric. This
    web book is not as complete as my "Java AI" and "Introduction
    to Common LISP" web books, but it is hopefully in a usable
    state as-is. I am especially looking for feedback
    on how to improve it (the Common LISP community was
    awesome in providing great feedback for the free LISP
    book - can the Java community do the same :-)
    
    Help yourself (on the 'Free Web Books" page):
    
    http://www.markwatson.com
    
    -Mark
- 5
  - processMouseEvent()
    MouseDown() and MouseUp() are deprecated; both have been replaced by
    processMouseEvent()... how can this be? (two diff. methods replaced by
    same method..)
    
    http://java.sun.com/j2se/1.5.0/docs/api/java/awt/Component.html#mouseDown(java.awt.Event,%20int,%20int)
    
    thank you..
    
    Frances
- 5
  - Announce: A new open source O/R mapping toolAnnounce:
    
    Molly DBO: A new open-source O/R mapping tool is out.
    
    There are many such programs out there. But this one is very
    special because it's simple (no xml configuration, yay !) and has
    been tested with postgres and mysql. This tool has been used
    extensively in production enviroments so the generated code has
    most bugs squeezed out by now.
    
    You can check it out at:
    
    http://www.mollypages.org/dbo/
- 5
  - Beginner, this will be a quick fix, so please check it out!!Hi, extreme noob here (less than one week of Java exerience, or any
    programming exp)
    
    This program i am writing from a book is suppose to ask the question
    "How many gumballs? How mand kids? " , and then allow the user to
    input the 2 answers. for example : 80 4
    
    but it doesn't ask that question, it just answers without asking! any
    help... ? this is from the Beginner Programming with Java for Dummies
    - 2nd Edition. I typed it straight out of the book, and checked it
    vary carefully. the output im currently gettins is... "Each kid gets 6
    gumballs"
    
    import java.util.Scanner;
    
    class KeepingMoreKidsQuiet {
    
    public static void main(String args[]) {
    Scanner myScanner = new Scanner(System.in);
    int gumballs;
    int kids;
    int gumballsPerKid;
    
    System.out.print("How many gumballs? How many kids? ");
    
    gumballs = myScanner.nextInt();
    kids = myScanner.nextInt();
    
    gumballsPerKid = gumballs / kids;
    
    System.out.print("Each kid gets ");
    System.out.print(gumballsPerKid);
    System.out.println(" gumballs.");
    }
    }
- 9
  - edit jtable with enteri am having a problem with jtable which i was unable to solve for a
    last couple a days. i think there needs to be much more docs on some
    tricky uses of jtable than basic JTable/TableModel usage. so far i
    managed to move to the next cell when i press enter (right hand side,
    instead of moving down).
    
    i'd like to start editing in the next cell after moving from previous
    cell. so, if i was in editing mode in some cell, enter should bring me
    to the next cell with caret blinking in it. of course, if i wasn't
    editing some cell i don't want to edit next cell.
    
    basicly, i want to make "row edit session", for example user starts
    editing a cell with f2, and as long as he press enter he edits next
    cell, until he reaches the end of the row and then changes are
    commited to database, just like M$Access and SQLserver does. i think i
    can do this myself, all i need is little help to start edit next cell
    if user moves from previous cell. i checked BasicTableUI source, and
    as i see i should get the editor component and request focus on it.
    but i am stuck with that.
    
    thanks!
- 11
  - Log4J problemHi everyone,
    
    Consider the following piece of code:
    
    Logger mylogger = Logger.getLogger(Log4JFileDeletionTest.class);
    
    public Log4JFileDeletionTest() throws Exception
    {
    FileAppender fapp = new FileAppender(new
    XMLLayout(),"/tmp/Log4JFileDeletionTest.log",true);
    mylogger.setLevel(Level.DEBUG);
    mylogger.addAppender(fapp);
    
    mylogger.info("This is a test log");
    
    Thread.sleep(7000);
    
    mylogger.info("This is after deleting the file");
    }
    
    If during the Sleep(), I delete the log file, then none of the
    subsequent log statements re-create the file. It remains deleted, no
    exceptions get thrown and all the logs are lost.
    
    Is there any solution to this, other than modifying the log4J code ?
    
    Thanks in advance.
- 11
  - jsp - fetching fresh inserted data - reload issue?hi ng,
    
    i have a form, where a user can input some data.
    after pressing submit, the controller.jsp makes some
    validations and shall list up this new entry.
    in short, my problem is, that this newest entry is
    not shown - but is correctly inserted into the db.
    
    + form.jsp : holds the form
    + controller.jsp : inserts form data into db,
    and queries the db to show the newest entry.
    
    after refreshing the site by hand, the newest entry
    is listed, BUT also in the db (duplicate in db!).
    i tried some java script solutions, top.mainFrame.location.reload()
    and adding some META-TAG in the HEAD-Tag of HTML, but no
    effects...
    
    feedback is appreciated, thanks in advance.
    
    with regards,
    jonas
- 11
  - policy file in eclipse.Hello.
    How can I declare in Eclipse the policy file (like policy.all : I don't know
    if that's matter, but I have version 3.3) ?
    
    Thanks :)
- 12
  - Porting C++ Template to Java GenericI've run into a road block with porting some C++ code that makes use
    of templates to Java. In it, there is a main class I'll call A that
    is a template class:
    
    // C++
    template <class T> class A
    public:
    virtual T Evaluate() const = 0;
    };
    
    Other classes extend this class:
    
    // C++
    template <class T> class B : public A<T> {
    public:
    B(const T &v) { value = v; }
    T Evaluate() const { return value; }
    private:
    T value;
    };
    
    Now all of this is easy to implement in Java using Generic
    programing. The issue I'm having is when I try to implement code like
    this:
    
    template <class T1, class T2> class C : public A<T2> {
    public:
    C(A<T1> a, A<T2> b) { t1 = a; t2 = b; }
    T2 Evaluate() {
    return t1->Evaluate() * t2->Evaluate();
    }
    private:
    A<T1> t1;
    A<T2> t2;
    };
    
    Java complains about about the * operator being undefined for
    arguments T1, T2; Since Java doesn't have operator overloading, I
    can't really see how to implement the same functionality. Has anyone
    ever encountered this type of problem, or can anyone see a way around
    this issue?
- 14
  - How to invoke jar cammand in the java source code?How to invoke jar cammand in the java source code?
    I want to click a button that invoke jar command zip selected item to
    a .zip package.
    Thankx!
- 14
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- 15
  - J2EE archirecht sitesHello,
    
    Any URLs for J2EE architecht sites?

Author

Message

Nadina

Posted: 2005-5-4 14:12:00

Top

java-programmer, web page and image processing Hello,

I need to do the following. Given an URL I need to produce a thumbnail
of the webpage. If you did something similar in the past, can you
please give me some pointers?

Thank you,
Nadina

Index ‹ java-programmer

Next
- 1
  - inner classes and static membersCan somebody please tell me a practical reason why you couldn't have
    static members (not constants) within an inner class? I know that this
    is forbidden, but I haven't found a practical, concrete reason for
    this... I was wondering if this was just a whimsical decision from the
    designers of the language.
    
    Thanks a lot in advance...
- 2
  - Read data with delimater using stringtokenizerHei,
    I have problem with this
    if i have test with
    aa,bb,cc,dd
    aa,,cc,dd
    
    and use
    StringTokenizer str=new StringTokenizer(str,",",false)
    after i read the data will be as
    aa
    bb
    cc
    dd
    aa
    cc
    dd
    the blank data in row 2 is missing. any suggestion or any suggestion on
    method using beside stringtokenizer?
    
    Cheers,
- 3
  - Loading a properties file using ResourceBundleI try to load a properties file using ResourceBundle. However, when I print
    out the data in the map table, they are not in order as in the properties
    file.
    
    Is there a way lo load the properties file using the ResourceBundle so that
    the data in the map table are listed in order as in the actual properties
    file.
    
    Example:
    The properties file contains
    ID1
    ID2
    ID3
    After loaded and when printed out from tha map table, it displayed as
    ID2
    ID1
    ID3
    
    Thanks
    
    --
    Message posted via http://www.javakb.com
- 4
  - ++i is faster than i++ in Java?I want to know in Java, is prefix operator faster than postfix
    operator?
    
    for example, ++i is faster than i++. I know in C++, this is the case,
    but not sure if Java is the same.
    
    please advise. thanks!!
- 5
  - encoding troublesHi all!
    
    I have a byte array of data which I want to post to an php script. So I send
    the representing string of the byte array using a post with utf-8 encoding.
    I figured java works with UTF-16BE internally, but after receiving the utf-8
    encoded post in php and converting it to back to UTF-16BE it was not the
    same...
    
    I wrote a little test and it turns out if i conver a byte array to utf-8 and
    back it wont match the original byte array, but the string representing it
    is the same:
    
    String test="some test";
    byte[] dest,temp;
    
    dest = test.getBytes();
    
    try {
    temp=new String(dest).getBytes("UTF-8");
    }catch(Exception e) { System.out.println(e); }
    
    try {
    test=new String(temp,"UTF-8");
    System.out.println(test);
    dest=test.getBytes();
    } catch(Exception e) { System.out.println(e); }
    
    if(dest==temp) System.out.println("Success!");
    else System.out.println("failed");
    
    How can I convert the UTF-8 bytes back to the original byte array? And will
    this work when posting to php? Its important the binary data remains intact
    instead of the string representation...
    
    Thanks in advance,
    
    Matthijs
- 6
  - Strange problem!!(it is, atleast to me!!)Although, this is not a programming or development problem instead its
    an end user problem which im facing and thought programmers /
    developers could help.
    
    I have Win XP SP2, JRE 1.5 installed with IE. Now for certain sites my
    applets dont refresh after i click them (well ofcourse i click where a
    click is expected :) this happens when i connect using my cable
    broadband connection.
    (I am connected to a local provider via LAN who provides me connection
    to the primary ISP). On the other hand evrything works as expected
    when i use dial up connection(using the phone line). Ive tried with
    many browsers and it doesn work. Ive tried everything i could. And the
    same site works well at my frnds place who has the same broadband ISP
    but hes on a different LAN and rest all settings are the same.
    
    The error i see on the console- " java.lang.NullpointerException Could
    not send message".
    
    I know the error wouldn be of much use but hope the explanation of the
    problem may have some solutions.
    
    Kindly help me.
- 7
  - Unc path on IntellijHi
    
    Is there a I can add unc path when ading Jar/Directory to Module
    Libraries on Intellij ?
- 8
  - Sun's WTK2.5 is asking for permission to contact network every timeI've just started using the final release of Sun's wireless toolkit
    (WTK) 2.5. It's asking for permission to contact the network each and
    every time network access happens - I'd like to switch it to asking only
    once times (or never, if possible), but can't find the option in the
    docs or via the tools in WTK2.5/bin. Can anyone shed any light on this?
    
    thanks,
    lex
- 9
  - How to Call two servletsHi Everyone,
    
    My most of programming experience is in Microsoft tools. mainly ASP. And in
    ASP we can "Include" one ASP file in an another ASP file. Can we do some
    thing similar with Servlets also..
    
    Say i want to Display two Lines on my Web page.
    
    This is First Test Line from Servlet one
    
    This is Second Test Line from Servlet Two.
    
    Where the line as it says come from servlet one and line two will come from
    servelt 2.. Or say i have a Main Servlet and now i want to call these 2
    servlets in there from my Main Servlet.
    
    Please help me there
    
    Thanks
    
    RSB
- 10
  - Struts & JSTL <c:out>Greetings:
    
    Relative newcomer to Struts and JSTL. My question is about using
    <c:out>, pageContext, and request.
    
    My experience has been doing to following in an appropriate action
    class. Setting an object as an attribute of the request in the execute
    method of the Action Class:
    
    request.setAttribute("object1", Obj1);
    
    Then in the corresponding JSP, pulling the object off the request and
    casting it for use:
    <% Obj1 local_Obj1 = (Obj1)request.getAttribute("object1");
    
    Then being able to use dot notation to access methods of Obj1.
    
    My question is that with JSTL <c:out> the object needs to be on the
    pageContext. Do I need to explicitly set this? If so where? How does
    this tag work in this situation?
    
    Any help on the matter is greatly appreciated.
    Thank you,
    Tim Morrissey
- 11
  - SSL HostnameVerifierWas getting "hostname wrong" when connecting via HttpsURLConnection.
    Setup my own HostnameVerifier, returned true, and problem went away.
    
    However, exactly what problem did I solve, and did I introduce a
    security risk? When the substitute HostnameVerifier was called, first
    argument "String urlHostName" was identical to second argument
    "SSLSession session.getPeerHost()", i.e., the IP address of the server
    from whom the certificate was obtained. What mismatch triggered the
    call to the substitute HostnameVerifier?
    
    Thanks.
- 12
  - access web service over pluginHi All,
    
    I'm trying to access a web service over a simple plugin. The web
    service is
    the "helloservice" example of jwsdp 1.3 .
    When I compile and run the example as java-project in eclipse, it
    works!
    But when I try to make a plugin, I get the error:
    
    Endpoint address = http://localhost:8080/hello-jaxrpc/hello
    hello obj: staticstub.HelloIF_Stub@5e8d7d
    java.lang.NullPointerException
    at com.sun.xml.rpc.soap.message.SOAPMessageContext.createMessage(SOAPMessageContext.java:114)
    at com.sun.xml.rpc.client.StreamingSenderState.<init>(StreamingSenderState.java:26)
    at com.sun.xml.rpc.client.StreamingSender._start(StreamingSender.java:46)
    at staticstub.HelloIF_Stub.sayHello(HelloIF_Stub.java:52)
    at staticstub.HelloClient.main(HelloClient.java:46)
    at hallo.actions.SampleAction.run(SampleAction.java:37)
    at org.eclipse.ui.internal.PluginAction.runWithEvent(PluginAction.java:251)
    at org.eclipse.ui.internal.WWinPluginAction.runWithEvent(WWinPluginAction.java:207)
    at org.eclipse.jface.action.ActionContributionItem.handleWidgetSelection(ActionContributionItem.java:456)
    at org.eclipse.jface.action.ActionContributionItem.handleWidgetEvent(ActionContributionItem.java:403)
    at org.eclipse.jface.action.ActionContributionItem.access$0(ActionContributionItem.java:397)
    at org.eclipse.jface.action.ActionContributionItem$ActionListener.handleEvent(ActionContributionItem.java:72)
    at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:81)
    at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:840)
    at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:2022)
    at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:1729)
    at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:1402)
    at org.eclipse.ui.internal.Workbench.run(Workbench.java:1385)
    at org.eclipse.core.internal.boot.InternalBootLoader.run(InternalBootLoader.java:858)
    at org.eclipse.core.boot.BootLoader.run(BootLoader.java:461)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    at java.lang.reflect.Method.invoke(Method.java:324)
    at org.eclipse.core.launcher.Main.basicRun(Main.java:291)
    at org.eclipse.core.launcher.Main.run(Main.java:747)
    at org.eclipse.core.launcher.Main.main(Main.java:583)
    
    Can someone help me??
    Thanks!
- 13
  - How Robots Will Steal Your JobHumour. Lost on you?
    
    CyberLegend aka Jure Sah <email***@***.com> wrote in message
    news:email***@***.com...
    > Airy R Bean wrote:
    > > Are owls more intelligent than chickens?
    > > Have you ever seen a shop selling Kentucky Fried Owl?
    > As a mater of fact I have never seen a shop selling Kentucky Fried
    > Chicken. I don't live in the USA.
    > It would be curious to know what your point was tho.
- 14
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    <?xml version=1.0 ?>
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    how to put this line
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  - doing something after so many times something has loadedHi am currently writing a java application. The program that i am
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