java-programmer >>butting components right up against each other

butting components right up against each other

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- 2
  - JAVA ?Oracle Programmers wantedHighly experienced JAVA / Oracle programmers wanted for a three month
    contract in South Africa (JHB). Must have had ERP experience with some
    integration skills.Open source experience an added advantage. Must be able
    to work in a team.
    
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  - sample jsp servlet application requiredHi geeks,
    I'm a beginner in jsp and servlets, i want a sample JSP-SERVLET
    applicaton with source code. Can you please tell me where can i get the
    sample applications.
    Thanks in advance...
- 9
  - HalfTruth=Lie (was: I'm still waiting for somebody to offer co...)> From: "Phlip" <email***@***.com>
    > The good is the enemy of the best.
    
    A half-truth is a lie.
    A bicycle with only one wheel isn't useful.
    Yin without yang isn't useful.
    A glass half full but not half empty, or vice versa, is not the whole
    picture.
    For nearly every cliche there's an opposite which is equally valid in
    different circumances.
    
    Please choose which of the following activities you would most and
    least like to participate in:
    (1) Have bamboo shoots driven up under your fingernails.
    (2) Undergo Chinese water torture.
    (3) Be trapped in a large tank with one (1) pihrana.
- 10
  - Changing button colors in a loopHi all:
    I am working on a task that should imitate an elevator. I have two vertical
    rows of round buttons "Up" and "Down" When a circle is selected randomly by
    the program, the circle becomes yellow and the elevator moves to that
    button.
    Here is what I did:
    1. created a class Circle where I save buttons' parameters
    2. saved Circle objects in an array
    3. drew the buttons depending on their parameters
    4. generated a random number, matched it with an array index and assigned
    the object color to yellow.
    
    Everything is fine except that I can't figure out how to change colors of my
    buttons in a loop. Help would be greatly appreciated!
    
    import javax.swing.*;
    import java.awt.*;
    import java.util.*;
    
    public class Elevator3 extends JPanel
    {
    private int n = 40;
    private int width = 200;
    private int floors = 10;
    private int interval = 1000;
    private boolean selected = false;
    private Circle[] buttons = new Circle[2*(floors-1)];
    
    public Elevator3()
    {
    build();
    
    JFrame frame = new JFrame("Elevator3");
    
    setBackground(Color.WHITE);
    setFont(new Font("SansSerif", Font.PLAIN, Math.round(n/3)));
    frame.getContentPane().add(this);
    
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame.setSize(width, n*(floors+2) );
    frame.setVisible(true);
    }
    
    public void build()
    {
    Random r = new Random();
    int buttonPick;
    
    int timeUntilNextButton = r.nextInt(interval);
    
    for (int k =0; ; k++)
    {
    if (timeUntilNextButton-- ==0)
    {
    buttonPick = r.nextInt(2*(floors-1));
    
    //populate my buttons array here - how??
    
    timeUntilNextButton = r.nextInt(interval);
    
    }
    
    }
    
    //adding "Down" buttons
    for (int i=1, count=0; i < floors; i++, count++)
    {
    if (count == buttonPick)
    selected = true;
    else
    selected = false;
    
    buttons[count]= new Circle(n*2, n*i, selected, Math.round(n/2));
    }
    
    //build an array of "Up" circles
    for (int i=2, count=floors-1; i < floors+1; i++, count++)
    {
    if (count == buttonPick)
    selected = true;
    else
    selected = false;
    
    buttons[count]= new Circle(n, n*i, selected, Math.round(n/2));
    }
    
    }
    
    public static void main(String[] args)
    
    {
    new Elevator3();
    
    }
    
    protected void paintComponent(Graphics g)
    
    {
    super.paintComponent(g);
    
    //draw buttons
    for (int i=0; i < buttons.length; i++)
    {
    g.setColor(buttons[i].getColor());
    g.fillOval(buttons[i].getX(), buttons[i].getY(),
    buttons[i].getWidth(), buttons[i].getWidth());
    }
    
    }
    
    }
    
    class Circle
    {
    private int x;
    private int y;
    private Color c;
    private boolean pressed;
    private int width;
    
    public Circle(int xCoordinate, int yCoordinate, boolean selected,
    int diameter)
    {
    x = xCoordinate;
    y = yCoordinate;
    pressed = selected;
    width = diameter;
    
    if (pressed)
    c = Color.YELLOW;
    
    else
    c = Color.LIGHT_GRAY;
    
    }
    
    public Color getColor()
    {
    return c;
    }
    
    public int getX()
    {
    return x;
    }
    
    public int getY()
    {
    return y;
    }
    
    public int getWidth()
    {
    return width;
    }
    
    }
- 11
  - File upload with JSF.....Hi,
    i'm a new user of java. I have a question. I have to develop a JSF
    application that make user able to:
    
    1) Upload a txt file
    2) Showing to user columns and rows numbers of file.
    
    For this second operation i'have developed a java application that
    receive a txt file from a BufferedReader and counts rows and columns
    number.
    My questions are:
    
    1) How can i realize file upload with JSF?
    2) In which format a file is uploaded?
    3) Can i use my java application for counting rows and columns number
    of file?
    
    Can you help me?Please use easy concepts because i'm inexpert.....
- 13
  - PropertyChangeListener not recognizing changes to a putClientPropertyI must be missing out on something fundamental . . . why doesn't the
    following code ever register a PropertyChangeEvent?
    
    import java.beans.*;
    import javax.swing.*;
    import java.awt.*;
    import java.awt.event.*;
    import javax.swing.text.*;
    
    public class PropTest extends JFrame {
    private Boolean myBoolean = Boolean.FALSE;
    
    public PropTest() {
    super("PropertyChangeListener Test");
    JPanel panel = new JPanel();
    JButton button = new JButton(new BooleanAction("Button pushed"));
    button.setText("Push me!");
    panel.putClientProperty("myBoolean", myBoolean);
    panel.addPropertyChangeListener("myBoolean", new BooleanListener());
    panel.add(button);
    panel.getInputMap().put(KeyStroke.getKeyStroke(KeyEvent.VK_SPACE, 0),
    "space");
    panel.getActionMap().put("space", new BooleanAction("Space
    pressed"));
    this.getContentPane().add(panel);
    }
    
    private class BooleanAction extends AbstractAction {
    String title;
    public BooleanAction(String title) {
    super();
    this.title = title;
    }
    
    public void actionPerformed(ActionEvent e) {
    System.out.println(title);
    System.out.println("Old value: " + myBoolean.toString());
    myBoolean = new Boolean(!myBoolean.booleanValue());
    System.out.println("New value: " + myBoolean.toString());
    }
    }
    
    private class BooleanListener implements PropertyChangeListener {
    public void propertyChange(PropertyChangeEvent e) {
    System.out.println("Hey, you changed my value!");
    }
    }
    
    public static void main(String[] args) {
    PropTest propTest = new PropTest();
    propTest.setResizable(false);
    propTest.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    propTest.pack();
    propTest.setVisible(true);
    }
    }
- 13
  - class not found within IEHi,
    
    I've written an applet. It properly works with Mozila. But with
    Internet Explorer it says "Class [the applet's name] not found" or
    something.
    What is the problem? How can I fix it?
    
    Thank you,
    Siamak
- 16
  - Balanced TreeI was wondering if there were a built in (or freely available) library for
    handling balanced trees.
    
    I find many projects use them or could benefit from them.
    
    :)
- 16
  - Is it possible to write an applet that reads image and data files from web server that is easy for end users?My background:
    
    4th year computer science student.
    
    The school that I am studying at teaches a lot of java, but they haven't
    ever touched upon applets. I don't have much experiance with applets and
    I find that applets are excercising my patience. I thought I would
    attempt to write an involved applet and the program I was writing was
    working very well and I was pleased with the way it as coming out. I
    then put it on a web server and discovered all of the security problems
    with running applets off of the web. I am at a point now where I might
    want to totally abandon the project using java and move over to c++ and
    just write an app that uses an exe.
    
    I have done a lot of searching on the net for the info that seems to be
    eluding me. I am searching for and It is not clear to me if I can do
    what I wish to do without all of the damn security exceptions.
    
    My main question:
    
    I want to develop an application that runs from a browser window as an
    applet using Java. I want to be able to read files from the same server
    and directory structure which has the html files. The files that I would
    be reading would be jpg's and gif's and either text files or binary
    files for the data. It would also be nice to write to the directory, but
    at this point I would just be satisfied to be able to just read files.
    
    The users that I expect to use this applet are not expected to be very
    competant computer users. It is very important that the applet just run
    from a link or other simple method. Can I do this from a jar file
    without having to use certificates and/or java policy file
    modifications.
    
    I don't want to give up on java just yet, but this security thing is
    killing it for me.
    
    I have even thought about planting the data within the source code, but
    that to me seems too damn messy, and just plain wrong.
    
    I would just like if people could tell me one way or another if my
    program would be possible.
    
    Jean-Paul Lanaux
- 16
  - Configuring Tomcat to NOT use webapps directorycurrently my webapps directory is something like:
    
    C:\java\netbeans3.5.1\tomcat406\webapps
    
    This is where the Netbeans install put it. I want to move the
    directory to something a little more convenient to work with like:
    
    c:\webapps
    
    All I can find in the Tomcat configuration file is:
    
    <Host name="localhost" debug="0" appBase="webapps" unpackWARs="true">
    
    but if I change appBase to anything like "c:\webapps" or "c:/webapps"
    it doesn't work. Can anybody tell me how to move the appBase
    directory outside of the Tomcat or Netbean directory?
    
    Thanks in advance.
    Dean
- 16
  - checkbox ploblem pls help!!i was new in java and i now completed add the checkbox in each node but the
    ploblem is i cant click the check box..
    what should i do in next step... pls help me thank you..
    following is my code
    
    fileTree.setCellRenderer(new DefaultTreeCellRenderer()
    {
    public Component getTreeCellRendererComponent(JTree tree, Object
    value,
    boolean sel, boolean expanded, boolean leaf, int row, boolean hasFocus)
    {
    super.getTreeCellRendererComponent(tree, value, sel, expanded, leaf,
    row, hasFocus);
    JCheckBox chk = new JCheckBox();
    chk.setContentAreaFilled(false);
    chk.setEnabled(true);
    //
    chk.setBorderPaintedFlat(true);
    chk.setOpaque(false);
    
    JPanel jPanel = new JPanel(new BorderLayout());
    jPanel.add(chk, BorderLayout.WEST);
    jPanel.add(this, BorderLayout.EAST);
    return jPanel;
    }
    
    --
    Message posted via http://www.javakb.com
- 16
  - JavaDoc Ignore TagsHi all,
    
    Is it possible to tel JavaDoc to ignore certain XDocLet tags, and/or not raise a warning that it is
    unknown?
    
    I am currently running JavaDoc through an Ant task, and wish to hide the warnings about my
    @hibernate tags.
    
    Regards,
    --
- 16
  - JTable row selection (left and right mouse)Is it possible to be able to allow users to use either the left or the right
    mouse button to select one or more
    rows in a JTable, and upon the selection, be able to tell which mouse button
    they used to select the row(s)?
    
    I have 15 tables on the screen. The user needs to select one or more rows
    from one table (the source)
    and then the same number of rows in another table (the destination) and then
    I need to swap the row
    data from both tables. So, I need a way to differentiate between the
    selections on the source and the
    destination tables.
    
    Thank you.
- 16
  - Static fields accessed by getter/setter...what happens?(apology for duplicate post, I felt I posted in the wrong forum earlier.)
    Could someone please enlighten me as to what will happen if I have:
    
    public class MyClass
    {
    public static String someName = null;
    
    public void setSomeName(String s)
    {
    someName = s;
    }
    
    public void getSomeString()
    {
    return someString;
    }
    }
    
    I'm not sure how the static field is being handle using non-static getters/setters.
    Thanks
    Stacey

Author

Message

Daniel Dyer

Posted: 2003-6-27 22:37:00

Top

java-programmer, butting components right up against each other On Fri, 27 Jun 2003 13:29:59 GMT, Roedy Green <email***@***.com> wrote:

> On Fri, 27 Jun 2003 14:06:22 +0100, Daniel Dyer
> <email***@***.com> wrote or quoted :
>
>> Sorry, I didn't mean ipadx/ipady, that won't help. You certainly
>> shouldn't need to use absolute positioning though. Do you have any
>> sample code to show us?
> I just wanted to put a string of JTextFields with black backgrounds
> right against each other so they look like one continuous field.

Have you tried setting the borders on the text fields to null? Maybe it's
the borders that make it look like there's a gap. Have you tried a
different layout (maybe try GridLayout, just to see if it looks the same,
it's much simpler so it will be easier to spot if you've done something
wrong).

Dan.

--
Daniel Dyer
Empathy Software (http://www.empathysoftware.com)

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JuddMan!

Posted: 2003-6-27 23:22:00

Top

java-programmer >> butting components right up against each other
"Daniel Dyer" <email***@***.com> wrote in message
news:oprrfj69lziihdmk@localhost...
> On Fri, 27 Jun 2003 13:29:59 GMT, Roedy Green <email***@***.com> wrote:
>
> > On Fri, 27 Jun 2003 14:06:22 +0100, Daniel Dyer
> > <email***@***.com> wrote or quoted :
> >
> >> Sorry, I didn't mean ipadx/ipady, that won't help. You certainly
> >> shouldn't need to use absolute positioning though. Do you have any
> >> sample code to show us?
> > I just wanted to put a string of JTextFields with black backgrounds
> > right against each other so they look like one continuous field.
>
> Have you tried setting the borders on the text fields to null? Maybe it's
> the borders that make it look like there's a gap. Have you tried a
> different layout (maybe try GridLayout, just to see if it looks the same,
> it's much simpler so it will be easier to spot if you've done something
> wrong).
>

also try FlowLayout.

Index ‹ java-programmer

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    The performance was pretty good and I'd like to stick with
    the OCI part but not with CGI-BIN.
    
    I just began the third approach: using SSH. The server part
    is a given since it comes ready in Linux, and I got the Java
    client part from sshtools.com.
    
    I have read about servlets, Tomcat, etc. but it looks like once
    I get into that stuff (the area seems to be called "Enterprise"),
    the tools become extremely expensive (for instance I will have
    to upgrade my $700 Developer JBuilder to a $3500 Enterprise JBuilder).
    
    The issue of performance still worries me (I am a speed freak):
    I wish I could just use the Unix R-commands (rsh, etc.) so all
    the encrypting-decrypting doesn't get in the way of client
    performance (my app is Intranet in a trusted environment) but
    I guess I can live with the more modern, secure, etc., SSH.
    
    Thanks very much for sharing your expert insight on this,
    (and if you are a writer deciding on a topic, I'll bet that
    this one will sell a lot of books! - anyone from O'Reilly
    out there?)
    
    -Ramon F Herrera
- 8
  - How to control the cursor positon of java program in console mode?I am writing a small database that requires user input.
    
    However, whenever something is output to the screen, the cursor stays at the
    beginning of the output instead of the end of the output.
    
    How can I let it go to the end of the output?
    
    For example:
    
    say, the output is like this:
    
    This is a database. Please input your information below.
    prompt:>
    
    I want the cursor to go to after the ">" sign but it stays in front of
    "this" although whenever the user presses the keyboard it goes the end after
    ">".
    
    This is not a big problem but makes my application look not so professional.
    
    Anyway to cure this?
    
    John
- 9
  - "Invalid column name" inserting a row with weblogic/oracle
    
    bsaastad wrote:
    
    > Hello,
    >
    >
    >
    > Environment
    >
    > Weblogic 8.1, Oracle 9.0.1, JDK1.4
    >
    >
    >
    > I am attempting to migrate from WLS 6.1 to WLS 8.1. All appears to work
    > with the exception of database inserts. They ALWAYS fail and return an
    > "ORA-00904: invalid column name". I am connecting to the database via a
    > pooled data source. This code worked fine under WLS6.1 using the
    > Weblogic JDriver. The JDriver performs the inserts under 8.1 but the
    > Statement.executeBatch() command returns a 0-length int[] (an
    > acknowledged bug in the JDriver.) BEA says to use the drivers supplied
    > by Oracle. I have tried both the type 4 driver and the type 2 oci
    > driver with exactly the same result.
    
    Odd. Would you pleaes download the latest appropriate version of
    oracle's driver and either run this code in a standalone program
    getting your connection directly from the driver, or get the driver
    to the front of the -classpath argument in the startWeblogic script,
    and then run this code in the server again?
    thanks,
    Joe Weinstein at BEA
    
    >
    >
    >
    > I can query the database via the connection and dump the contents of the
    > queried row along with the column names using the ResultMetaData.
    >
    >
    >
    > ex.
    >
    >
    >
    > ResultSet rs = stmt.executeQuery( sqlCmd );
    >
    > ResultSetMetaData rsmd = rs.getMetaData();
    >
    > System.out.println( "Results of '" + sqlCmd + "'");
    >
    > while ( rs.next() )
    >
    > {
    >
    > for( int i = 1; i <= rsmd.getColumnCount(); i++)
    >
    > {
    >
    > System.out.println( "'" + rsmd.getColumnName(i) +
    > "=" + rs.getString( i ) + "' " );
    >
    > }
    >
    > }
    >
    >
    >
    > .. produces:
    >
    >
    >
    > Results of 'SELECT POOL_ID, POOL_NM, POOL_DESC, REV_BY, REV_DT FROM
    > POOL_R WHERE POOL_ID = 11'
    >
    >
    >
    > 'POOL_ID=11'
    >
    > 'POOL_NM=COMM'
    >
    > 'POOL_DESC=Communications Servers'
    >
    > 'REV_BY=saastabp'
    >
    > 'REV_DT=2002-12-16'
    >
    >
    >
    > Then when I turn around and try to insert a row like this:
    >
    >
    >
    > String sqlCmd = "INSERT INTO POOL_R (POOL_ID, POOL_NM, POOL_DESC,
    > REV_BY, REV_DT) VALUES (100, 'FRED', 'TEST POOL NAME FOR FRED', 'test-
    > user', {ts '2003-10-24 16:00:26.703'})";
    >
    >
    >
    > System.out.println( "[" + sqlCmd + "]");
    >
    > stmt.executeUpdate( sqlCmd);
    >
    >
    >
    > .. I get the exception below. Has anyone seen this before? Any ideas?
    >
    >
    >
    > Thanks,
    >
    > -Brian
    >
    >
    >
    > [INSERT INTO POOL_R (POOL_ID, POOL_NM, POOL_DESC, REV_BY, REV_DT) VALUES
    > (100, 'FRED', 'TEST POOL NAME FOR FRED', 'test-user', {ts '2003-10-24
    > 16:00:26.703'})]
    >
    >
    >
    > java.sql.SQLException: ORA-00904: invalid column name
    >
    >
    >
    >
    >
    > at weblogic.rjvm.BasicOutboundRequest.sendReceive(BasicOutbound-
    > Request.java:108)
    >
    >
    >
    > at weblogic.rmi.internal.BasicRemoteRef.invoke(BasicRemoteRef-
    > .java:138)
    >
    >
    >
    > at weblogic.jdbc.rmi.internal.StatementImpl_weblogic_jdbc_wrapp-
    > er_Statement_oracle_jdbc_driver_OracleStatement_811_WLStub.exec-
    > uteUpdate(Unknown Source)
    >
    >
    >
    > at weblogic.jdbc.rmi.internal.StatementStub_weblogic_jdbc_rm-
    > i_internal_StatementImpl_weblogic_jdbc_wrapper_Statement_ora-
    > cle_jdbc_driver_OracleStatement_811_WLStub.executeUpdate(Unk-
    > nown Source)
    >
    >
    >
    > at weblogic.jdbc.rmi.SerialStatement_weblogic_jdbc_rmi_internal-
    > _StatementStub_weblogic_jdbc_rmi_internal_StatementImpl_weblogi-
    > c_jdbc_wrapper_Statement_oracle_jdbc_driver_OracleStatement_811-
    > _WLStub.executeUpdate(Unknown Source)
    >
    >
    >
    > at com.billing.tm.persist.BatchTest.doInsert(BatchTest.java:93)
    >
    >
    >
    > at com.billing.tm.persist.BatchTest.main(BatchTest.java:185)
    >
    >
    >
    > Caused by: java.sql.SQLException: ORA-00904: invalid column name
    >
    >
    >
    >
    >
    > at oracle.jdbc.dbaccess.DBError.throwSqlException(DBError-
    > .java:134)
    >
    >
    >
    > at oracle.jdbc.ttc7.TTIoer.processError(TTIoer.java:289)
    >
    >
    >
    > at oracle.jdbc.ttc7.Oall7.receive(Oall7.java:579)
    >
    >
    >
    > at oracle.jdbc.ttc7.TTC7Protocol.doOall7(TTC7Protocol.java:1894)
    >
    >
    >
    > at oracle.jdbc.ttc7.TTC7Protocol.parseExecuteFetch(TTC7Protocol-
    > .java:1094)
    >
    >
    >
    > at oracle.jdbc.driver.OracleStatement.executeNonQuery(OracleSta-
    > tement.java:2132)
    >
    >
    >
    > at oracle.jdbc.driver.OracleStatement.doExecuteOther(OracleStat-
    > ement.java:2015)
    >
    >
    >
    > at oracle.jdbc.driver.OracleStatement.doExecuteWithTimeout(Orac-
    > leStatement.java:2877)
    >
    >
    >
    > at oracle.jdbc.driver.OracleStatement.executeUpdate(OracleState-
    > ment.java:858)
    >
    >
    >
    > at weblogic.jdbc.wrapper.Statement.executeUpdate(Statement-
    > .java:328)
    >
    >
    >
    > at weblogic.jdbc.rmi.internal.StatementImpl_weblogic_jdbc_wrapp-
    > er_Statement_oracle_jdbc_driver_OracleStatement.executeUpdate(U-
    > nknown Source)
    >
    >
    >
    > at weblogic.jdbc.rmi.internal.StatementImpl_weblogic_jdbc_wrapp-
    > er_Statement_oracle_jdbc_driver_OracleStatement_WLSkel.invoke(U-
    > nknown Source)
    >
    >
    >
    > at weblogic.rmi.internal.BasicServerRef.invoke(BasicServerRef-
    > .java:466)
    >
    >
    >
    > at weblogic.rmi.internal.BasicServerRef$1.run(BasicServerRef-
    > .java:409)
    >
    >
    >
    > at weblogic.security.acl.internal.AuthenticatedSubject.doAs(Aut-
    > henticatedSubject.java:353)
    >
    >
    >
    > at weblogic.security.service.SecurityManager.runAs(SecurityMana-
    > ger.java:144)
    >
    >
    >
    > at weblogic.rmi.internal.BasicServerRef.handleRequest(BasicServ-
    > erRef.java:404)
    >
    >
    >
    > at weblogic.rmi.internal.BasicExecuteRequest.execute(BasicExecu-
    > teRequest.java:30)
    >
    >
    >
    > at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java)
    >
    >
    >
    > at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:170)
    >
    >
    > --
    > Posted via http://dbforums.com
- 10
  - DB Selection - J2MEHi,
    
    I am developing an application for PDAs using IBMs
    VM (J9). Now my problem is, that I want to store
    data on the device. Well, I am using J2ME with
    Personal Profile to do this, so file support is
    present in this configuration. Now I wonder if
    there exist solutions to store data and easily
    retrieve it. (commercial, free, open source)
    
    I have to store data on the device, add new
    data often, update and delete old data sometimes.
    
    1. So how do you store data, when not having present
    a complete RDBMS?
    2. There are RDBMS for this platform too.
    Any experiences using them?
    (for example Pointbase)
    3 There is this JDO Option (for example
    with ObjectDB) is this working well?
    4. What do you think of the following options,
    which I already found, but have no idea
    whether they will work?
    
    I alread checked:
    -JDMB (rather minimalistic, only key/value pairs to be saved)
    -JISP (produces rather big files -> not suitable for
    constrained devices?)
    -HSQL (Anybody got that to work within the mentioned configuration?
    I think mainly the java.sql.* classes are missing in the
    personal profile)
    -ObjectDB (OODB with JDO, no idea exactly if this will
    work for my purposes)
    
    Any help will be appreciated
    Rene
- 11
  - data lost issue using socketsHi,
    
    I have an interesting issue with socket programming.
    
    I would like to send String based information via Sockets.
    
    As it could happen, that a part of the information gets lost on its
    way to the client, I would like to send before all such packages the
    size of the package as a "short" value (or something equal, but not
    string because you can never be sure that your string completely
    arrived ).
    
    Does anybody know what is an elegant solution for this problem?
    
    I send the strings using:
    
    PrintWriter out = new PrintWriter(client.getOutputStream(), true);
    out.println("test");
    
    Thanks,
    
    korcs
- 12
  - Eclipse: browsing sourcecode using { as marksHello everyone,
    
    I am using eclipse 3.0.2 on Linux. Is it possible to browse
    Java-sourcecode using the brackets { as a jumping point?
    example
    
    public void foo(){ <- first entry
    
    if(isFoo){ <- second entry
    
    doFoo();
    
    }else{ <- third entry
    
    doAnotherFoo();
    
    }
    
    thanks alot for any help!
    
    kind regards
    
    Oliver
- 13
  - gui builder for javaHi,
    
    I just started programming java and I am looking for a free gui builder for
    java on linux or windows platforms. Where can I find it.
    
    thanks
    
    Johan
- 14
  - type safety in java 1.5 (bug or hole?)"John C. Bollinger" <email***@***.com> schrieb im Newsbeitrag
    news:c8g89n$esu$email***@***.com...
    
    > It would all the same be a nice complement to generics if the 1.5
    > compiler would indeed issue warnings about user-inserted casts that are
    > not provably correct. (I.e. those that the compiler cannot simply
    > ignore). That would give Bracha's comment (that started this confusion)
    > broad enough scope to no longer be confusing.
    
    I agree very much.
    
    BTW, there's another comment from Bracha in the very same paper that's
    confusing (me): He says "The Java virtual machine does not directly support
    overriding of methods with different return types. This feature is supported
    by the compiler.". What does this mean? Does this mean that the different
    return types are gone at run time? Here's an example:
    
    static class A {
    static A create() { return new A(); }
    public A m(A a) { System.out.println("A->A"); return a; }
    }
    
    static class B extends A {
    static B create() { return new B(); }
    public B m(A a) { System.out.println("A->B"); return (B) a; }
    public B m(B b) { System.out.println("B->B"); return b; }
    }
    
    public void testOverriding() {
    A a_a = A.create(); // static type A, dynamic type A
    A a_b = B.create(); // static type A, dynamic type B
    B b_b = B.create(); // static type B, dynamic type B
    
    A a2 = a_a.m(a_b); // prints: A->A
    A a3 = a_a.m(b_b); // prints: A->A
    
    A a5 = a_b.m(a_b); // prints: A->B <== overriding works
    A a6 = a_b.m(b_b); // prints: A->B <== overriding works
    
    B b2 = b_b.m(a_b); // prints: A->B
    B b3 = b_b.m(b_b); // prints: B->B
    }
    
    public void testReflection() {
    try {
    System.out.println(
    B.class.getMethod("m", new Class[] {A.class}).getReturnType()
    == B.class
    ); // prints: true <== reflection works, too
    }
    catch (Throwable t) {
    throw new RuntimeException("Laufzeitfehler", t);
    }
    }
    
    So there's obviously some runtime support for overriding methods with a
    different return type, because in this example both the overriding and the
    reflection worked. Then what did Bracha mean?
    
    2004-05-24, York.
    --
    werres at uni minus bremen.de
    http://www.uni-bremen.de/~werres
- 15
  - 'back engineering' java appletshi,
    
    is it possible to gain access to java code by a user using an applet over
    the web? i know with some scripting languages like PHP or javascript then
    users can view the code and 'back engineer' it to discover how it works etc.
    
    is this possible with java?
    
    thanks