Regarding resizing the JLabel dynamically

hi all, again, some question in JLabel
i have created an simple applet which have many JLabel on it, my question are:
1. those JLabel just can't show on the applet, where i have set the location and the text on it, but still...can't
2. how can i dynamically set the location where the JLabel should located at? i mean, the JLabel should follow exactly just in a straight row like below
Jlabel1 - Jlabel2 - Jlabel3 -... JlabelN
thank you for reply

hi, i have done the creation of Jlabel and have the layout of NULL, because i have to fit the Jlabel into a larger panel in only 1 single row, no choice but have to use NULL. but the real problem is that the display of Jlabel just won't show, i have to manually set the length by using Jlabel.setSize(..., ...), why? isn't any other way to resize and make it fit the character in the Jlabel? how?

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Can anyone help in resizing the JLabel object

Hi,
can anyone help me in resizing the JLabel object after being dropped onto the DropContainer. I'm providing the code below
import javax.swing.*;
import java.awt.*;
import java.awt.datatransfer.DataFlavor;
import java.awt.datatransfer.Transferable;
import java.awt.datatransfer.UnsupportedFlavorException;
import java.awt.dnd.*;
import java.io.File;
import java.io.Serializable;
import java.awt.event.*;
import java.awt.Insets;
import java.awt.Dimension;
public class project2 extends JApplet implements Runnable{
private DragContainer dragcontainer;
private DropContainer dropcontainer;
private DefaultListModel listModel,listModel1;
public void start() {
Thread kicker = new Thread(this);
kicker.start();
public void run() {
project2 dndapplet = new project2();
dndapplet.init();
public void init() {
try {
getContentPane().setLayout(new BorderLayout());
listModel = new DefaultListModel();
dragcontainer = new DragContainer(listModel);
getContentPane().add(BorderLayout.WEST, new JScrollPane(dragcontainer));
listModel1=new DefaultListModel();
dropcontainer = new DropContainer(listModel1);
getContentPane().add(BorderLayout.CENTER,new JScrollPane(dropcontainer));
catch (Exception e) {
System.out.println("error");
fillUpList("images");
setSize(700, 300);
public static void main(String[] args) {
Frame f = new Frame("dndframe");
project2 dndapplet = new project2();
//Point pos=new Point();
f.add(dndapplet);
dndapplet.init();
dndapplet.start();
f.show();
private void fillUpList(String directory) {
File dir = new File(directory);
File[] files = dir.listFiles();
for (int i = 0; i < 11; i++) {
listModel.addElement(new ImageIcon(directory + "\\" + files.getName()));
class Cursor extends Object implements Serializable
public static final int SE_RESIZE_CURSOR=0;
int cursor;
public Cursor(int SE_RESIZE_CURSOR)
cursor=SE_RESIZE_CURSOR;
class ImageTransferable implements Transferable, Serializable
ImageIcon imageIcon;
public static final DataFlavor IMAGE_FLAVOR = DataFlavor.imageFlavor;
public DataFlavor[] getTransferDataFlavors()
return new DataFlavor[] {IMAGE_FLAVOR};
public ImageTransferable(ImageIcon imageIcon)
this.imageIcon = imageIcon;
public Object getTransferData(DataFlavor f) throws UnsupportedFlavorException
if (!isDataFlavorSupported(f))
throw new UnsupportedFlavorException(f);
return imageIcon;
public boolean isDataFlavorSupported(DataFlavor aFlavor)
return IMAGE_FLAVOR.equals(aFlavor);
class DragContainer extends JList implements DragGestureListener, DragSourceListener
private DragSource iDragSource = null;
public DragContainer(ListModel lm)
super(lm);
iDragSource = new DragSource();
iDragSource.createDefaultDragGestureRecognizer(this,DnDConstants.ACTION_COPY_OR_MOVE, this);
public void dragGestureRecognized(DragGestureEvent aEvt)
ImageIcon imageSelected = (ImageIcon) getSelectedValue();
ImageTransferable imsel = new ImageTransferable(imageSelected);
if (imageSelected != null)
System.out.println("startdrag...");
iDragSource.startDrag(aEvt, DragSource.DefaultCopyNoDrop, imsel, this);
else
System.out.println("Nothing Selected");
public void dropActionChanged(DropTargetDragEvent event)
public void dropActionChanged(DragSourceDragEvent event)
public void dragDropEnd(DragSourceDropEvent event)
public void dragEnter(DragSourceDragEvent event)
public void dragExit(DragSourceEvent event)
public void dragOver(DragSourceDragEvent event)
DragSourceContext context = event.getDragSourceContext();
context.setCursor(null);
context.setCursor(DragSource.DefaultCopyDrop);
class DropContainer extends JList implements DropTargetListener,MouseListener
private DropTarget iDropTarget = null;
private int acceptableActions = DnDConstants.ACTION_COPY_OR_MOVE;
JLabel imgLabel=null;
public int dropX;
public int dropY;
public int x;
public int y;
public DropContainer(ListModel lm1)
super(lm1);
iDropTarget = new DropTarget(this, this);
setBackground(Color.white);
public void drop(DropTargetDropEvent aEvt)
Point location=null;
ImageIcon icon=null;
Transferable transferable=null;
//int dropX=0;
//int dropY=0;
try
transferable = aEvt.getTransferable();
location=new Point();
if(transferable.isDataFlavorSupported(ImageTransferable.IMAGE_FLAVOR))
aEvt.acceptDrop(acceptableActions);
icon = (ImageIcon)
transferable.getTransferData(ImageTransferable.IMAGE_FLAVOR);
setLayout(null);
imgLabel=new JLabel();
imgLabel.setIcon(icon);
imgLabel.addMouseListener(this);
location=aEvt.getLocation();
dropX=location.x;
dropY=location.y;
imgLabel.setBounds(dropX,dropY,icon.getIconWidth(),icon.getIconHeight());
this.add(imgLabel);
SwingUtilities.updateComponentTreeUI(this.getRootPane());
aEvt.getDropTargetContext().dropComplete(true);
else
System.out.println("rejecting drop");
aEvt.rejectDrop();
aEvt.getDropTargetContext().dropComplete(false);
catch (Exception exc)
exc.printStackTrace();
aEvt.rejectDrop();
aEvt.getDropTargetContext().dropComplete(false);
finally
location=null;
transferable=null;
icon=null;
imgLabel=null;
public void mousePressed(MouseEvent e)
x=e.getX();
y=e.getY();
public void mouseReleased(MouseEvent e)
int temp1,temp2;
temp1=y;
temp2=x;
imgLabel.setSize(temp1,temp2);
public void mouseEntered(MouseEvent e) {}
public void mouseExited(MouseEvent e) {}
public void mouseClicked(MouseEvent e) {}
public void dragEnter(DropTargetDragEvent event)
System.out.println("dragenter");
event.acceptDrag(acceptableActions);
public void dragExit(DropTargetEvent event)
System.out.println("dragexit");
public void dragOver(DropTargetDragEvent event)
System.out.println("dragover");
event.acceptDrag(acceptableActions);
public void dropActionChanged(DropTargetDragEvent event)
System.out.println("dropactionchanged");
event.acceptDrag(acceptableActions);
}//class DropContainer

Hi all,
I have two classes, say 1st and 2nd.
I have created an object of the second class in the first class and also i have invoked a method of the second class using it's object from the first class.
but when i compile the first class i'm getting an error that "cannot access the second class".
can anyone help me in fixing this problem
thanks in advance
murali

JPaint resizing the canvas dynamically

Hi guys,
I am in the process of creating a program similar to MSPaint. The problem I am facing right now is how can I resize the image/canvas like in the MS Paint?? Do I need to have a multiple frame or a multiple panel inside?? Any suggestions??

If you open MS Paint you'll know what I mean, you can resize the canvas any time you want. This is what I did so far:
public class JPaintPanel extends JPanel implements JPaintView, ImageObserver{
     private     BufferedImage picture;
     private JPaintController control;
     public JPaintPanel(JPaintController jpc){
          picture = jpc.getImageCopy();
          control = jpc;
          UpdateListener ul = new UpdateListener();
          addMouseListener(ul);
          addMouseMotionListener(ul);
     public void paintComponent(Graphics g){
          super.paintComponent(g);
          Graphics2D g2 = (Graphics2D) g;
          g2.setColor(Color.BLACK);
          g2.drawImage(picture, null, 0, 0);
          control.drawToolActivity(g2);
     private void updateWindow(){
          super.repaint();
     }so I asked paintComponent to draw a blank image here (which is picture). However when I already draw that Image I can't resize it from the user....

How do I stop iPhone Safari from dynamically resizing the visual viewport?

Sorry I post this here, but I couldn't access the developer forums (no error given, it just keeps returning me to this page https://developer.apple.com/devforums/) I'm not even sure wether that's been moved here and it's just the redirection non working.
I need to Stop iPhone Safari from dynamically resizing the visual viewport, or in other words, to stop it from trying to "fit" the layout into the viewport.
Why?
Because any recalculation javascript does on absolutely positioned elements makes the whole site super IRRESPONSIVE.
I don't know wether the issue is the element going out the already-set layout viewport (which triggers the page resizing to fit the visual viewport) or just the calculations being made constantly, but I can stop the calculations from happening when not "touching" the screen, but I need a way to stop the page resizing.
I tried setting the viewport width to 1040px, as my layout width, and it fixed the header's width being narrower than the body (or shifted left?), but the whole page is still resized with every motion-frame (one every 3 seconds, due to overloading the redrawing engine)
Is there a way to prevent that?

No, that link doesn't solve it. It just says the same is found everywhere online.
There's probably no way to do it, as per their way they "accidentally" omitted the oposite case: the page being wider than 980. They only mention what to do if the site is narrower. Something I learned is big companies (with reputation management) could let you run in circles for years no answer rather than telling you something is not possible.
I'm the developer (can't access the dev forums, don't know why) and I DID setup the viewport, scale and other properties but none of them stopped from re-fitting the new re-sized layout in the viewport. They just ensure the "initial" view.
I think the feature I'm looking for must be achieved with some JavaScript function targeting Safari-proprietary variable/property… if even possible.
I just had to make things never reaching the edge until somebody contributes something useful

Resizing the flash application dynamically...

Is it possible to change the size of the flash application so
it takes up more or less space? Mainly in the realm of making it
taller vs. shorter vertically, and thus the size of the webpage
that holds that flash application will also change. Generally, the
page that contains it will be of less size than the app itself and
thus the size of the page will depend on the app. Can one resize an
app and how so?

My research on the web leads me to believe it's not possible
to resize the flash application once it's loaded on the user's
browser. I found one page with a cheat that requires a ton of code
and counts as a kludge. There must be some other way though.

Resizing the JFrame equal Screen size

Dear Friends,
I have a problem in resizing the JFrame.
I am using the standard bounds for JFrame setBounds(0,0,800,600);
If the Screen size 1024*728 then JFrame will be visible a the corner of the screen.
I would like to resize by JFrame screen dynamically as per the System screen size.
Thanks in advance.
Regards
Pradeep.

use this :
jframe.setBounds(new Rectangle(Toolkit.getDefaultToolkit().getScreenSize()));

How to resize the columns of a table?

Hi there!
I want to resize the column of a JTable(constructed via AbstractTableModel) to
fit the exact width of the word in the header?
Can anyone tell me how to do this thing?
Regards,

import java.awt.*;
import javax.swing.table.*;
public class ColumnResizeDemo extends javax.swing.JFrame {
    public ColumnResizeDemo() {
        initComponents();
        TableColumn column = null;
        for (int i = 0; i < jTable1.getColumnModel().getColumnCount(); i++) {
            column = jTable1.getColumnModel().getColumn(i);
            String hv = column.getHeaderValue().toString();
            JTableHeader th = jTable1.getTableHeader();
            FontMetrics fm = th.getFontMetrics(th.getFont());
            column.setPreferredWidth(fm.stringWidth(hv)+5);
    private void initComponents() {
        jLabel1 = new javax.swing.JLabel();
        jScrollPane1 = new javax.swing.JScrollPane();
        jTable1 = new javax.swing.JTable();
        setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
        setTitle("Column Resize Demo");
        jLabel1.setText("Sets column width to fit exactly the corresponding header value");
        getContentPane().add(jLabel1, java.awt.BorderLayout.NORTH);
        jTable1.setModel(new javax.swing.table.DefaultTableModel(
                new Object [][] {
                    {null, null, null, null},
                    {null, null, null, null},
                    {null, null, null, null},
                    {null, null, null, null}
                new String [] {
            "Title 1", "Title 0002", "Title 0000003", "Title 00000000000004"
        jTable1.setAutoResizeMode(javax.swing.JTable.AUTO_RESIZE_OFF);
        jScrollPane1.setViewportView(jTable1);
        getContentPane().add(jScrollPane1, java.awt.BorderLayout.CENTER);
        pack();
    public static void main(String args[]) {
        new ColumnResizeDemo().setVisible(true);
    private javax.swing.JLabel jLabel1;
    private javax.swing.JScrollPane jScrollPane1;
    private javax.swing.JTable jTable1;
}

Generating the iFrame Dynamically

Hi Experts,
I need help in creating the iFrame dynamically. The following is the exact problem i am facing!
We have applications integrated in Portal using customized App integrator and with our own portal Layout defined.
The iframe that is generated in not dynamic with height and width.
if the integrted application is big then the height mentioned then we will get a double scrollbar.
If the fixed hight is set and when we navigate inside the application which is smaller than the fxied height then we get a big blank white page int he bottom.
So the only solution to fix this issue is to make the generated iframe dynamic.
Please guide me on how to do this!
Your inputs will be appreciated!
Thanks,
Srini.

Hi Srinivas,
Please refer to the following documents:
Blog:
Escaping the Procrustean bed
Forum:
Resize IFrame
Dynamic src of an IFRAME
Hope they are useful.
Regards,
Seema Rane.

Resizing the redo_buffer

Hi all,
This post is with regard to the performance issue which I am facing rite now.
When applications are running there is 'Wait Events' are showing, application also running very slow,
I here by list the statistics of my redo_buffer,
Redo Buffers 7135232 bytes
Redo Buffer Waits
3131
Redo Buffer Waits
41
NAME VALUE
redo synch writes 148,331
redo synch time 6,401
redo blocks read for recovery 1,410
redo entries 503,067
redo size 168,676,236
redo buffer allocation retries 13
redo wastage 20,239,188
redo writer latching time 57
redo writes 79,839
redo blocks written 381,764
redo write time 10,986
NAME VALUE
redo log space requests 41
redo log space wait time 3,131
redo log switch interrupts 0
redo ordering marks 15,649
redo subscn max counts 0
16 rows selected.
If I want to increase the size of redo_buffer shall I do it dynamically?
Could you please recomend the estimated size based on the statstics above?
I am using Oracle 10g.
Thanks & Cheers
Antony

I apologise for the wrong info actually the parameter can be changable but you have to make the changes in the pfile.
Then you can have to bounce the database, but which alter system command it wont work.
If you want to resize the parameter then you should give all the other parameter like, buffer cache, large pool, shared pool and everything you have to maintain manually.
Instead of that if you are using 10g then give the parameter sga_target which will take care of everything.
SQL> show parameter spfile
NAME TYPE VALUE
spfile string /opt/app/oracle/app/oracle/pro
duct/10.1.0/db_1/dbs/spfiledba
1.ora
SQL> alter system set log_buffer = 1m scope=spfile;
alter system set log_buffer = 1m scope=spfile
ERROR at line 1:
ORA-02095: specified initialization parameter cannot be modified

Resize the CentOS LVM inside VM from a secondary virtual hard disk

Requirement:
Airwave installed on a VM, with a secondary virtual hard disk.
we have a KB "Resizing the centOS LVM inside VM", is only useful if we have one hard disk for that VM instance.
https://arubanetworkskb.secure.force.com/pkb/articles/FAQ/Resizing-CentOS-LVM-inside-VM
However, This KB will be helpful in the scenario's where VM Administrators has to create a secondary virtual Hard disk, instead of increasing the disk space for current hard disk (could be for any reason for example: he cannot increase the disk space for the same disk as the pool that provides space to that disk has no space etc..).
Solution:
In this case, when we have added a secondary virtual hard disk, when we do # fdisk -l, we will see the secondary disk as /dev/sdb as shown below:
[root@localhost mercury]# fdisk -l
Disk /dev/sda: 42.9 GB, 42949672960 bytes
255 heads, 63 sectors/track, 5221 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x000650f3
   Device Boot      Start         End      Blocks   Id System
/dev/sda1   *           1          13      102400   83 Linux
Partition 1 does not end on cylinder boundary.
/dev/sda2              13        5222    41839616   8e Linux LVM
Disk /dev/sdb: 17.2 GB, 17179869184 bytes
255 heads, 63 sectors/track, 2088 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000
Disk /dev/mapper/VolGroup00-LogVol01: 4294 MB, 4294967296 bytes
255 heads, 63 sectors/track, 522 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000
Disk /dev/mapper/VolGroup00-LogVol00: 38.5 GB, 38520487936 bytes
255 heads, 63 sectors/track, 4683 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000
And this is the # df -h, command output, before the LVM extension:
[root@localhost mercury]# df -h
Filesystem            Size Used Avail Use% Mounted on
/dev/mapper/VolGroup00-LogVol00
                       36G   11G   23G 32% /
tmpfs                 3.7G     0 3.7G   0% /dev/shm
/dev/sda1              97M   37M   56M 40% /boot
We need to extend the sdb disk space to VG group to combine to use the disk space as shown below in the configuration:
Configuration:
1. First, we need to create a partition in /dev/sdb
[root@localhost mercury]# fdisk /dev/sdb
# n {new partition}
# p {primary partition}
# 1 {select partition number, by default 3 is the next available}
# use the default cylinder values for First and last
# t {select partition id we just made (1)}
# 8e {Linux LVM partition}
# p {print. the new device should be described as Linux LVM}
# w {write to memory}
2. We need pv reate /dev/sdb1:
[root@localhost mercury]# pvcreate /dev/sdb1
3. Execute the command to extend the VG to sdb1:
[root@localhost mercury]# vgextend VolGroup00 /dev/sdb1
4. Enter the command to extend the LV to sdb1:
[root@localhost mercury]# lvextend /dev/VolGroup00/LogVol00 /dev/sdb1
5. Resize the VG:
[root@localhost mercury]# resize2fs /dev/VolGroup00/LogVol00
Done.
Verification
Now look at the # df -h, output, which will be different:
[root@localhost mercury]# df -h
Filesystem            Size Used Avail Use% Mounted on
/dev/mapper/VolGroup00-LogVol00
                       52G   11G   38G 22% /
tmpfs                 3.7G     0 3.7G   0% /dev/shm
/dev/sda1              97M   37M   56M 40% /boot

Hi Eric,
"My first thought was to do is reduce the drive, which I know cannot be done. I then thought to convert the disk but it consumes the whole of the dynamic potential, which somehow is a maximum of 2TB."
Yes , we can not get the disk space less than 2TB .
As a workaround , you can try the following steps :
1) defrag the volume  in VM , after that shutdown the VM
2) use "edit disk" in hyper-v manager to compact the VHD file
3) start that VM then shrink the volume that the disk space is larger than the VM needs in disk manager
This may limits the expansion accordingly .
Hope it helps
Best Regards
Elton JI
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I am using a doc formatted on excel --- how do i resize the doc to fit on one page?

I am using a document that was formatted in excel (on a PC) --- how do i resize the document to print on one page?

Hi phylw,
Here is one way. View > Show Print View. At the bottom of the window is a slider control called Content Scale. Slide to the left to shrink the document.
Under File > Print... you will see a print preview that tells you how many pages the document now occupies.
Regards,
Ian.

How to translate the text dynamically in the program?

Hi All,
I have a requirement where I need to translate the text dynamically in the program based on the Language Key retrieved.
Let's say that the Login language is 'EN' and in the logic has retrieved the language 'IT'(based on some conditions). I have to transate the text(which is maintained using the text elements) to ITALIAN(IT) Language and send the same as an email.
Could you please tell me if any Function Module is available in SAP which translates the text Dynamically in the program. or is there any other way to translate the text dynamically in the program.
Could you please share your valuable inputs? Thank you in advance.
Thanks & regards,
Paddu.

you could use SET LOCALE LANGUAGE myLanguage - so you can switch to the desired language and all texts will selected from that language.

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Hi Experts,
I need to print the data dynamically in different windows on the same page.For example in the first window 25 records,2nd window 25 records and 3rd window 25 records.I need it dynamically.How to achieve this?

Hi,
If you have an internal table which fetches the data... Then you can have table in each window and in the data tab give from row and to row values to display how many records and from where to where you want to display.
Regards,
-Sandeep

I resized the window to 150% and now I can't get it back to 100% view and keep it that size. How do I get it back to the right size?

I resized the adobe window to 150% and now I can't get it back to the 100% size and keep it that size. How do I get the original 100% back and keep it that size?

Hi Linda,
To control the page zoom option you can also go to Edit> Preferences> Page Display.
Regards,
Rave

How to change the image dynamically depend upon the input parameter

Hi All
I have one report running depend upon the Organization specific, I have 15 operating unit and 15 different logo for each operating unit.
How to change the Logo dynamically depend upon the input passed by the user.
If I have three or four logo i can add in my layout using if else statement and its works fine but i have more that 10 logos so its no possible to keep these in My RTF Template.
Is it possible to change the logo according to the input without keeping this in Template.
I have seen this link but its not working fine
http://erpschools.com/articles/display-and-change-images-dynamically-in-xml-publisher
Regards
Srikkanth.M

Hi,
I have not completed fully,so sorry i cant able to share the files, could you please give me some tips and steps to do.
Without having the logo in RTF if it possible to bring the logo depends on the user input (Ie Operating unit).
Regards
Srikkanth

Regarding resizing the JLabel dynamically

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