How to add seprator to ScrollBar in JScrollPane?

I have a JScrollPane. I am trying to add border to ScrollBar so ScrollBar looks seprate from pane.
Is there anyother way to do this so ScrollBar look seprate from scrollPane?? thanks in advance!!!
thanks
amit

Border b = ...; // your border here
UIManager.put( "ScrollBar.border", b);http://www.gargoylesoftware.com/papers/plafdiff/ScrollBar.html

Similar Messages

How to add Seprator inJPanel

sir
I want to add seprator in a panel which have buttons.
but it does not work how can i do?
the code is following
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import javax.swing.border.*;
public class MyButtonPanel2 extends JPanel
ImageIcon icon=new ImageIcon("images/mainbut/new.jpg");
JSeparator seprator=new JSeparator(SwingConstants.HORIZONTAL);
JButtonmy New=new JButtonmy(icon,new ImageIcon("images/mainbut/new1.jpg"));
JButtonmy view=new JButtonmy(new ImageIcon("images/mainbut/view.jpg"),new ImageIcon("images/mainbut/view1.jpg"));
MyButtonPanel2()
setOpaque(false);
setBackground(new Color(247,223,204));
int iconw=icon.getIconWidth();
int iconh=icon.getIconHeight();
setMinimumSize(new Dimension((iconw*7)+20,iconh+2));
setPreferredSize(new Dimension((iconw*7)+10,iconh+2));
setBorder(new EtchedBorder(EtchedBorder.RAISED));
setLayout(new FlowLayout(FlowLayout.LEFT,0,0));
seprator.setBackground(Color.red);
seprator.setSize(2,iconh+2);
add(view);add(seprator);add(New);add(seprator);
thanks in advance

hi razajavaboy
try to solve your problem following way :
public class DemoSeparator extends javax.swing.JFrame {
public DemoSeparator() {
jButton1 = new javax.swing.JButton();
jSeparator1 = new javax.swing.JSeparator();
getContentPane().setLayout(null);
addWindowListener(new java.awt.event.WindowAdapter() {
public void windowClosing(java.awt.event.WindowEvent evt) {
exitForm(evt);
jButton1.setText("Click me to move the above line to below");
jButton1.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jButton1ActionPerformed(evt);
getContentPane().add(jButton1);
jButton1.setBounds(60, 100, 263, 26);
getContentPane().add(jSeparator1);
jSeparator1.setBounds(60, 81, 100, 2);
setSize(500,200);
private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {
if(jButton1.getText().endsWith("below")){
jSeparator1.setBounds(60, 150, 100, 2);
jButton1.setText("Click me to move the below line to above");
else{
jSeparator1.setBounds(60, 80, 100, 2);
jButton1.setText("Click me to move the above line to below");
private void exitForm(java.awt.event.WindowEvent evt) {
System.exit(0);
public static void main(String args[]) {
new DemoSeparator().show();
private javax.swing.JButton jButton1;
private javax.swing.JSeparator jSeparator1;
Darshan

How to add a vertical scrollbar?

Been searching FOREVER now!
How do I make a Tabbed panel with a fixed size, and then content is scrollable in vertical direction?
like this site: Sigurd Rakel | Bilder
Or inside a composition for that matter?

There is a way of doing this using an iFrame. It’s not particularly elegant but it does work. The only caveat is you wouldn't be able to have the lightbox effect shown in the site you referenced, as it would appear within the panel's frame, rather than on the main page.
Create your tabbed panel on the page. Make a note of the content area’s width.
Now you need to create a new page for the content you want to display in the tab. I’ve created a Master page for this, as it will let you quickly create new content at with the correct settings.
Open the Master's Page Properties. Set the page width to the width of the panel content area. Remove all padding and margins.
Open the new master. Remove the header and footer padding.
Go back to the Plan view. Create a new page based on the new master page. Also remember to remove the page from the menus!
Add your content so it fits the width of the page.
Go back to the page with the tabbed panel. Select Insert HTML from the Object Menu. Add this line of code (substituting the page name and panel dimensions for your own): <iframe src="panel-text.html" width="480" height="510" frameBorder=0 />.
Position and resize the HTML frame inside the panel. The content won’t show in the frame as it’s referencing a page that’s yet to be rendered. You might also want to adjust the panel size to suit.
Select Preview Site in Browser from the File Menu. All being well, you should see the content inside the panel, which will scroll independently.
I hope this helps.
David

How do you add a Vertical scrollbar to a JTextArea?

How do you add a Vertical scrollbar to a JTextArea? This is what I've tried so far but it hasn't worked. I got that off of someone asking a similiar question here.
aTextArea = new JTextArea(10, 40);
JScrollPane scrollPane = new JScrollPane(aTextArea);
aTextArea.setText( " " );

JScrollPane(component)
this constructor will only show the scrollbar (vertical and/or horizontal) as needed..so, if the scrollpane viewport is larger than the component, then it will not show the scrollbar.
you can force the scrollbar to alway show
setHorizontalScrollBarPolicy(int policy)
setVerticalScrollBarPolicy(int policy)

How to add Panel in JScrollPane? URGENT!

I need to add a Panel in JScrollPane
I have try to add JPanel into JScrollPane, but apparently, the JPanel did not show up at all in the JScrollPane (all i see is the border of JScrollPane)
Then I switch my JPanel to Panel (awt) and it does appear on the JScrollPane, but scrollbars are not visible even i have set the size of the panel is larger than the JScrollPane. (and i also set the VERTICAL_SCROLLBARS_ALWAYS) I can scroll with my mousewhieel, but the panel can scroll out of place(ie outside of the Jscrollpane)
Can someone teach me how to add a Panel or JPanel to a JScrollPane Please~ Thanks!!!

here is an example that illustrate my problem:
import java.io.*;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.border.*;
import javax.swing.filechooser.*;
public class testing extends JFrame
     public testing()
          Container pane=getContentPane();
          pane.setLayout(null);
          setSize(600,600);
          JPanel backgroundpanel= new JPanel();
          backgroundpanel.setLayout(null);
          backgroundpanel.setSize(500,500);
          backgroundpanel.setLocation(0,0);
          Panel insidepanel = new Panel();
          insidepanel.setLayout(null);
          insidepanel.setSize(300,300);
          insidepanel.setLocation(0,0);
          JLabel something= new JLabel("something");
          JTextField someTF= new JTextField(10);
          something.setSize(100,20);
          something.setLocation (20,20);
          someTF.setSize(100,20);
          someTF.setLocation(50,60);
          insidepanel.add(something);
          insidepanel.add(someTF);
          JScrollPane scrollpane= new JScrollPane(insidepanel, JScrollPane.VERTICAL_SCROLLBAR_ALWAYS,JScrollPane.HORIZONTAL_SCROLLBAR_ALWAYS );
          scrollpane.setSize(200,200);
          scrollpane.setLocation(10,10);
          backgroundpanel.add(scrollpane);
          pane.add(backgroundpanel);
          setVisible(true);
          setDefaultCloseOperation(EXIT_ON_CLOSE);
     public static void main(String args[]) throws FileNotFoundException, IOException
                    testing test=new testing();
apparently, the panel i add in teh scrollpane is on the top layer instead of inside the scroll... can anyone help?

How to add vertical scrollbar to a tree region

Hi,
I have a page containing two regions. The first is a tree region displayed on the left hand side of the page. The second is form region displayed to the right of the tree, showing details relating to the selected node from the tree.
How can I add a vertical scrollbar to the tree, so that I can I browse all nodes in the tree without affecting the position of the form? Currently, if my tree extends beyond the height of the page I have to use the page vertical scrollbar to view the bottom of the tree. This obviously means that the form is no longer in view.
Thanks
Andrew.

Hi Andrew,
You can't add a scrollbar directly to the region's contents, but you can wrap the contents within a DIV tag.
In the Region Header add in:
<DIV style="height:500px; overflow:auto">
In the Region Footer add in:
</DIV>
Obviously, change the height value to suit your needs.
Regards
Andy

How to add scrollbar to jpanel

i created a jpanel with images & related text to images, which repaints dynamically according to width,now i wann to add a vertical scrollbar to it.
plz..help me

iam getting scrollbar but iam unable to get scrolling when i change the size
my code like this....
//here iam using jpanel to get images and text
public class ImgNtext extends JPanel {
   public ImgNtext(){
       //to intialize values
       init_values();
public void init_values{
   //In these init_values iam decalaring imageFile name & text using hashtable
   public void paintComponent(Graphics g) {
         super.paintComponent(g);
         //getting width of screen
         int gw = getWidth();
         //then iam retriving all the values using while loop
         while(i.hasMoreElements())
                    //accroding to width iam painting the components
                      if(gw<100){
                           g.drawImage(image,x,y,null);
                           g.drawString(string,x,y+80);
                           gw -=100;
                           x += 100;
                     else{
                           y += 100;
                           gw = getWidth();
public class ImagePanel
       ImgNtext it = new ImgNtext();
       JScrollPane sp;
       public ImagePanel() {
                 JFrame jf = new JFrame();
                 jf.setSize(1000,1000);
                 scp = new                JScrollPane(it,JScrollPane.VERTICAL_SCROLLBAR_ALWAYS,JScrollPane.HORIZONTAL_SCROLLBAR_NEVER);
                 jf.getContentPane().add(scp);
                 jf.setVisible(true);
          public static void main(String s[]){
               ImagePanel img = new ImagePanel();
}

How to add scrollbar to jpopup menu

Hi everyone,
Do u know how to add a scrollbar to jpopup menu ?

Menus don't scroll, and shouldn't scroll. Given that, you shouldn't try and use JPopupMenu at all... rather, create your own component that implements the look and behavior you want. It will be far easier and less frustrating.
Either that... or you should re-think what functionality you are trying to provide, and how you are trying to implement it. A scrolling menu just seems like a counterintuitive wacky UI design to me.

How to add scrollbar to the JInternal Frame

How to add scrollbar to JInternal Frame?
I have One JInternal frame i want it should have a scrollbar when we reduces its size.

[url http://java.sun.com/docs/books/tutorial/uiswing/components/scrollpane.html]How to Use Scroll Panes

How to add scroll bar to JDesktopPane?

Hi All,
After download the "InternalFrameDemo.java" from the swing tutorial, I want to add scrollbars to JDesktopPane so that whenever a internal frame moves off the desktop view port, a scrollbar will display. I have tried many ways to implement this but no success.
Do you know how to add scrollbars to JDesktopPane?
Thanks
Anson

You can't get there from here! Assuming that wou want is to make the desktop scrollable that is.
The trick to make somthing scrollable is to make JScrollPane CONTAIN the component to be scrolled. If you could ask the desktop to return the component it contains, you might have a chance but no luck, the desktop pane actually inherits a layered pane which is most likey is what you would like JScrollPane to contain.
Now here's another angle to this story... the desktop is complex enough without scrollbars, why would you want to complicate things by adding a scroll bar anyway? Say one of its window is maximized and has a scrollbar of its own AND the desktop has one.... that makes TWO scroll bars side by side. Talk about confusing.
I believe the desktop was designed so scroll bars can't be added for a very good reason: good UI practises.

How to make vertical-only scrollBar?

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.JScrollPane.*;
class showConsole2{
public static void main(String argv[])throws Throwable{
consoleFrame csf = new consoleFrame();
csf.show();
class consoleFrame extends JFrame{
public consoleFrame()throws Throwable{
super("Console"); setSize(150, 200);
JPanel p1, p2, p3, p4, p5, p6, content ;
p1 = new JPanel(); p2 = new JPanel();
p3 = new JPanel(); p4 = new JPanel();
p5 = new JPanel(); p6 = new JPanel();
content = new JPanel();
JLabel l1, l2, l3, l4, l5, l6;
l1 = new JLabel("aaaaaaaaaaaaaaaaaaaaaaa");
l2 = new JLabel("aaaaaaaaaaaaaaaaaaaaaaa");
l3 = new JLabel("aaaaaaaaaaaaaaaaaaaaaaa");
l4 = new JLabel("aaaaaaaaaaaaaaaaaaaaaaa");
l5 = new JLabel("aaaaaaaaaaaaaaaaaaaaaaa");
l6 = new JLabel("aaaaaaaaaaaaaaaaaaaaaaa");
p1.add(l1); p2.add(l2); p3.add(l3);
p4.add(l4); p5.add(l5); p6.add(l6);
content.add(p1); content.add(p2); content.add(p3);
content.add(p4); content.add(p5); content.add(p6);
setContentPane(content);
//how to modify the codes in this program to make
//the vertical-only scrollbar?

Try this. I believe this is what you were asking. If not, let me know...
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.JScrollPane.*;
class test
     public static void main(String argv[])
          consoleFrame csf = new consoleFrame();
          csf.setVisible(true);
class consoleFrame extends JFrame
     public consoleFrame()
          super("Console");
          setSize(150, 200);
          JPanel p1 = new JPanel();
          JPanel p2 = new JPanel();
          JPanel p3 = new JPanel();
          JPanel p4 = new JPanel();
          JPanel p5 = new JPanel();
          JPanel p6 = new JPanel();
          JLabel l1 = new JLabel("aaaaaaaaaaaaaaaaaaaaaaa");
          JLabel l2 = new JLabel("aaaaaaaaaaaaaaaaaaaaaaa");
          JLabel l3 = new JLabel("aaaaaaaaaaaaaaaaaaaaaaa");
          JLabel l4 = new JLabel("aaaaaaaaaaaaaaaaaaaaaaa");
          JLabel l5 = new JLabel("aaaaaaaaaaaaaaaaaaaaaaa");
          JLabel l6 = new JLabel("aaaaaaaaaaaaaaaaaaaaaaa");
          p1.add(l1);
          p2.add(l2);
          p3.add(l3);
          p4.add(l4);
          p5.add(l5);
          p6.add(l6);
          JPanel content = new JPanel();
          content.setLayout(new GridLayout(6,1));
          content.add(p1);
          content.add(p2);
          content.add(p3);
          content.add(p4);
          content.add(p5);
          content.add(p6);
          // how to modify the codes in this program to make
          // the vertical-only scrollbar?
          JScrollPane jsp = new JScrollPane();
          jsp.setHorizontalScrollBarPolicy(JScrollPane.HORIZONTAL_SCROLLBAR_NEVER);
          jsp.setSize(200, 100);
          JViewport view = new JViewport();
          view.setView(content);
          jsp.setViewport(view);
          this.getContentPane().add(jsp, BorderLayout.CENTER);
          this.setSize(200, 100);
}

How to add a table(from TableRenderDemo) to a JFrame again

Hello again:
Thanks for stephen andrews's adivice, I follow your adivice to add code (it is in
EventHandeler of DrawCalendar class, and they indicated by ???????????), but it still not work, please check for me why, Thanks.
My problem
Please run my coding first, and get some view from my coding.
At the movement, I got a problem, I have not idea how to add a table(it is from TableRenderDemo) to JFrame when I click on the button(from DrawCalendar) of the numer 20, and I want the table disply under the buttons(from DrawCalendar).
Please help me to solve this problem, thanks.
*This program for add some buttons and a table on JFrame
import java.awt.*;
import javax.swing.*;public class TestMain extends JFrame{
private static TableRenderDemo tRD;
private static TestMain tM;
protected static Container c;
private static DrawCalendar dC;
public static void main(String[] args){
tM = new TestMain();
tM.setVisible(true);
     public TestMain(){
     super(" Test");
     setSize(800,600);
//set up layoutManager
c=getContentPane();
c.setLayout ( new GridLayout(3,1));
tRD=new TableRenderDemo();
dC=new DrawCalendar();
addItems();//add Buttons to JFrame
private void addItems(){
     c.add(dC); //add Buttons to JFrame
     //c.add(tRD); //add Table to JFrame
*This program for add some buttons to JPanel
*and add listeners to each button
*I want to display myTable under the buttons,
*when I click on number 20, but why it doesn't
*work, The coding for these part are indicated by ??????????????
[import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.awt.GridLayout;
public class DrawCalendar extends JPanel {
     private static DrawCalendar dC;
     private static TestMain tM;
     private static TableRenderDemo myTable;
     private static GridLayout gL;
     private static final int nlen = 35;
    private static String names[] = new String[nlen];
private static JButton buttons[] = new JButton[nlen];
     public DrawCalendar(){
          gL=new GridLayout(5,7,0,0);
          setLayout(gL);
          assignValues();
          addJButton();
          registerListener();
//assign values to each button
     private void assignValues(){
          names = new String[35];
     for(int i = 0; i < names.length; i++)
     names[i] = Integer.toString(i + 1);
//create buttons and add them to Jpanel
private void addJButton(){
     buttons=new JButton[names.length];
     for (int i=0; i<names.length; i++){
     buttons=new JButton(names[i]);
     buttons[i].setBorder(null);
     buttons[i].setBackground(Color.white);
     buttons[i].setFont(new Font ("Palatino", 0,8));
add(buttons[i]);
//add listeners to each button
private void registerListener(){
     for(int i=0; i<35; i++)
          buttons[i].addActionListener(new EventHandler());
//I want to display myTable under the buttons,
//when I click on number 20, but why it doesn't
//work
private class EventHandler implements ActionListener{
     public void actionPerformed(ActionEvent e){
     for(int i=0; i<35; i++){
     if(i==20){                  //????????????????????
          tM=new TestMain(); //I want to display myTable under the buttons,
          tM.c.removeAll(); //when I click on number 20, but why it doesn't
          tM.c.add(dC); //work
          tM.c.add(myTable); //???????????????????????????????????????
          tM.validate();
     if(e.getSource()==buttons[i]){
     System.out.println("testing " + names[i]);
     break;
*This program create a table with some data
[import javax.swing.table.AbstractTableModel;
import javax.swing.table.TableColumn;
import javax.swing.DefaultCellEditor;
import javax.swing.table.TableCellRenderer;
import javax.swing.table.DefaultTableCellRenderer;
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
public class TableRenderDemo extends JScrollPane {
    private boolean DEBUG = true;
    public TableRenderDemo() {
      // super("TableRenderDemo");
        MyTableModel myModel = new MyTableModel();
        JTable table = new JTable(myModel);
        table.setPreferredScrollableViewportSize(new Dimension(700, 70));//500,70
         //Create the scroll pane and add the table to it.
         setViewportView(table);
        //Set up column sizes.
        initColumnSizes(table, myModel);
        //Fiddle with the Sport column's cell editors/renderers.
        setUpSportColumn(table.getColumnModel().getColumn(2));
* This method picks good column sizes.
* If all column heads are wider than the column's cells'
* contents, then you can just use column.sizeWidthToFit().
private void initColumnSizes(JTable table, MyTableModel model) {
TableColumn column = null;
Component comp = null;
int headerWidth = 0;
int cellWidth = 0;
Object[] longValues = model.longValues;
for (int i = 0; i < 5; i++) {
column = table.getColumnModel().getColumn(i);
try {
comp = column.getHeaderRenderer().
getTableCellRendererComponent(
null, column.getHeaderValue(),
false, false, 0, 0);
headerWidth = comp.getPreferredSize().width;
} catch (NullPointerException e) {
System.err.println("Null pointer exception!");
System.err.println(" getHeaderRenderer returns null in 1.3.");
System.err.println(" The replacement is getDefaultRenderer.");
comp = table.getDefaultRenderer(model.getColumnClass(i)).
getTableCellRendererComponent(
table, longValues[i],
false, false, 0, i);
cellWidth = comp.getPreferredSize().width;
if (DEBUG) {
System.out.println("Initializing width of column "
+ i + ". "
+ "headerWidth = " + headerWidth
+ "; cellWidth = " + cellWidth);
//XXX: Before Swing 1.1 Beta 2, use setMinWidth instead.
column.setPreferredWidth(Math.max(headerWidth, cellWidth));
public void setUpSportColumn(TableColumn sportColumn) {
//Set up the editor for the sport cells.
JComboBox comboBox = new JComboBox();
comboBox.addItem("Snowboarding");
comboBox.addItem("Rowing");
comboBox.addItem("Chasing toddlers");
comboBox.addItem("Speed reading");
comboBox.addItem("Teaching high school");
comboBox.addItem("None");
sportColumn.setCellEditor(new DefaultCellEditor(comboBox));
//Set up tool tips for the sport cells.
DefaultTableCellRenderer renderer =
new DefaultTableCellRenderer();
renderer.setToolTipText("Click for combo box");
sportColumn.setCellRenderer(renderer);
//Set up tool tip for the sport column header.
TableCellRenderer headerRenderer = sportColumn.getHeaderRenderer();
if (headerRenderer instanceof DefaultTableCellRenderer) {
((DefaultTableCellRenderer)headerRenderer).setToolTipText(
"Click the sport to see a list of choices");
class MyTableModel extends AbstractTableModel {
final String[] columnNames = {"First Name",
"Last Name",
"Sport",
"# of Years",
"Vegetarian"};
final Object[][] data = {
{"Mary ", "Campione",
"Snowboarding", new Integer(5), new Boolean(false)},
{"Alison", "Huml",
"Rowing", new Integer(3), new Boolean(true)},
{"Kathy", "Walrath",
"Chasing toddlers", new Integer(2), new Boolean(false)},
{"Sharon", "Zakhour",
"Speed reading", new Integer(20), new Boolean(true)},
{"Angela", "Lih",
"Teaching high school", new Integer(4), new Boolean(false)}
public final Object[] longValues = {"Angela", "Andrews",
"Teaching high school",
new Integer(20), Boolean.TRUE};
public int getColumnCount() {
return columnNames.length;
public int getRowCount() {
return data.length;
public String getColumnName(int col) {
return columnNames[col];
public Object getValueAt(int row, int col) {
return data[row][col];
* JTable uses this method to determine the default renderer/
* editor for each cell. If we didn't implement this method,
* then the last column would contain text ("true"/"false"),
* rather than a check box.
public Class getColumnClass(int c) {
return getValueAt(0, c).getClass();
* Don't need to implement this method unless your table's
* editable.
public boolean isCellEditable(int row, int col) {
//Note that the data/cell address is constant,
//no matter where the cell appears onscreen.
if (col < 2) {
return false;
} else {
return true;
* Don't need to implement this method unless your table's
* data can change.
public void setValueAt(Object value, int row, int col) {
if (DEBUG) {
System.out.println("Setting value at " + row + "," + col
+ " to " + value
+ " (an instance of "
+ value.getClass() + ")");
if (data[0][col] instanceof Integer
&& !(value instanceof Integer)) {
//With JFC/Swing 1.1 and JDK 1.2, we need to create
//an Integer from the value; otherwise, the column
//switches to contain Strings. Starting with v 1.3,
//the table automatically converts value to an Integer,
//so you only need the code in the 'else' part of this
//'if' block.
try {
data[row][col] = new Integer(value.toString());
fireTableCellUpdated(row, col);
} catch (NumberFormatException e) {
JOptionPane.showMessageDialog(TableRenderDemo.this,
"The \"" + getColumnName(col)
+ "\" column accepts only integer values.");
} else {
data[row][col] = value;
fireTableCellUpdated(row, col);
if (DEBUG) {
System.out.println("New value of data:");
printDebugData();
private void printDebugData() {
int numRows = getRowCount();
int numCols = getColumnCount();
for (int i=0; i < numRows; i++) {
System.out.print(" row " + i + ":");
for (int j=0; j < numCols; j++) {
System.out.print(" " + data[i][j]);
System.out.println();
System.out.println("--------------------------");

http://forum.java.sun.com/faq.jsp#format

How to add the new line in reciever FCC

Hi All,
I have my reciever FCC with me, but I just need to add one more additional line or you can say seprate the first line.
So how to add extra or new line in the current structure?
Please let me know if there is any parameter for this.
Thanks in advance.
Regards,
Rahul Kulkarni

Hi Rahul,
You can achieve this by endseperatot "nl"
If record set structure is * means fine, you just add second line field names by using end separator "nl".
If you added first line names in recordsetstructure add second line names as well and remaining same use end separator.
Example (below file is having two lines):
<NameA>
name,address,id
empid,sal,region
<NameA/>
your FCC will be (according to your requirement the below 3 fileds will be use full).
Recordsetstructure - *
NameA.fieldvalues - name,address,id
NameA.endseperator - nl
NameA.fieldvalues - empid,sal,region
Thanks & Regards,
A.Neelima.

How to add contents of an arrayList to a JList

Hi,
I am trying to figure out how to add the contents of an arraylist to a Jlist.
Basically I have 3 classes which are as follow:
1. AuctionItems(String name, int bid) which represents an item in auction
2. AuctionItemsFactory which creates AuctionItems and adds them to an arraylist called stock
3. AuctionBidsGui1 which is the interface where the user can see the items in the auction and select them from a JList.
But I dont know how to read the contents of the stock(arraylist) into the JList which is in AuctionBidsGui1. Below are the 3 classes mentioned above
public class AuctionItems {
     String name;
     int bid;
     public AuctionItems(){
          name = null;
          bid = 0;
     public AuctionItems(String name, int bid){
          this.name = name;
          this.bid = bid;
     public String getName(){
          return name;
     public int getBid() {
          return bid;
public class AuctionItemsFactory {
     private ArrayList<AuctionItems> stock;
     int size;
     public AuctionItemsFactory() {
          stock = new ArrayList<AuctionItems>();
     public void addItems(AuctionItems item) {
          stock.add(item);
//removes last element of the arrayList
     public void removeItems() {
          int n = stock.size() - 1;
          stock.remove(n);
     public void printNumOfItems() {
          int n = stock.size();
          System.out.println(n);
     public int numberOfItems(){
          return stock.size();
     public void printItems(){
          for (AuctionItems item : stock) System.out.println(item);
and this one is a small part of the AuctionBidsGui1 class which represents the JList where the list of the items will go.
public void addItemListWidgets() {
          itemsList = new JList();
          itemsList.setSelectionMode(ListSelectionModel.MULTIPLE_INTERVAL_SELECTION);
          itemsList.setLayoutOrientation(JList.VERTICAL);
          itemsList.setVisibleRowCount(10);
          itemsList.setSelectedIndex(0);
          JScrollPane itemsListScroller = new JScrollPane(itemsList); // put the list in the scroller
          itemsListScroller.setVerticalScrollBarPolicy(ScrollPaneConstants.VERTICAL_SCROLLBAR_ALWAYS);
          itemsListScroller.setHorizontalScrollBarPolicy(ScrollPaneConstants.HORIZONTAL_SCROLLBAR_NEVER);
          itemsListPanel.add(itemsListScroller);
     }

I know that I have to use the toArray() but i dont know what type of method to use for this because i will need to implement a method in my AuctionItemsFactory class which will copy the contents of the arraylist into an array so then i can call this methos from my AuctionBidGui1 class.
I would appreciate if you could give me a bit more hints.

How to add a scroll bar within a view window ?I want to display x and y axis outside the scoll window and keep those axis static and move the graph within scroll area

how to add a scroll bar within a view window ?I want to display x and y axis outside the scoll window and keep those axis static and move the graph within scroll area
ananya

Hey Ananya,
I believe what you want to do is possible, but it will not be
easy. If you want to add a scroll bar that will scroll the graph
back and forth but keep the axis set, you would want to add a
horizontal or vertical scrollbar. Then you would create an event
handler for the scroll event. You would have to manually plot
different data within this scroll event. Unfortunately, there is
not really a built in way to do this with the Measurement Studio plot
control.
Thanks,
Pat P.
Software Engineer
National Instruments

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