AWT repaint() not Working

The Cdoe Given Below is not responding to the action of okBtn
It removes the center1Panel
but does not adds or repaints the added center2Panel
Wher am I wrong?
Help Me
import java.awt.BorderLayout;
import java.awt.Button;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.Frame;
import java.awt.Panel;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
public class ExamFrame extends Frame implements ActionListener{
     Button okBtn= new Button("OK");
     Panel mainPanel = new Panel();
     Panel southPanel = new Panel();
     Panel northPanel = new Panel();
     Panel centerPanel = new Panel();
     Panel center1Panel = new Panel();
     Panel center2Panel;
     public ExamFrame() {
          super("Exam");
          setBackground(Color.gray);
          southPanel.add(okBtn);
          mainPanel.setLayout(new BorderLayout());
          mainPanel.add(southPanel,BorderLayout.SOUTH);
          mainPanel.add(northPanel,BorderLayout.NORTH);
          mainPanel.add(centerPanel,BorderLayout.CENTER);
          centerPanel.setPreferredSize(new Dimension(400,600));
          southPanel.setBackground(Color.red);
          center1Panel.setBackground(Color.blue);
          center1Panel.setPreferredSize(new Dimension(400,600));
          center2Panel = new Panel();
          center2Panel.setBackground(Color.green);
          center2Panel.setPreferredSize(new Dimension(400,600));
          centerPanel.add(center1Panel);
          centerPanel.add(center2Panel);
          okBtn.addActionListener(this);
          add(mainPanel);
          this.addWindowListener(new WindowAdapter() {
               public void windowClosing(WindowEvent e) {
                    System.exit(0);
     public void actionPerformed(ActionEvent ae) {
          // TODO Auto-generated method stub
          if(ae.getSource()==okBtn){
               centerPanel.removeAll();
               repaint();
               center2Panel= new Panel();
               center2Panel.setBackground(Color.green);
               center2Panel.setPreferredSize(new Dimension(400,600));
               centerPanel.add(center2Panel);
               centerPanel.repaint();
               repaint();
     public static void main(String[] args) {
          // TODO Auto-generated method stub
          ExamFrame frame= new ExamFrame();
          frame.setSize(new Dimension(600,400));
          frame.setVisible(true);
}

You need to usecenterPanel.validate();instead ofcenterPanel.repaint();db

Similar Messages

Traffic light repaint not working via button

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package test2; 
 
import java.awt.event.ActionEvent; 
import java.awt.event.ActionListener; 
import javax.swing.JButton; 
import javax.swing.JOptionPane; 
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public class Traffic_Lights extends JPanel implements ActionListener { 
 
private Light_Controller LightController; 
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/** 
* This method traps the button click events 
*/ 
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package test2; 
import java.awt.*; 
import java.awt.geom.Rectangle2D; 
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public class Light_Controller extends JPanel { 
 
private int lightState = 1; 
 
 
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} 
 
this.repaint(); 
 
} 
 
/** 
* This method draws the traffic light on the screen 
*/ 
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super.paintComponent(g); 
 
Graphics2D g1 = (Graphics2D) g; 
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g.setColor(new Color(0,0,0)); 
g.fillRoundRect(50,30,90,195,30,30); 
g.drawRoundRect(35,15,120,225,30,30); 
 
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g.setColor(new Color(100,0,0)); 
g.fillOval(70,40,50,50); 
 
// YELLOW dim 
g.setColor(new Color(100,100,0)); 
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g.setColor(new Color(0,100,0)); 
g.fillOval(70,160,50,50); 
 
// Draw traffic light stand 
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switch(lightState) { 
case 1: 
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g.setColor(new Color(255, 0, 0)); 
g.fillOval(70, 40, 50, 50); 
g1.fill(new Rectangle2D.Double(440, 450, 60, 5)); 
g1.fill(new Rectangle2D.Double(350, 240, 60, 5)); 
g1.fill(new Rectangle2D.Double(345, 360, 5, 80)); 
g1.fill(new Rectangle2D.Double(500, 250, 5, 90)); 
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g.setColor(new Color(255, 255, 0)); 
g.fillOval(70, 100, 50, 50); 
g1.fill(new Rectangle2D.Double(440, 450, 60, 5)); 
g1.fill(new Rectangle2D.Double(350, 240, 60, 5)); 
g1.fill(new Rectangle2D.Double(345, 360, 5, 80)); 
g1.fill(new Rectangle2D.Double(500, 250, 5, 90)); 
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g1.fill(new Rectangle2D.Double(440, 450, 60, 5)); 
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g1.fill(new Rectangle2D.Double(345, 360, 5, 80)); 
g1.fill(new Rectangle2D.Double(500, 250, 5, 90)); 
break; 
 
case 4: 
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g.setColor(new Color(255, 255, 0)); 
g.fillOval(70, 100, 50, 50); 
g1.fill(new Rectangle2D.Double(440, 450, 60, 5)); 
g1.fill(new Rectangle2D.Double(350, 240, 60, 5)); 
g1.fill(new Rectangle2D.Double(345, 360, 5, 80)); 
g1.fill(new Rectangle2D.Double(500, 250, 5, 90)); 
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case 5: 
// back to red glows 
g.setColor(new Color(255, 0, 0)); 
g.fillOval(70, 40, 50, 50); 
g1.fill(new Rectangle2D.Double(440, 450, 60, 5)); 
g1.fill(new Rectangle2D.Double(350, 240, 60, 5)); 
g1.fill(new Rectangle2D.Double(345, 360, 5, 80)); 
g1.fill(new Rectangle2D.Double(500, 250, 5, 90)); 
break; 
} 
} 
} 

Code continued...
class Light_Controller extends JPanel {
 private int lightState = 1;
 public void changeColor() {
 lightState++;
 System.out.println(lightState);
 if (lightState > 5) {
 lightState = 2;
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 Graphics2D g1 = (Graphics2D) g;
 g.setColor(new Color(255, 255, 255));
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 g1.fill(new Rectangle2D.Double(440, 450, 60, 5));
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L____________________________________________|
| |
| |
| |
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| |
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 table3.setTableHeader(null);
 table1.getColumnModel().addColumnModelListener(this);
 table3.setColumnModel(table1.getColumnModel());
 table2.setColumnModel(table1.getColumnModel());
 table2.getColumnModel().addColumnModelListener(table1);
 table3.getColumnModel().addColumnModelListener(table1);
 btn.addActionListener(this);
 getContentPane().add(pnlcontainer, BorderLayout.CENTER);
 getContentPane().add(btn, BorderLayout.SOUTH);
 setSize(new Dimension(400, 400));
 setVisible(true);
 setDefaultCloseOperation(EXIT_ON_CLOSE);
 public static void main(String[] args)
 new SynTableResize();
 public void columnAdded(TableColumnModelEvent e)
 public void columnMarginChanged(ChangeEvent e)
 TableColumnModel tcm = table1.getColumnModel();
 int columns = tcm.getColumnCount();
 for (int i = 0; i < columns; i++)
 table2.getColumnModel().getColumn(i).setPreferredWidth(tcm.getColumn(i).getWidth());
 table3.getColumnModel().getColumn(i).setPreferredWidth(tcm.getColumn(i).getWidth());
 // the following commented code wont work.
// table2.getColumnModel().getColumn(i).setPreferredWidth(tcm.getColumn(i).getPreferredWidth());
// table3.getColumnModel().getColumn(i).setPreferredWidth(tcm.getColumn(i).getPreferredWidth());
// table2.getColumnModel().getColumn(i).setWidth(tcm.getColumn(i).getWidth());
// table3.getColumnModel().getColumn(i).setWidth(tcm.getColumn(i).getWidth());
 SwingUtilities.invokeLater(new Runnable()
 public void run()
 table2.revalidate();
 table3.revalidate();
 public void columnMoved(TableColumnModelEvent e)
 public void columnRemoved(TableColumnModelEvent e)
 public void columnSelectionChanged(ListSelectionEvent e)
 public void actionPerformed(ActionEvent e)
 JTable table = new JTable(5, 5);
 table.setColumnModel(table1.getColumnModel());
 table.getColumnModel().addColumnModelListener(table1);
 pnlcontainer.add(Box.createVerticalStrut(5));
 pnlcontainer.add(table);
 pnlcontainer.validate();
 pnlcontainer.repaint();
}thanks
dayananda b v

hi,
thanks for your replay,
yes i know that, you can check the following code it works fine.
actually what i want is, when i resize table column it shold not automaticaly reszie when table resized and i dont want horizontal scroll bar, meaning that all table columns should resize with in the table size(say width 300)
if i make table autoresize off than horizontal scroll bar will appear and the other columns moved and i want scroll to view other columns.
please suggest me some way doing it, i tried with doLayout() no help,
doLayout() method only can be used when table resizes. first off all i want to restrict table resizing with in the limited size
import java.awt.BorderLayout;
import java.awt.Dimension;
import javax.swing.Box;
import javax.swing.BoxLayout;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.event.ChangeEvent;
import javax.swing.table.TableColumnModel;
public class TempSycnTable extends JFrame
 JTable table1 = new JTable(5, 5);
 MyTable table2 = new MyTable(5, 5);
 MyTable table3 = new MyTable(5, 5);
 JPanel pnlcontainer = new JPanel();
 public TempSycnTable()
 JScrollPane src2 = new JScrollPane(table2);
 JScrollPane src3 = new JScrollPane(table3);
// table1.setAutoResizeMode(JTable.AUTO_RESIZE_OFF);
// table2.setAutoResizeMode(JTable.AUTO_RESIZE_OFF);
// table3.setAutoResizeMode(JTable.AUTO_RESIZE_OFF);
// src2.setHorizontalScrollBarPolicy(JScrollPane.HORIZONTAL_SCROLLBAR_NEVER);
// src3.setHorizontalScrollBarPolicy(JScrollPane.HORIZONTAL_SCROLLBAR_NEVER);
 table2.setTableHeader(null);
 table3.setTableHeader(null);
 table3.setColumnModel(table1.getColumnModel());
 table2.setColumnModel(table1.getColumnModel());
 table2.getColumnModel().addColumnModelListener(table1);
 table3.getColumnModel().addColumnModelListener(table1);
 table2.setTableHeader(null);
 table3.setTableHeader(null);
 setLayout(new BorderLayout());
 pnlcontainer.setLayout(new BoxLayout(pnlcontainer, BoxLayout.Y_AXIS));
 pnlcontainer.add(table1.getTableHeader());
 pnlcontainer.add(Box.createVerticalStrut(5));
 pnlcontainer.add(src2);
 pnlcontainer.add(Box.createVerticalStrut(5));
 pnlcontainer.add(src3);
 getContentPane().add(pnlcontainer, BorderLayout.CENTER);
 setSize(new Dimension(300, 300));
 setVisible(true);
 setDefaultCloseOperation(EXIT_ON_CLOSE);
 public static void main(String[] args)
 new TempSycnTable();
 class MyTable extends JTable
 public MyTable()
 super();
 public MyTable(int numRows, int numColumns)
 super(numRows, numColumns);
 public void columnMarginChanged(ChangeEvent event)
 final TableColumnModel eventModel = table1.getColumnModel();
 final TableColumnModel thisModel = getColumnModel();
 final int columnCount = eventModel.getColumnCount();
 for (int i = 0; i < columnCount; i++)
 thisModel.getColumn(i).setWidth(eventModel.getColumn(i).getWidth());
 repaint();
}thanks
daya

'NAVIGATE_ABSOLUTE' method is not working in UWL

We are working on Portal 7.0.
Recently We have upgraded from SP 13-0 To 13-5.
After this upgradation We are facing some problems, following is the scenario:
1. We have a ABAP Web DynPro Application say 'A', which has button "View Details".
2. On Clicking of "View_Details" We navigate to other ABAP Web DynPro Application say 'B' .
 This was done using the 'NAVIGATE_ABSOLUTE' method of the 'IF_WD_PORTAL_INTEGRATION'.
3. Now The Same Application 'A' is being send as the Workitem to Approver's inbox.
4. Approver also was able to click on 'View_Details' button and Application 'B' used to call using 'NAVIGATE_ABSOLUTE'.
5. After upgradation, Point 2 is working fine. but point 4 is not working i.e. 'NAVIGATE_ABSOLUTE' functionality is not working when the application is send as workitem.
Please guide us for the above problem. Points assured for best solution.

Hi
Thanks for your reply. Actually i wrote simple applets and those are working well.
So i did debug the code and i found that when i am running the following code in Apple MAC IE, nothing is happening in handleEvent method. Especially it is not going into the if statement (if (evt.id==401)). here i am checking for KEY_PRESS. I also tried with keyDown method but same problem in MAC IE.
I am pasting the code that is giving me problem.
import java.awt.*;
import java.applet.*;
public class testApplet extends Applet
public void init()
setLayout(new BorderLayout());
editableArea = new EditableArea();
editableArea.setBackground(Color.yellow);
add("Center", editableArea);
EditableArea editableArea;
import java.awt.*;
public class EditableArea extends Canvas
String s = "";
public boolean handleEvent(Event evt)
if (evt.id==401)
if(evt.key >= 32 && evt.key <= 255)
char c = (char)evt.key;
s = s + c;
repaint();
return super.handleEvent(evt);
public void paint( Graphics g )
g.setColor(Color.blue);
g.drawString( s,5,15);
--------------------------------------------------------------------

Chechbox header : deselect all not working

folks,
I have a jtable generated from my database. IT has 3 columns . The 3rd column has checkboxes in it. I am implementing a "CHECK ALL"
checkbox on the header for selection and deselection of checkboxes. the below code works for selection of all boxes.. IT DOES NOT
WORK WHEN IT IS DESELECTED ? i want to make it work for deselection also
I call the custom table renderer from main program as follows :
tc = table.getColumnModel().getColumn(3);
tc.setHeaderRenderer(new CustomTableCellRenderer1(new MyItemListener(),Name));
this is item listner in main program for checkbox "check all" present in the table header :
class MyItemListener implements ItemListener
public void itemStateChanged(ItemEvent e) {
Object source = e.getSource();
if (source instanceof AbstractButton == false) return;
boolean checked=e.getStateChange() == ItemEvent.SELECTED;
for(int x = 0, y = table.getRowCount(); x < y; x++)
table.setValueAt(new Boolean(checked),x,3);
if (e.getStateChange() == ItemEvent.DESELECTED) // dosent work
System.out.println("deselect all"); // may b code for deselection
this is CustomTableCellRenderer1 class below:
package moxaclient;
import java.awt.*;
import javax.swing.*;
import javax.swing.table.*;
import java.awt.event.*;
class CustomTableCellRenderer1 extends JCheckBox
implements TableCellRenderer, MouseListener {
private static final long serialVersionUID = 1L;
protected CustomTableCellRenderer1 rendererComponent;
protected int column;
String Name;
private JTable table1;
Object abc=null;
protected boolean mousePressed = false;
public CustomTableCellRenderer1(ItemListener itemListener,String name) {
rendererComponent = this;
rendererComponent.addItemListener(itemListener);
this.Name=name;
public Component getTableCellRendererComponent(
JTable table, Object value,
boolean isSelected, boolean hasFocus, int row, int column) {
if (table != null) {
JTableHeader header = table.getTableHeader();
this.table1=table;
if (header != null) {
rendererComponent.setForeground(header.getForegrou nd());
rendererComponent.setBackground(header.getBackgrou nd());
rendererComponent.setFont(header.getFont());
header.addMouseListener(rendererComponent);
setColumn(column);
rendererComponent.setText("Check All");
setBorder(UIManager.getBorder("TableHeader.cellBor der"));
return rendererComponent;
protected void setColumn(int column) {
this.column = column;
public int getColumn() {
return column;
protected void handleClickEvent(MouseEvent e) {
if (mousePressed) {
mousePressed=false;
JTableHeader header = (JTableHeader)(e.getSource());
JTable tableView = header.getTable();
TableColumnModel columnModel = tableView.getColumnModel();
int viewColumn = columnModel.getColumnIndexAtX(e.getX());
int column = tableView.convertColumnIndexToModel(viewColumn);
if (viewColumn == this.column && e.getClickCount() == 1 && column != -1) {
doClick();
int row=table1.getRowCount();
if(row!=0)
for(int i=0;i<=row-1;i++)
String Sensor =(String) table1.getValueAt(i, column-3); // // when checkbox selectedthis code gets all value present in table and stores in string abc
Double Value =(Double) table1.getValueAt(i, column-2);
String Date =(String) table1.getValueAt(i, column-1);
abc += Sensor+"\t"+Value+"\t"+Name+"\t"+Date+"\t";
public void mouseClicked(MouseEvent e) {
handleClickEvent(e);
((JTableHeader)e.getSource()).repaint();
public void mousePressed(MouseEvent e) {
mousePressed = true;
public void mouseReleased(MouseEvent e) {
public void mouseEntered(MouseEvent e) {
public void mouseExited(MouseEvent e) {
plzz help.

please add tags around the code in your posts.
Dinud123 wrote:
IT DOES NOT
WORK WHEN IT IS DESELECTED ? i want to make it work for deselection alsoI don't know any user interface where I would toggle "select all" and "deselect all" via the same control. That may be for a reason.
So my suggestion is: provide a second button for "deselect all".
bye
TPD

KeyListener not working in Linux

Hello guys, I'm having a weird problem I was hoping I could get resolved.
I finished a Pong applet for my Java class, and it works just fine under Windows and on my Mac.
But when I run it under Linux, the Applet doesn't work correctly.
The applet draws, and my timer works, but my KeyListener does not work.
I believe all of my Java files are updated properly.
But I do not understand why KeyListener does not work under Linux, but it does in Windows.
I then made a very basic applet just to test my KeyListener, and it still does not work.
This is how I was taught to do KeyListeners, but if I'm doing something wrong, please help me out!
here is the basic program code:
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
public class Test extends JApplet implements KeyListener
int x = 0;
int y = 250;
public void init()
addKeyListener(this);
public void paint(Graphics g)
g.setColor(Color.white);
g.fillRect(0,0,500,500);
g.setColor(Color.black);
g.fillRect(x,y,50,50);
public void keyPressed(KeyEvent event)
int keyCode = event.getKeyCode();
if(keyCode == KeyEvent.VK_RIGHT)
x += 10;
public void keyReleased(KeyEvent event)
public void keyTyped(KeyEvent event)

What if don't use a KeyListener but instead use key binding? For instance,
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
@SuppressWarnings("serial")
public class Test2 extends JPanel {
private static final int DELTA_X = 10;
private static final int DELTA_Y = DELTA_X;
private static final Dimension MAIN_SIZE = new Dimension(600, 600);
enum Arrows {
    LEFT(KeyEvent.VK_LEFT, -DELTA_X, 0),
    RIGHT(KeyEvent.VK_RIGHT, DELTA_X, 0),
    UP(KeyEvent.VK_UP, 0, -DELTA_Y),
    DOWN(KeyEvent.VK_DOWN, 0, DELTA_Y);
    private int keyCode;
    private int deltaX, deltaY;
    private Arrows(int keyCode, int deltaX, int deltaY) {
      this.keyCode = keyCode;
      this.deltaX = deltaX;
      this.deltaY = deltaY;
    public int getDeltaX() {
      return deltaX;
    public int getDeltaY() {
      return deltaY;
    public int getKeyCode() {
      return keyCode;
int x = 0;
int y = 250;
public Test2() {
    setBackground(Color.white);
    setPreferredSize(MAIN_SIZE);
    InputMap inMap = getInputMap(JComponent.WHEN_IN_FOCUSED_WINDOW);
    ActionMap actMap = getActionMap();
    for (Arrows arrow : Arrows.values()) {
      inMap.put(KeyStroke.getKeyStroke(arrow.getKeyCode(), 0), arrow);
      actMap.put(arrow, new MyAction(arrow));
private class MyAction extends AbstractAction {
    private Arrows arrow;
    public MyAction(Arrows arrow) {
      this.arrow = arrow;
    public void actionPerformed(ActionEvent e) {
      x += arrow.getDeltaX();
      y += arrow.getDeltaY();
      repaint();
@Override
public void paintComponent(Graphics g) {
    super.paintComponent(g);
    g.setColor(Color.black);
    g.fillRect(x, y, 50, 50);
import javax.swing.JApplet;
@SuppressWarnings("serial")
public class TestApplet extends JApplet {
public void init() {
    try {
      javax.swing.SwingUtilities.invokeAndWait(new Runnable() {
        public void run() {
          createGUI();
    } catch (Exception e) {
      System.err.println("createGUI didn't successfully complete");
private void createGUI() {
    getContentPane().add(new Test2());
}

Code not working... again :P

This is my 'paddle' game. You bounce a ball around the around the screen, and it's all working. I'm on the final part, which is what happens when you miss the ball (it goes off the left side of the screen). I'd like to print out a message to the middle of my screen saying "Press R to Reset", while the ball is not anywhere to be seen on the screen (is there a way I can get it to stop moving? my method right now is just to place it far away off screen, which just doesn't seem very professional to me). I made an if statement that should control this, but it's not working (when the you miss the ball, it disappears but nothing prints to the screen, and pressing R doesn't do anything either ) .
To skip quickly to the if statement just use the find option in your browser and put in 'PROBLEM'
This is all written in an applet.
This is my code:
int width, height, x, ypaddle, xball = 1, yball = 1, xctrl = 1, yctrl = 1, speed = 5, scorekeeper = 0, startkeeper = 0, keykeeper;
 Graphics g;
 String startagain;
 char move;
 Thread run;
 private Random random = new Random ();
 int ballstart = random.nextInt (400);
 *Initializes variables
 public void init ()
 resize (700, 500);
 setBackground (Color.white);
 addKeyListener (this);
 addMouseListener (this);
 addMouseMotionListener (this);
 run = new Thread (this);
 run.start ();
 startagain = "To Reset Press R";
 xball = ballstart;
 yball = ballstart;
 public void run ()
 while (true)
 try
 run.sleep (50);
 if (xctrl == 1 && startkeeper == 0)
 xball = xball + speed;
 if (yctrl == 1 && startkeeper == 0)
 yball = yball + speed;
 if (xctrl == 0 && startkeeper == 0)
 xball = xball - speed;
 if (yctrl == 0 && startkeeper == 0)
 yball = yball - speed;
 if (xball + 50 >= 660 && startkeeper == 0)
 xball = xball - speed;
 xctrl = 0;
 if ((xball + 50) < 15 && yball <= ypaddle + 50 && yball >= ypaddle - 70 && startkeeper == 0)
 xball = xball + speed;
 xctrl = 1;
 if (yball + 50 >= 460 && startkeeper == 0)
 yball = yball - speed;
 yctrl = 0;
 if (yball + 50 <= 35 && startkeeper == 0)
 yball = yball + speed;
 yctrl = 1;
//PROBLEM BELOW
 if (xball + 50 <= 0 && startkeeper == 0)
 if (xball + 50 <= 0)
 yball = -100;
 xball = -100;
 repaint ();
 g.drawString (startagain, 300, 300);
 if (xball + 50 <= 0 && startkeeper == 1)
 scorekeeper = scorekeeper + 1;
 xball = ballstart;
 yball = ballstart;
 startkeeper = 0;
 repaint ();
 catch (Exception e)
 public void keyPressed (KeyEvent e)
 keykeeper = e.getKeyChar ();
 if (keykeeper == 'r')
 startkeeper = 1;
 keykeeper = 'x';
 }

For a public Usenet forum, most readers will stop reading by 20Kb, and start complaining at 30Kb.
lol, I have a long way to go before i make programs that big :P
By incompatible snippet, do you mean I should post the whole thing? Here it is:
// The "Ping" class.
import java.applet.*;
import java.awt.*;
import java.awt.event.*;
import java.util.Random;
*Ping
*@author Lenny
public class Ping extends Applet
 implements KeyListener, MouseListener, MouseMotionListener, Runnable
 int width, height, x, ypaddle, xball = 1, yball = 1, xctrl = 1, yctrl = 1, speed = 5, scorekeeper = 0, startkeeper = 0, keykeeper;
 Graphics g;
 String startagain;
 char move;
 Thread run;
 private Random random = new Random ();
 int ballstart = random.nextInt (400);
 *Initializes variables
 public void init ()
 resize (700, 500);
 setBackground (Color.white);
 addKeyListener (this);
 addMouseListener (this);
 addMouseMotionListener (this);
 run = new Thread (this);
 run.start ();
 startagain = "To Reset Press R";
 xball = ballstart;
 yball = ballstart;
 public void run ()
 while (true)
 try
 run.sleep (50);
 if (xctrl == 1 && startkeeper == 0)
 xball = xball + speed;
 if (yctrl == 1 && startkeeper == 0)
 yball = yball + speed;
 if (xctrl == 0 && startkeeper == 0)
 xball = xball - speed;
 if (yctrl == 0 && startkeeper == 0)
 yball = yball - speed;
 if (xball + 50 >= 660 && startkeeper == 0)
 xball = xball - speed;
 xctrl = 0;
 if ((xball + 50) < 15 && yball <= ypaddle + 50 && yball >= ypaddle - 70 && startkeeper == 0)
 xball = xball + speed;
 xctrl = 1;
 if (yball + 50 >= 460 && startkeeper == 0)
 yball = yball - speed;
 yctrl = 0;
 if (yball + 50 <= 35 && startkeeper == 0)
 yball = yball + speed;
 yctrl = 1;
//PROBLEM HERE
 if (xball + 50 <= 0 && startkeeper == 0)
 if (xball + 50 <= 0)
 yball = -100;
 xball = -100;
 repaint ();
 g.drawString (startagain, 300, 300);
 if (xball + 50 <= 0 && startkeeper == 1)
 scorekeeper = scorekeeper + 1;
 xball = ballstart;
 yball = ballstart;
 startkeeper = 0;
 repaint ();
 catch (Exception e)
 public void keyPressed (KeyEvent e)
 keykeeper = e.getKeyChar ();
 if (keykeeper == 'r')
 startkeeper = 1;
 keykeeper = 'x';
 public void keyReleased (KeyEvent e)
 public void keyTyped (KeyEvent e)
 public void mouseEntered (MouseEvent e)
 public void mouseExited (MouseEvent e)
 public void mousePressed (MouseEvent e)
 public void mouseReleased (MouseEvent e)
 public void mouseClicked (MouseEvent e)
 public void mouseMoved (MouseEvent e)
 ypaddle = e.getY ();
 repaint ();
 public void mouseDragged (MouseEvent e)
 public void paint (Graphics g)
 paddle (g, ypaddle);
 walls (g);
 //enemies (g);
 ball (g);
 * Creates the paddle for hitting the ball
 *@param y value used to move the paddle vertically
 public void paddle (Graphics g, int y)
 g.fillRect (10, y - 25, 15, 70);
 *Creates the walls for the ball to bounce off of.
 public void walls (Graphics g)
 g.setColor (Color.yellow);
 g.fillRect (25, 10, 675, 25);
 g.setColor (Color.red);
 g.fillRect (675, 10, 25, 475);
 g.setColor (Color.cyan);
 g.fillRect (25, 475, 675, 25);
 *Creates the enemies to avoid.
 public void enemies (Graphics g)
 int place1 = random.nextInt (1000);
 int place1a = random.nextInt (1000);
 int place2 = random.nextInt (1000);
 int place2a = random.nextInt (1000);
 g.setColor (Color.black);
 g.fillOval (place1, place1a, 10, 10);
 public void ball (Graphics g)
 g.setColor (Color.black);
 g.fillRect (xball + 50, yball + 50, 20, 20);
 g.setColor (Color.white);
 g.fillRect (xball + 53, yball + 55, 5, 5);
 g.fillRect (xball + 63, yball + 55, 5, 5);
 g.fillRect (xball + 56, yball + 63, 9, 5);
} // Ping classEdited by: soundweave on Jan 16, 2010 7:54 PM

Draw method is not working

Why the drawLine() is working only inside the paint method??
BufferedImage image = new BufferedImage(800,500,BufferedImage.TYPE_INT_ARGB);
     Graphics2D g = (Graphics2D)image.getGraphics();
public void paint(Graphics g)
               g.setColor(Color.black);
                         //Here, the drawLine() method works
               g.drawLine(50,0,50,150);
public void paintX(Graphics g,Point c)
                    //Here, the drawLine() method does not work
                    g.setColor(Color.black);
               g.drawLine(0-e,0-e,50-e,50-e);
               g.drawLine(0-e,50-e,50-e,0-e);
               repaint();
     }

er, unless you're using JDK 1.5 and it introduces methods I know nothing about, as far as I know
public void paintX(..) is not a AWT or Swing method. Thus it will never be invoked unless you call it.

AWT repaint() not Working

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