JScrollPane.setBackground(Color.white);

Hi @all,
I want to make the BackgroundColor of my JScrollPane white. Does anybody know, why this little piece of code doesn?t do anything?
I can compile it, but then the background is still grey.
JLabel pic = new JLabel(new ImageIcon("dile_logo.jpg"));
JScrollPane sp = new JScrollPane(pic, JScrollPane.VERTICAL_SCROLLBAR_NEVER,
JScrollPane.HORIZONTAL_SCROLLBAR_NEVER);
sp.setBackground(Color.white);
add(sp);
thank you
Juergen

I tried:
sp.setOpaque(true);
and also:
pic.setBackground(Color.white);
but both does not change anything.
@vaskol
I have a picture that is smaller than the window and also as the scrollpane. So I do not have ScrollBars.
The background of the picture is white and the rest of the window is grey and I want to change that to white.
I do not understand what you mean with "that square in the corner" and also this part of your explication.
Sorry
Juergen

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SetBackground(Color.WHITE) not working

I am trying to set background color to white, but it's not working. Can anyone find out the problem?
import java.io.*;
import java.util.*;
import java.awt.*;
import javax.swing.*;
import java.awt.font.FontRenderContext;
import java.awt.font.LineMetrics;
import java.awt.font.TextLayout;
import java.awt.geom.*;
public class Lab3ex2 {
 * @param args ignored
 public static void main(String[] args) throws IOException {
 // Station[] stations = new Station[100];
 // int n = 0;
 ArrayList<Station> stations = new ArrayList<Station>();
 ArrayList xPos = new ArrayList();
 ArrayList yPos = new ArrayList();
 final String fname = "C://Positions-v2.csv";
 BufferedReader br = new BufferedReader(new FileReader(fname));
 String stationName, item, line;
 line = br.readLine(); // first line skipped
 line = br.readLine(); // 2nd
 while (line != null) {
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 // stations[n] = new Station(stationName, x, y);
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 for (Station station : stations) {
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 JFrame f = new JFrame("Lab3ex2");
 f.add(new MyPanel(stations, xPos, yPos));
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 f.setVisible(true);
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class Station {
 public String name;
 public float x;
 public float y;
 public String justification;
 public Station(String name, float x, float y, String justification) {
 this.name = name;
 this.x = x;
 this.y = y;
 this.justification = justification;
 public String toString() {
 // todo: format x and y
 return name + " (" + x + "," + y + ")";
class MyPanel extends JPanel {
 private ArrayList<Station> stations;
 private float xMax, yMax;
 private ArrayList xPos;
 private ArrayList yPos;
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 Graphics2D g2 = (Graphics2D)g;
 Dimension dim = getSize();
 float xScale, yScale, scale, x, y, radius = 1.0f, diam;
 String justification = null;
 diam = 2.0f*radius;
 Shape s;
 xScale = dim.width/xMax;
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 scale = Math.min(xScale, yScale);
 g2.scale(scale, scale);
 g2.setStroke(new BasicStroke(1.0f/scale)); // thin lines
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 for (Station st : stations) {
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 g2.draw(s);
 g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING,
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 if(justification.equals("R"))
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GeneralPath theShape = new GeneralPath();
 theShape.moveTo((float)(Float)xPos.get(0), (float)(Float)yPos.get(0));
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 theShape.lineTo((float)(Float)xPos.get(i), (float)(Float)yPos.get(i));
g2.draw(theShape);
this.setBackground(Color.WHITE);
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 this.stations = stations;
 this.xPos = xPos;
 this.yPos = yPos;
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}

import java.io.*;
import java.util.*;
import java.awt.*;
import javax.swing.*;
import java.awt.font.FontRenderContext;
import java.awt.font.LineMetrics;
import java.awt.font.TextLayout;
import java.awt.geom.*;
* Advanced Java Lab 3 ex 2: reading and drawing Met station data
* @author rallen
public class Lab3ex2 {
 * @param args
 * ignored
 public static void main(String[] args) throws IOException {
 // Station[] stations = new Station[100];
 // int n = 0;
 ArrayList<Station> stations = new ArrayList<Station>();
 ArrayList xPos = new ArrayList();
 ArrayList yPos = new ArrayList();
 final String fname = "C://Positions-v2.csv";
 BufferedReader br = new BufferedReader(new FileReader(fname));
 String stationName, item, line;
 line = br.readLine(); // first line skipped
 line = br.readLine(); // 2nd
 while (line != null) {
 StringTokenizer stoke = new StringTokenizer(line, ",");
 stationName = stoke.nextToken().trim();
 item = stoke.nextToken();
 float x = Float.parseFloat(item);
 item = stoke.nextToken();
 float y = Float.parseFloat(item);
 item = stoke.nextToken();
 String justification = item;
 // stations[n] = new Station(stationName, x, y);
 // n++;
 stations.add(new Station(stationName, x, y, justification));
 xPos.add(x);
 yPos.add(y);
 line = br.readLine(); // line 3,4,...
 for (Station station : stations) {
 System.out.println(station);
 // System.out.printf("%20s %6.1f,%6.1f)%n",station.name, station.x,
 // station.y);
 System.out.print("Press enter...");
 System.in.read();
 JFrame f = new JFrame("Lab3ex2");
 f.add(new MyPanel(stations, xPos, yPos));
 f.setSize(500, 400);
 f.setVisible(true);
 f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); // to avoid needing ^C
class Station {
 public String name;
 public float x;
 public float y;
 public String justification;
 public Station(String name, float x, float y, String justification) {
 this.name = name;
 this.x = x;
 this.y = y;
 this.justification = justification;
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 // todo: format x and y
 return name + " (" + x + "," + y + ")";
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 private ArrayList<Station> stations;
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 private ArrayList xPos;
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 this.setLayout(new FlowLayout());
 Graphics2D g2 = (Graphics2D) g;
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 float xScale, yScale, scale, x, y, radius = 1.0f, diam;
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 Shape s;
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 yScale = dim.height / yMax;
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 g2.scale(scale, scale);
 g2.setStroke(new BasicStroke(1.0f / scale)); // thin lines
 g2.setFont(new Font("SanSerif", Font.PLAIN, (int) (11.2f / scale))); // always
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 if (st.name.length() > total)
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 y = st.y - radius;
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 g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING,
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 if (justification.equals("R")) {
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 theShape.moveTo((float) (Float) xPos.get(0), (float) (Float) yPos
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 theShape.lineTo((float) (Float) xPos.get(i), (float) (Float) yPos
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 this.xPos = xPos;
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 if (st.x > xMax)
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}Edited by: swapnil_raverkar on Sep 21, 2008 5:10 AM

SetBackground color not working

Hello,
While viewing my applet from within a HTML file, my background color is still grey, except the buttons.
The color is fine while viewing with appletviewer so I'm a bit confussed.
Any ideas as to why would be appreciated.
Thanks in advance.
import java.awt.*;
import javax.swing.*;
import java.util.*;
import java.text.SimpleDateFormat;
import java.awt.event.*;
public class MyCalendar extends javax.swing.JApplet {
 public void init()
 Container content = getContentPane();
 JPanel calendars = new JPanel(new GridLayout(0,1));
 JScrollPane jsp = new JScrollPane(calendars);
 content.add(jsp, BorderLayout.CENTER);
 GregorianCalendar gc = new GregorianCalendar();
 //gc.set(GregorianCalendar.DAY_OF_YEAR,1);c
 gc.set(GregorianCalendar.DAY_OF_MONTH,1);
 for (int i=0; i<12; i++)
 calendars.add(new CalendarPanel(gc));
 gc.add(GregorianCalendar.MONTH, 1);
 //setSize(300, 300);
 //setVisible(true);
class CalendarPanel extends JPanel implements ActionListener
 private JLabel jl;
 private int testYear;
 private final static String[] DOW = {"S","M","T","W","T","F","S"};
 SimpleDateFormat sdf = new SimpleDateFormat("MMMM");
 GridBagConstraints gbc = new GridBagConstraints(0,0,7,1,1.0,1.0,GridBagConstraints.CENTER,
 GridBagConstraints.HORIZONTAL,new Insets(0,0,0,0),0,0);
 public CalendarPanel(GregorianCalendar cal)
 setLayout(new GridBagLayout());
 setBorder(BorderFactory.createEtchedBorder());
 setBackground(Color.white);
 //get the month name
 String testMonth=sdf.format(cal.getTime());
 testYear = cal.get(GregorianCalendar.YEAR);
 int nextYear = cal.get(GregorianCalendar.YEAR)+1;
 JLabel lblYear = new JLabel(""+testYear);
 JLabel jl = new JLabel(testMonth, JLabel.CENTER);
 add(jl,gbc);
 gbc.gridwidth=1;
 gbc.gridy=1;
 for (int i=0; i<7; i++)
 gbc.gridx=i;
 add(new JLabel(DOW, JLabel.CENTER),gbc);
 gbc.gridx = cal.get(GregorianCalendar.DAY_OF_WEEK)-1;
 gbc.gridy++;
 int daysInMonth = cal.getActualMaximum(GregorianCalendar.DAY_OF_MONTH);
 for (int i=1; i<=daysInMonth; i++)
 JButton jb = new JButton(""+i);
 jb.setBackground(Color.white);
 jb.setForeground(Color.blue);
 jb.addActionListener(this);
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 if (++gbc.gridx==7)
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 public void actionPerformed(ActionEvent event)
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 if(event.getSource() instanceof JButton)
 System.out.println("Button:"+command);
 String text = jl.getText();
 System.out.println("Month:"+text);
 System.out.println("Year:"+testYear);

Ok, the last one worked but now one of my labels won't change color even after jl.setOpaque(true).
import java.awt.*;
import javax.swing.*;
import java.util.*;
import java.text.SimpleDateFormat;
import java.awt.event.*;
public class MyCalendar extends javax.swing.JApplet {
 public void init()
 Container content = getContentPane();
 JPanel calendars = new JPanel(new GridLayout(0,1));
 JScrollPane jsp = new JScrollPane(calendars);
 content.add(jsp, BorderLayout.CENTER);
 GregorianCalendar gc = new GregorianCalendar();
 //gc.set(GregorianCalendar.DAY_OF_YEAR,1);c
 gc.set(GregorianCalendar.DAY_OF_MONTH,1);
 for (int i=0; i<12; i++)
 calendars.setOpaque(true); //this worked
 calendars.add(new CalendarPanel(gc));
 gc.add(GregorianCalendar.MONTH, 1);
class CalendarPanel extends JPanel implements ActionListener
 private JLabel jl;
 private int testYear;
 private final static String[] DOW = {"S","M","T","W","T","F","S"};
 SimpleDateFormat sdf = new SimpleDateFormat("MMMM");
 GridBagConstraints gbc = new GridBagConstraints(0,0,7,1,1.0,1.0,GridBagConstraints.CENTER,
 GridBagConstraints.HORIZONTAL,new Insets(0,0,0,0),0,0);
 public CalendarPanel(GregorianCalendar cal)
 setLayout(new GridBagLayout());
 setBorder(BorderFactory.createEtchedBorder());
 setBackground(Color.white);
 //get the month name
 String testMonth=sdf.format(cal.getTime());
 testYear = cal.get(GregorianCalendar.YEAR);
 int nextYear = cal.get(GregorianCalendar.YEAR)+1;
 JLabel lblYear = new JLabel(""+testYear);
 JLabel jl = new JLabel(testMonth, JLabel.CENTER);
 jl.setOpaque(true); //only works in appletviewer NOT html
 jl.setBackground(Color.red);
 add(jl,gbc);
 gbc.gridwidth=1;
 gbc.gridy=1;
 for (int i=0; i<7; i++)
 gbc.gridx=i;
 add(new JLabel(DOW, JLabel.CENTER),gbc);
 gbc.gridx = cal.get(GregorianCalendar.DAY_OF_WEEK)-1;
 gbc.gridy++;
 int daysInMonth = cal.getActualMaximum(GregorianCalendar.DAY_OF_MONTH);
 for (int i=1; i<=daysInMonth; i++)
 JButton jb = new JButton(""+i);
 jb.setBackground(Color.white);
 jb.setForeground(Color.blue);
 jb.addActionListener(this);
 jb.setBorder(BorderFactory.createRaisedBevelBorder());
 add(jb,gbc);
 if (++gbc.gridx==7)
 gbc.gridx=0;
 gbc.gridy++;
 public void actionPerformed(ActionEvent event)
 String command = event.getActionCommand();
 if(event.getSource() instanceof JButton)
 System.out.println("Button:"+command);
 String text = jl.getText();
 System.out.println("Month:"+text);
 System.out.println("Year:"+testYear);
[\code]

JButton.setBackground(Color color) not working

With JDK 1.4.2, my JButtons below have a blue background. When I compile with 1.5, they are gray. I tried using setOpaque(true) on one of them below. It didn't work. Any ideas?
class MainMenu extends JFrame
 public MainMenu() throws Exception
 super("");// no title on main menu
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 JLabel lImage = new JLabel(icon);
 JButton bEditCustomers = new JButton("<html>Customers</html>");
 bEditCustomers.setOpaque(true);
 bEditCustomers.setBackground(new Color(4194496));
 JButton bAccounting = new JButton("<html>Accounting</html>");
 bAccounting.setBackground(new Color(4194496));
 JButton bEditReminders = new JButton("<html>Reminders</html>");
 bEditReminders.setBackground(new Color(4194496));
 JButton bPublish = new JButton("<html>Publish</html>");
 bPublish.setBackground(new Color(4194496));
 JButton bExit = new JButton("<html>Exit</html>");
 bExit.setBackground(new Color(4194496));
 bEditCustomers.addActionListener(
 new ActionListener() {
 public void actionPerformed(ActionEvent actionEvent) {
 try {
 new TableListFrame(MainMenu.this, "customers");
 catch (Exception e) {
 e.printStackTrace();
 bAccounting.addActionListener(
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 bEditReminders.addActionListener(
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 e.printStackTrace();
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 catch (Exception e) {
 e.printStackTrace();
 bExit.addActionListener(
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 bAccounting.setFont(buttonFont);
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 bPublish.setFont(buttonFont);
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 pane.add(bEditCustomers);
 pane.add(bAccounting);
 pane.add(bEditReminders);
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 this.setResizable(false);
 this.getContentPane().add(pane);
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 bAccounting.setBounds(((appWidth-4-235)/2)+insets.left, 250 + insets.top, 235, 40);
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As a newbie to the forum you obviously didn't understand how to post a simple direct question, with only the relevant code to demonstrate the problem, which is why I provided you with all the extra information to help you get better answers in the future.
Did you bother to read the link of creating an SSCCE?
Your question is about setting the background color of a button. 99% of the code you posted is not related to that issue. Keep the code simple so we don't waste time reading through unnecessary code. That way we can determine whether the problem is with your code or the environment as I already mentioned.
1) Though the information about setting the text color is helpful, the
background color of the button is the subject of the posting. Please
limit your replies to the subject of the posting.If the code posted was only related to the background color then we wouldn't have this issue now would we? When I see something strange or wrong I make a comment whether it is directly related to the question or not. It has been my experience that most people appreciate the bonus advice, so I will not change my behaviour for you. If you don't like the advice, then just ignore it.
2) Regarding, "I don't use 1.5 so I can't really help you, but neither can
anybody else...", please read Michael_Dunn's post, who remarkably
was able to provide help.My comment was related to the code you provided. Nobody could use the code to compile and execute to see if it ran on their machine. So, Michael, had to waste time creating his own simple test program to see if it worked, which it did.
My point was if you provided the same simple demo program that Michael did, then all he (or anybody else) would have had to do would be to copy, compile and test the program. You should be spending the time creating the simple test program not each of us individually. Think of how much time is wasted if everybody who wanted to help you had to create their own program? Thats why I included the link on creating an SSCCE, so the next time we don't need to waste time.
3) ..... Otherwise, it's alright not to reply to a subject. Nobody will think less of you.Of course I don't have to replay to every question (and I don't), but if you don't learn to post a question properly you will make the same mistake again and again. That was the context of my answer. It was designed to help you ask a better question the next time.
4) Your comment, "And don't forget to use the Code Formatting Tags > so the code retains its original formatting." That was a standard message I use for many newbies to the forum. I'm amazed at the number of people who think we are mind readers and can guess exactly what is causing the problem without posting any code. So I got tired of typing in a different message every time and I now just cut and paste. Yes I could have edited the last line out, but you would be amazed at how many people format the code the first time but then forget to do it when prompted for more detail. So I just keep it in all messages.
Please keep your comments related to the problem. I think I've learned a think or two over the years on how to ask and answer a question.

JLabel.setBackground(Color.red) not working

Hi, I am using the (JLabel) lblPrmf.setBackground(Color.RED), but the label is not colored. Here is my program:
import java.util.*;
import javax.swing.*; //JFrame and JPanel etc...
import java.awt.*; //BorderLayout and Container etc....
import java.awt.Color;
import java.awt.event.*; //ActionListener og WindowAdapter
public class AllVac extends JFrame
//Define JLabel
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private JLabel lblAbs;
private JLabel lblPrmf;
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private JButton back;
private JButton forward;
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private JPanel south;
private JPanel north;
public AllVac()
// JFrame jf = new JFrame("Vacation for the Stavanger Team ");
Container c = getContentPane();
// c.setTitle("Vacation for the Stavanger Team ");
c.setLayout(new BorderLayout());
c.add(new ShowNorth(), BorderLayout.NORTH);
c.add(new ShowSouth(), BorderLayout.SOUTH);
pack();
setVisible(true);
addWindowListener(new Close());
public static void main(String args[])
AllVac a = new AllVac();
public class ShowNorth extends JPanel
public ShowNorth()
 north = new JPanel(new GridLayout(1, 3));
 month = new JButton("August 2006");
 back = new JButton("<<");
 forward = new JButton(">>");
 north.add(back);
 north.add(month);
 north.add(forward);
 add(north);
public class ShowSouth extends JPanel
public ShowSouth()
 int days = 31;
 south = new JPanel(new GridLayout(16, days+1));
//Arrange the days
for ( int i = 1; i<(days+1); i++)
lblDays = new JLabel(" " + Integer.toString(i));
lblDays.setBorder(BorderFactory.createLineBorder(Color.red));
south.add(lblDays);
add(south, BorderLayout.LINE_START);
//Fill in the names and vacation days
for ( int i = 1; i<(days+1); i++)
lblAbs = new JLabel(" ");
south.add(lblAbs);
add(south, BorderLayout.LINE_START);
for (int j = 0; j<14; j++)
for ( int i = 1; i<days+1; i++)
String v = "v";
lblPrmf = new JLabel(" " + v + " ");
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lblPrmf.setBorder(BorderFactory.createLineBorder(Color.blue));
lblPrmf.setBackground(Color.RED);
lblPrmf.repaint();
south.add(lblPrmf);
add(south);
public class Close extends WindowAdapter
public void windowClosing(WindowEvent c)
System.exit(0);
}

You are building a GUI with Swing components. Why would you ask the question in the general programming forum???? People there may never have built a GUI or heard of Swing.
Concepts of creating GUI components adding then to a GUI, dealing with models, listening to events and responding to the events are all techniques related to GUI programming. Even Swing programming is different from AWT programming in some cases.
So when you topic title says. "I have a problem, with a Swing (JLabel) component", or "How do I change a JTable in a JScrollPane" where do you think the question should be asked. Maybe its just me but I would think the Swing forum is where you would find the experts, or at least people who think they know something about Swing.
Your previous posting on "display a button on a background image" was not very clear. You use an Applet and Panel which are an AWT components. But then you are also using JFrame and JButton which are Swing components. Since you posted the question in the general programming forum, I had no idea whether you where attempting to write an AWT or a Swing application so I ignored the posting.

How can I select and delete the fill color (white background) of a live trace (B&W) with in an actio

How can I select and delete the fill color (white background) of a live trace (B&W) with in an action set?
Illustrator CS4 in windows XP.

Maybe Li[ve trace] is not t]he way[ to go
I have some suggestion one leave it as is and use a blending mode of multiply to give it a color background like this
leave it as is make it a grayscale tiff import int Illustrator and color it it in Illustrator like this
Or trace over it with the brush tool aand then give it a color ground.
Or do the original over and do a cleaner job with no tone or a minimum of tone. Then Live trace.

SetBackground(Color c)

Hello All,
What do you know about setBackground(Color c) execution ?
I mean does this function work as PostMessage() or as SendMessage ? Can I be sure that after the funcion has returned this "paint message" has already been processed by the system ?

Wrong. I suggest you take a look at the code in JComponent:
public void setBackground(Color bg) {
   Color oldBg = getBackground();
   super.setBackground(bg);
   if ((oldBg != null) ? !oldBg.equals(bg) : ((bg != null) && !bg.equals(oldBg))) {
      // background already bound in AWT1.2
      repaint();
}But in general if you program in such a way that it matters when exactly
your component gets repainted, better re-think your approach:
You should call setBackground() only from AWTs event thread and you
better don't make long-running calculations in this thread.
However at the latest your component will get repainted when this
thread is idle.
Also, take a look at the JavaDoc of repaint():
"Adds the specified region to the dirty region list if the component is showing. The component will be repainted after all of the currently pending events have been dispatched."
So even repaint() does not paint your component immediatly.
The gist of it: JavaDoc and the JDK sources are your friend.

Command Click in edit changes color white balance and tint in edit

Command Click in edit changes color white balance and tint in edit, what is happening?

robwouds:
Welcome to the Apple Discussions. Must be a hidden keyboard combination for temperature and tint. Not sure if the user can set different settings of each that the keystrokes will take you thru. Just hit the reset button in the Adjust pane to get it back to normal.
Do you Twango?

JFrame setBackground(Color c)

i'm just curious about Swing so i started reading sun tut Using Swing Components /Using Top-Level Containers and at the same time reviewing a tut i built some time ago called DiveLog (also from sun).
package divelog;
import javax.swing.*;
import java.awt.*;   // Contains all of the classes for creating user
                     // interfaces and for painting graphics and images.
import java.awt.event.*; // Provides interfaces and classes for
                         // dealing with different types of events fired by AWT components
public class DiveLog {
    private JFrame dlframe;
    //private JTabbedPane tabbedPane;
    public DiveLog() {
        JFrame.setDefaultLookAndFeelDecorated(true);
        dlframe = new JFrame ("T?tulo do frame");
        dlframe.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        dlframe.setSize(400, 200);
        //dlframe.setBackground(Color(49, 106, 197));
        Color c = new Color(49, 106, 197);
        dlframe.setBackground(c);
        //dlframe.setForeground(c);
        //dlframe.pack();
        // Causes this Window to be sized to fit the
        // preferred size and layouts of its subcomponents.
        // If the window and/or its owner are not yet displayable,
        // both are made displayable before calculating the preferred size.
        // The Window will be validated after the preferredSize is calculated.
        dlframe.setVisible(true);
        System.out.print(dlframe.getBackground());
    public static void main(String args[]) {
        DiveLog dl = new DiveLog();
}My Q:
what's the use of
.setBackground(c); if we cant see it?

The content pane is always painted over the JFrame. So you would set the background color of the content pane, not the frame. So, I agree with you, there is no need for that line of code.
The only possible reason I could think of is that when using a slow computer the painting may not be done fast enough and you could get a flicker as the frame is painted and then the content pane.
JFrame frame = new JFrame();
frame.setBackground( Color.RED );
frame.getContentPane().setBackground( Color.GREEN );
frame.setSize(300, 300);
frame.setVisible(true);
Run the above code and you will notice a flicker as the frame is first painted red and then green. So to reduce flicker you could set the frame background to green as well. In most cases when using the default background color of gray you don't notice the flicker so you don't usually worry about it.

JComponent.setbackground(Color.BLACK) is NOT working

I am creating Space Invaders game and have GamePanel as my JComponent, named panel. The background is not changing for sum reason though???
import java.awt.*;
import javax.swing.*;
public class SpaceInvaders{
 //variables
 public static final int WIDTH = 800;
 public static final int HEIGHT = 800;
 GamePanel panel;
 public SpaceInvaders()
 //create frame
 JFrame demoFrame = new JFrame("Space Invaders");
 demoFrame.setBounds(0,0,WIDTH,HEIGHT);
 demoFrame.setVisible(true);
 demoFrame.setResizable(false);
 demoFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
 demoFrame.setBackground(Color.BLACK);
 //create panel
 GamePanel panel = new GamePanel(this);
 panel.setBackground(Color.BLACK);
 demoFrame.add(panel);
 //add buttons
 JButton startButton = new JButton("Start");
 startButton.setEnabled(true);
 JButton stopButton = new JButton("Stop");
 stopButton.setEnabled(true);
..... import java.awt.*;
import javax.swing.*;
import java.awt.Image;
import java.awt.event.KeyListener;
import java.awt.event.KeyEvent;
import java.awt.image.BufferStrategy;
import javax.swing.*;
import java.awt.event.*;
public class GamePanel extends JComponent implements KeyListener, ActionListener
 SpaceInvaders game;
 static Player player1;
 Bullets bullet;
 private BufferStrategy strategy;
 static int alienNum = 36;
 static int alienRow = 6;
 static int alienCol = 6;
 static Aliens[][] aliens;
 static Bullets[] bullets;
 private Timer timer;
 int bulletNum=0;
 public GamePanel(SpaceInvaders game)
 this.game = game;
 player1 = new Player(this);
 player1.start();
 aliens = new Aliens[alienRow][alienCol];
 for(int i=0; i<alienRow; i++)
 for(int j=0; j<alienCol; j++){
 aliens[i][j] = new Aliens(this);
 aliens[i][j].setX(i*50);
 aliens[i][j].setY(j*50);
 bullets = new Bullets[5];
 bullets[0]=new Bullets(this);
 timer=new Timer(500, this);
 //timer.setDelay(500);
 timer.start();
 this.setFocusable(true);
 this.addKeyListener(this);
 public void paintComponent(Graphics g)
 super.paintComponent(g);
 Image pic1 = player1.getImage();
...........

I changed the GamePanel class to extend JPanel instead of extend JComponent and it works now. Didnt realise JComponent had no paint functions.. Thanks for your help.
import java.awt.image.BufferStrategy;
import javax.swing.*;
import java.awt.event.*;
public class GamePanel extends JPanel implements KeyListener, ActionListener
 SpaceInvaders game;
 static Player player1;
 Bullets bullet;
 private BufferStrategy strategy;

Since version CS6 (also CC) is not using the "change color" white border

Hello,
send you then added a small bug, but the user can very fooled.
Since version CS6 (also CC) is not using the "change color" white border
bounded by the selected color. In CS5 it worked correctly.
More video from here: http://screenr.com/xZxH
Regards
Aleš Ulrych

Hello Mr. Zimmermann,
thanks for the response. I put it here so that this is a small mistake and knew someday be repaired. I personally find this more troubling issue that I have reported in version CS6: http://forums.adobe.com/thread/1246261?tstart=30
But I still hope it will be corrected in the future.
Yours
Aleš Ulrych

Xperia z2 color WHITE it is true it easily stain the color??

I have z1 color black. But I planning to buy xperia z2 color white. But i see some video in YouTube it say it easily stain the color white?? It is true?
Solved!
Go to Solution.

[email protected] wrote:
I have z1 color black. But I planning to buy xperia z2 color white. But i see some video in YouTube it say it easily stain the color white?? It is true?
It definitely true. A little wash should remove the stain. The only reason this happens is because of the injection molding used around the aluminium frame.
It happens on all the devices but it's not noticeable on the darker colours.

My color white is not white its tan?

I just got adobe photoshop CS3 Extended and when i open a new page or anything the color white looks like a tan color....it says its white #ffffff, but shows up as a tan color in my window??? when i save it and look at in another program its the color white...
How do i fix this< sorry im new to photoshop and just started learning it.

Try some of these fixes posted by participant ds store.
https://discussions.apple.com/docs/DOC-3353

Setting JScrollPane background color.

Does anybody know how to set what color appears in the background of a JScrollPane when the Component in the pane is smaller than the pane itself?
In particular, I have a JTable in a JScrollPane, and when the pane is bigger than the table, the gray default background of the viewport looks weird behind the white background of the table.
MyScrollPane.setBackground() doesn't do it, neither does MyScrollPane.getViewport().setBackground().
Thanks in advance,
Jason

This might explain some things, hope it helps...
it's a cut and paste from the JScrollpane source....
A common operation to want to do is to set the background color that will be used if the main viewport view is smaller than the viewport, or is not opaque. This can be accomplished by setting the background color
of the viewport, via scrollPane.getViewport().setBackground().The reason for setting the color of the viewport and not the scrollpane is that by default JViewport is opaque which, among other things, means it will completely fill in its background using its background color. Therefore when <code>JScrollPane</code> draws its background the viewport will usually draw over it.

JScrollPane - setting colors of scrollbar arrows

I have vertical and horizontal JScrollPane's. To set the color of the arrows for the vertical JScrollPane, the following (suggested by ldafinca in thread 125581) works fine.
scrollPane.getVerticalScrollBar().getComponent(0).setBackground(new Color(...));
scrollPane.getVerticalScrollBar().getComponent(1).setBackground(new Color(...));
however, the same is not true for the horizontal JScrollPane. The following does not work (ie. changing getVertical... to getHorizontal...)
scrollPane.getHorizontalScrollBar().getComponent(0).setBackground(new Color(...));
scrollPane.getHorizontalScrollBar().getComponent(1).setBackground(new Color(...));
Is there an equivalent for horizontal JScrollPane ?

I submitted this qusetion and I am retracting it. the code supplied above for horizontal JScrollPane DOES work. I have 2 different horizontal JScrollPane's and the simple one does work. The source of my problem must be something else that I am doing in my code.
Sorry for wasting people's time.

JScrollPane.setBackground(Color.white);

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