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Java Discussion Thread
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Views: 32953

May 2nd, 2006

help with setting background color!!!

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Hi Friends,

i made a window with a Panel and painted a text on it.
Now i want to set a background color for the panel but it does not reflect in the window..

i am posting the code here..
Please let me know if anything is wrong with the code!!

Thanks a lot!!

CODE..!!!

Java Syntax (Toggle Plain Text)
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
 
class MyPan extends JPanel
{
public void paintComponent(Graphics g)
{
g.drawString("Hello India",50,50);
}
}
 
class MyWin extends JFrame
{
MyWin()
{
MyPan Pan=new MyPan();
Pan.setBackground(Color.DARK_GRAY);
 
Container Con=getContentPane();
Con.add(Pan);
 
setTitle("Window With Panel");
setLocation(100,100);
setSize(300,300);
setResizable(false);
setDefaultCloseOperation(EXIT_ON_CLOSE);
}
}
 
class WinPanel
{
public static void main(String arg[])
{
MyWin w=new MyWin();
w.setVisible(true);
}
}
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
 
class MyPan extends JPanel
{
public void paintComponent(Graphics g)
{
g.drawString("Hello India",50,50);
}
}
 
class MyWin extends JFrame
{
MyWin()
{
MyPan Pan=new MyPan();
Pan.setBackground(Color.DARK_GRAY);
 
Container Con=getContentPane();
Con.add(Pan);
 
setTitle("Window With Panel");
setLocation(100,100);
setSize(300,300);
setResizable(false);
setDefaultCloseOperation(EXIT_ON_CLOSE);
}
}
 
class WinPanel
{
public static void main(String arg[])
{
MyWin w=new MyWin();
w.setVisible(true);
}
}

Last edited by cscgal; May 5th, 2006 at 9:59 pm.

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psodhi

Reputation Points: 10

Solved Threads: 1

Newbie Poster

Offline

11 posts
since Mar 2006

Permalink

May 2nd, 2006

Re: help with setting background color!!!

The problem is in the paintComponent method of your MyPan class.
It should look like this:

Java Syntax (Toggle Plain Text)
public void paintComponent(Graphics g)
{
	super.paintComponent(g);
	g.drawString("Hello India",50,50);
}
public void paintComponent(Graphics g)
{
	super.paintComponent(g);
	g.drawString("Hello India",50,50);
}

:cheesy:

apcxpc

Reputation Points: 10

Solved Threads: 0

Junior Poster in Training

Offline

55 posts
since Sep 2004

Permalink

May 2nd, 2006

Re: help with setting background color!!!

You should call setBackground() on the container rather than the frame.
Conn.setBackground

server_crash

Reputation Points: 113

Solved Threads: 19

Postaholic

Offline

2,108 posts
since Jun 2004

Permalink

May 5th, 2006

Re: help with setting background color!!!

Thanks a lot apcxpc

Your advice helped me a lot..
today i read the same in a book too!!
Thanks again!!

psodhi

Reputation Points: 10

Solved Threads: 1

Newbie Poster

Offline

11 posts
since Mar 2006

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