HI
ive been trying to do some java program and when ive tried to run this program which, ive had 3 errors saying cannot resolve symbol for 'DrawFrame/DrawPanel' im not sure wat the issue here is, the program is as follows:

import java.awt.*;
import java.awt.geom.*;
import javax.swing.*;

public class Drawing extends DrawPanel
{
public static void main(final String[] args)
{
DrawFrame frame = new DrawFrame("Drawing");

Drawing drawing = new Drawing();

frame.add(drawing);
frame.pack();
frame.centreOnScreen();
frame.setVisible(true);
}

public Drawing()
{
}
public Drawing(final int w, final int h)
{
super(w,h);
}

public void paint(final Graphics g)
{
Graphics2D g2d = (Graphics2D)g;
}
}


it would be much appreciated if you could help
thnx
yarlini

hi yarlini

your problem lies on the following lines:

DrawFrame frame = new DrawFrame("Drawing");

and

public class Drawing extends DrawPanel

bcos these clases are neither in swing nor classes that you created.
So the compiler says it is not able to recognize the classes

I think this is what you are looking at:
[HTML]
import java.awt.*;
import java.awt.geom.*;
import javax.swing.*;

class Drawing extends JPanel
{
Drawing()
{
setBackground(Color.cyan);
setPreferredSize(new Dimension(50,50));
}
}

class Main
{
public static void main(final String[] args)
{
JFrame frame = new JFrame("Drawing");
frame.setLayout(new FlowLayout());
frame.setSize(300,300);
Drawing drawing = new Drawing();
Drawing drawing1 = new Drawing();

frame.add(drawing);
frame.add(drawing1);

frame.setVisible(true);
frame.repaint();
}
}
[/HTML]
I have modified you code a bit,

compile the program as
javac Main.java

run the program as
java Main

thnx for the code when i compiled and ran the program i received an error:

"Exception in thread 'main' java.lang.Error: Do not use javax.swing.JFrame.SetLayout() use javax.swing.JFrame.getContentPane().setLayout() instead at javax.swing.JFrame.createRootPaneException(Unknown Source) at Javax.swing.JFrame.setLayout(Unknown Source) at Main.main(Main.java:19)

and this kept running and didnt terminate

You have an older version that's why.

try this;