Graphics in GUI?

[Ashi_Mashi2]

I want to make a Graphing calculator..so, I should somehow implement a Graphics object into GUI. Does anyone have any ideas?
I researched a little, found a paintComponent method....dont know how it works or how to implement it...thanks a lot

[Ashi_Mashi2]

ok..can someone plz tell me what's wrong with this code?..thx

code:

import java.awt.*; import javax.swing.*; public class GraphTest {     public static void main (String[] args)     {         new GraphTest ();     }     public GraphTest ()     {         JFrame f = new JFrame ("Grpahing Test");         f.setDefaultCloseOperation (3);         Container c = f.getContentPane ();         c.setLayout (new BorderLayout ());         JPanel p = new JPanel ();         p.add (new PaintComponenet ());         c.add (p, BorderLayout.NORTH);         f.setSize (200, 200);         f.show ();     }     private class PaintComponenet extends JComponent     {         public void paintComponent (Graphics g)         {             g.drawOval (50, 50, 100, 100);         }     } }

[rizzix]

extend java.awt.Canvas and ovrride paint(Graphics g) and not paintComponent(Graphics g)

[Ashi_Mashi2]

thanks...do you mean like this:

code:

private class PaintComponenet extends java.awt.Canvas     {         public void paint (Graphics g)         {             g.drawOval (50, 50, 100, 100);         }     }

it still does not work

[rizzix]

add the component to BorderLayout.CENTER
Also, do not add unnecessary containers (in this case the extra JPanel).