Problem displaying a graph

Question

I am trying to display a line graph from a given arrays of integers, which are stores as x and y points consecutively. (ie. int values[] = {x0,y0,x1,y1,etc...})
However, after I compiled and run the code, no graph is displayed. What's wrong?...
import java.awt.*;
import javax.swing.*;
public class GraphicTest extends JPanel
     private int values[]={2,5,6,34,12,28,18,24,22,26,25,16,30,41,34,7,39,18};
     public void paintGraph(Graphics aGraphics, int values[])
          int x = values[0];
          int y = values[1];
          aGraphics.drawRect(x-2,y-2,x+2,y+2);
          for (int i=0; i<values.length; i+=2)
               aGraphics.drawLine(x,y,values,values[i+1]);
               x = values[i];
               y = values[i+1];
               aGraphics.drawRect(x-2,y-2,x+2,y+2);
     public static void main (String args[])
          JFrame frame = new JFrame();
          frame.setLocation(100,100);
          frame.setSize(400,300);
          frame.getContentPane().add(new GraphicTest());
          frame.show();

Answer 1

This is a very nice piece of code, but you do have to call it. Override JPanel's paintComponent method, so that it calls paintGraph(), and your're done.