Unable to call method repaint()

Question

A problem occured to me when I tried to call the method repaint() within an event method. Here is a simple applet, showing a button with an attached ActionListener.
On pressing the button, an array with the digits from 1 to 0 should be shown at a starting position 50,100. This is done with the help of a boolean variable initialized at false. When the button is clicked the System.out.println method throws the "Action" string at the console, meaning that b has changed its value to true, but the next line doesn't seem to be executing. The array is displayed when an occasional repaint is called by the GUI thread (resizing the applet, hiding the applet behind a window and then showing it back again or minimizing and maximizing the applet).
import java.awt.*;
import java.awt.event.*;
import java.applet.*;
public class ActionEventsTest extends Applet {
int[] a={1,2,3,4,5,6,7,8,9,0};
boolean b=false;
public void init() {
add(new Button("Check")     {
addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent ev)     {
b=true;
System.out.println("Action");
repaint();
public void paint(Graphics g) {
if(b)
for(int i=0;i<a.length;i++)
g.drawString(""+a,50+i*5,100);

Answer 1

No, I think it's executing. You're probably just doing it wrong. Try something else. For instance, try drawing a big x through your applet (2 lines, 1 going from 0,0 to width,height, the other going from width, 0 to 0, height)