while loop ignore the event listener
- by Tamer
so when i run this code to try to change the background the GUI crashes and gets stuck in a infinite while loop ignoring the event listeners. here is the code:
`private Panel getPanel1() {
if (panel1 == null) {
panel1 = new Panel();
panel1.setLayout(new GridBagLayout());
while(frame.isVisible()){
panel1.addMouseListener(new java.awt.event.MouseAdapter() {
public void mouseClicked(java.awt.event.MouseEvent e) {
frame.setVisible(false);
}
});
int r = (int) (Math.random()*255);
int g = (int) (Math.random()*255);
int b = (int) (Math.random()*255);
Color c = new Color(r, g, b);
panel1.setBackground(c);
try {
Thread.sleep(4000);
} catch (InterruptedException e1) {
e1.printStackTrace();
}
panel1.addMouseListener(new java.awt.event.MouseAdapter() {
public void mouseClicked(java.awt.event.MouseEvent e) {
/*panel1.setVisible(false);
frame.setVisible(false);*/
System.exit(0);
}
});
}
}
return panel1;
}`
instead of exiting the loop of terminating the program or event changing the background it just displays the panel and does nothing else and i have to force it to quit. what should i do?
