因此,当我运行此代码以尝试更改背景时,GUI 崩溃并陷入无限循环,而忽略了事件侦听器。这是代码:
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;
}
而不是退出终止程序或事件更改背景的循环,它只是显示面板并且什么都不做,我必须强制它退出。我该怎么办?