あなたのUIトグルの間の遅延。ここに簡単な例があります。
package app;
import java.awt.BorderLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.BorderFactory;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.SwingUtilities;
import javax.swing.Timer;
public class App extends JFrame
{
private JLabel label;
private Timer timer;
private int counter = 10; // the duration
private int delay = 1000; // every 1 second
private static final long serialVersionUID = 1L;
public App()
{
super("App");
setDefaultCloseOperation(EXIT_ON_CLOSE);
label = new JLabel("Wait for " + counter + " sec", JLabel.CENTER);
JPanel contentPane = (JPanel) getContentPane();
contentPane.add(label, BorderLayout.CENTER);
contentPane.setBorder(BorderFactory.createEmptyBorder(5, 5, 5, 5));
pack();
ActionListener action = new ActionListener()
{
@Override
public void actionPerformed(ActionEvent event)
{
if(counter == 0)
{
timer.stop();
label.setText("The time is up!");
}
else
{
label.setText("Wait for " + counter + " sec");
counter--;
}
}
};
timer = new Timer(delay, action);
timer.setInitialDelay(0);
timer.start();
setVisible(true);
}
public static void main(String[] args)
{
SwingUtilities.invokeLater(new Runnable()
{
@Override
public void run()
{
new App();
}
});
}
}
このシンプルなタイマーは、カウンタ値をデクリメントした後、毎秒及び更新ラベルをActionListenerの引き金となります。
[スイングタイマーの使い方](https://docs.oracle.com/javase/tutorial/uiswing/misc/timer.html) – MadProgrammer