[英]Auto Updating Timer in JOptionPane in Java
我已經搜索過,但是找不到適合我需要的任何東西。 我正在做一個計時器,並且是Java的初學者。 我已經制作了計時器,並且可以使用,但是我想在窗戶上說剩余時間。 這是我所擁有的:
package simpletimer;
import javax.swing.JOptionPane;
public class SimpleTimer {
public static void main(String[] args) throws InterruptedException {
JOptionPane.showMessageDialog(null, "Simple Timer By - -","Simple Timer", JOptionPane.INFORMATION_MESSAGE);
double h = Integer.parseInt(JOptionPane.showInputDialog(null,"Hours:","Simple Timer",JOptionPane.PLAIN_MESSAGE));
double m = Integer.parseInt(JOptionPane.showInputDialog(null,"Minutes:","Simple Timer",JOptionPane.PLAIN_MESSAGE));
double s = Integer.parseInt(JOptionPane.showInputDialog(null,"Seconds:","Simple Timer",JOptionPane.PLAIN_MESSAGE));
String Time = "Ok! The Simple Timer will go off in " + h + "h " + m + "m " + s + "s.";
String[] Option1 = {"Start Timer"};
JOptionPane.showOptionDialog(null, Time,"Simple Timer",JOptionPane.DEFAULT_OPTION,JOptionPane.INFORMATION_MESSAGE,null,Option1,"Start Timer");
while(s > 0){
Thread.sleep(1000);
s = s - 1;
}
while(m > 0){
m = m - 1;
s = s + 59;
Thread.sleep(60000);
}
while(h > 0){
h = h - 1;
m = m + 59;
s = s + 59;
Thread.sleep(3600000);
}
do{
JOptionPane.showMessageDialog(null, "Simple Timer Done!", "Simple Timer", JOptionPane.INFORMATION_MESSAGE);
}while(h < 1 && m < 1 && s < 1);
}
}
我解決了自己的問題。 我通過使用JFrame做到了這一點。 這是一個示例:
JFrame Main = new JFrame();
JLabel Label = new JLabel();
Main.add(Label);
Main.setVisible(true);
Main.setResizable(false);
Main.setBounds(0, 0, 480, 200);
Main.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
Label.setText("Time Left: " + h + ":" + m + ":" + s + ".");
Label.setFont(Label.getFont().deriveFont(48f));
while(s > 0){
s = (short) (s - 1);
Label.setText("Time Left: " + h + ":" + m + ":" + s + ".");
Thread.sleep(1000);
}
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