代码如下:
import javax.swing.*; import java.awt.*; import java.util.Date; public class Test1 { public static void main(String[] args) { JFrame frame = new JFrame("我的窗口"); frame.setBounds(200,200,400,400); JTextField textField=new JTextField(); frame.add(textField); new Thread(new Runnable() { @Override public void run() { while(true){ try { Thread.sleep(1000); } catch (InterruptedException e) { e.printStackTrace(); } Date date=new Date(); textField.setText(date.getHours()+":"+date.getMinutes()+":"+date.getSeconds()); textField.setFont(new Font("楷体",Font.BOLD,20)); } } }).start(); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); frame.setVisible(true); } }
运行结果: