time.java

好的超市源码供大家下载

package view.com.systime;

import java.awt.FlowLayout;
import java.text.SimpleDateFormat;
import java.util.Date;

import javax.swing.JFrame;
import javax.swing.JLabel;

/**
 * 
 * @author linfeng
 * 获得系统当前时间
 */
public class Time implements Runnable {
  
  /**
   * jl 标签
   * sdf SimpleDateFormat类型
   */
  private static JLabel jl;

  private SimpleDateFormat sdf = new SimpleDateFormat("HH:mm:ss");

  public Time(JLabel jl) {
    this.jl = jl;
    Thread th = new Thread(this);
    // th.setDaemon(true);
    th.start();
    // this.start();
  }

  public void run() {
    while (true) {
      this.jl.setText("系统时间：" + sdf.format(new Date()));
      try {
        Thread.sleep(1000);
      } catch (InterruptedException e) {
        // TODO 自动生成 catch 块
        e.printStackTrace();
      }
    }
  }
  // 测试
  // public static void main(String[] args) {
  // JFrame f = new JFrame();
  // f.setSize(200, 200);
  // JLabel lbl = new JLabel();
  // f.setLayout(new FlowLayout());
  // f.getContentPane().add(lbl);
  // new Time(lbl);
  // f.setVisible(true);
  // }
}