java Swing數字時鐘

雖然說如今swing已經逐漸淡出你們的視野 但是忽然接到一個swing的界面 你會怎麼辦。。一個簡單的時鐘代碼 數字 時鐘+指針時鐘，但願給須要用到的人提供點便捷。

不整些沒用的直接上代碼，

數字時鐘

import java.awt.Color;
import java.awt.Font;
import java.text.SimpleDateFormat;
import java.util.Date;
import javax.swing.JFrame;
import javax.swing.JLabel;

public class TimeDemo1 extends JFrame implements Runnable{
 
 public static  JLabel lblTime; 
 public static void main(String[] args) {
  
   TimeDemo1 cd = new TimeDemo1();
   lblTime = new JLabel();
   cd.setLayout(null);
   cd.setBounds(200, 200, 280, 100);
   lblTime.setBounds(0, 0, 280, 80);
   lblTime.setFont(new Font("Times New Roman",Font.BOLD,60));
   lblTime.setBackground(Color.WHITE);
   lblTime.setForeground(Color.red);
   cd.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
   Thread t = new Thread(cd);
   t.start();
   cd.add(lblTime);
   cd.setTitle("數字時鐘");
   cd.setVisible(true);
}

  public void run() {
  
   while(true){
    Date d = new Date();
    SimpleDateFormat sdf = new SimpleDateFormat("HH:mm:ss");
    String s = sdf.format(d);
    lblTime.setText(s);
    try {
     Thread.sleep(1000);
    } catch (InterruptedException e) {
     e.printStackTrace();   }
    }

  }
}

指針時鐘

 

import java.awt.BasicStroke;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.RenderingHints;
import java.awt.geom.Ellipse2D;
import java.awt.geom.Line2D;
import java.util.Date;

import javax.swing.JFrame;
import javax.swing.JPanel;

public class TimeDemo extends JFrame {
 private JPanel pan;
 private double r1 = 160, r2 = 165, rm1 = 158, rm2 = 167, hr = 100,
   mr = 130, sr = 167;

 public TimeDemo() {
  super("Time demo");
  this.setBounds(200, 200, 410, 410);
  getMinLab();

  pan = new MyPanel();
  this.add(pan);

  this.setVisible(true);
  this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

  MyThread th = new MyThread();
  th.setDaemon(true);
  th.start();

 }

 class MyPanel extends JPanel {
  // 實現錶盤的繪製
  public void paint(Graphics g) {
   g.clearRect(0, 0, this.getWidth(), this.getHeight());
   Graphics2D g2 = (Graphics2D) g;

   BasicStroke bs = null;

   // 打開抗鋸齒
   g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING,
     RenderingHints.VALUE_ANTIALIAS_ON);
   Line2D line[] = getMinLab();
   for (int i = 0; i < line.length; i++) {
    bs = new BasicStroke(2, BasicStroke.CAP_ROUND,
      BasicStroke.JOIN_ROUND);
    g2.setStroke(bs);
    if (i % 5 == 0) {
     bs = new BasicStroke(4, BasicStroke.CAP_ROUND,
       BasicStroke.JOIN_ROUND);
     g2.setStroke(bs);

    }
    g2.draw(line[i]);
    // 畫鐘面上顯示的數字 
//               g2.drawString("12", xCenter - 6, yCenter - radius + 12); 
//               g2.drawString("3", xCenter + radius - 12, yCenter + 4); 
//               g2.drawString("6", xCenter - 4, yCenter + radius - 8); 
//               g2.drawString("9", xCenter - radius + 4, yCenter + 6); 

   }

   // 計算時針 雖然使用到一些過期的方法，可是在jdk6的環境下目前還能夠使用
   Date date = new Date();
   int s = date.getSeconds();

   double m = date.getMinutes() + s / 60.0;

   double h = date.getHours() + m / 60.0;
   System.out.println(h);

   double hy = Math.sin(Math.PI / 6 * (h % 12 - 3)) * hr + 200;
   double hx = Math.cos(Math.PI / 6 * (h % 12 - 3)) * hr + 200;
   bs = new BasicStroke(6, BasicStroke.CAP_ROUND,
     BasicStroke.JOIN_ROUND);
   g2.setStroke(bs);
   Line2D.Double hline = new Line2D.Double(200, 200, hx, hy);
   g2.draw(hline);
   // 計算分針
   double my = Math.sin(Math.PI / 30 * (m - 15)) * mr + 200;
   double mx = Math.cos(Math.PI / 30 * (m - 15)) * mr + 200;
   bs = new BasicStroke(4, BasicStroke.CAP_ROUND,
     BasicStroke.JOIN_ROUND);
   g2.setStroke(bs);
   Line2D.Double mline = new Line2D.Double(200, 200, mx, my);
   g2.draw(mline);
   // 計算秒針
   double sy = Math.sin(Math.PI / 30 * (s - 15)) * sr + 200;
   double sx = Math.cos(Math.PI / 30 * (s - 15)) * sr + 200;
   bs = new BasicStroke(2, BasicStroke.CAP_ROUND,
     BasicStroke.JOIN_ROUND);
   g2.setStroke(bs);
   Line2D.Double sline = new Line2D.Double(200, 200, sx, sy);
   g2.draw(sline);

   // 畫表盤

   Ellipse2D.Double el = new Ellipse2D.Double(10, 10, 360, 360);
   g2.draw(el);
  }
 }

 // 計算錶盤上的刻度
 public Line2D[] getMinLab() {
  Line2D[] lineM = new Line2D[60];

  for (int i = 0; i < lineM.length; i++) {
   double x1, y1, x2, y2;
   double b1 = Math.sin(Math.PI / 30 * i);
   double b2 = Math.cos(Math.PI / 30 * i);
   if (i % 5 != 0) {
    y1 = b1 * r1 + 200;
    y2 = b1 * r2 + 200;
    x1 = b2 * r1 + 200;
    x2 = b2 * r2 + 200;
   } else {
    y1 = b1 * rm1 + 200;
    y2 = b1 * rm2 + 200;
    x1 = b2 * rm1 + 200;
    x2 = b2 * rm2 + 200;
   }

   lineM[i] = new Line2D.Double(x1, y1, x2, y2);

  }

  return lineM;
 }

 // 實現走動的線程
 class MyThread extends Thread {
  public void run() {
   while (true) {
    pan.repaint();
    try {
     this.sleep(1000);
    } catch (InterruptedException e) {
     // TODO Auto-generated catch block
     e.printStackTrace();
    }
   }
  }
 }

 public static void main(String[] args) {   // 執行   new TimeDemo();  } }