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894天前package s0402模拟时钟; |
import java.awt.Color; |
import java.awt.Font; |
import java.awt.Graphics; |
import java.text.SimpleDateFormat; |
import java.util.Calendar; |
import java.util.Date; |
import javax.swing.JFrame; |
import 工具类.ThreadSleep; |
public class Copy extends JFrame implements Runnable { |
final int Xpoint = 180; |
final int Ypoint = 180; |
final int R = 80; |
int xHour = 0, yHour = 0, xSecond = 0, ySecond = 0, xMin = 0, yMin = 0; |
public Copy() { |
setFont(new Font("仿宋体", Font.BOLD, 24)); // 设置时钟的显示字体 |
new Thread(this).start(); |
setLocationRelativeTo(null); // 设置窗体出现位置居中 |
setSize(360, 360); // 设置窗口尺寸 |
setVisible(true); // 窗口可视 |
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); // 关闭窗口时退出程序 |
} |
public void run() { |
while (true) { |
repaint(); // 调用paint方法重绘界面 |
ThreadSleep.threadSleep(1000); |
} |
} |
public void paint(Graphics g) { |
Calendar now = Calendar.getInstance(); // 实例化日历对象 |
now.setTime(new Date());// new Date()为获取当前系统时间 |
// 得到具体的时间,以string 格式保存在timeInfo中************************ |
int hour = now.get(Calendar.HOUR_OF_DAY); // 得到小时数 |
int minute = now.get(Calendar.MINUTE); // 得到分数 |
int second = now.get(Calendar.SECOND); // 得到秒数 |
String date=new SimpleDateFormat("yyyy年mm月dd日").format(new Date());//得到日期,保存在date中 |
String time=new SimpleDateFormat("hh:mm:ss").format(new Date()); //得到时间,保存在time中 |
|
// 得到具体的时间,以string 格式保存在timeInfo中************************ |
g.setColor(Color.WHITE); // 设置当前颜色为白色,为了让黑点显示出来 |
g.fillRect(0, 0, this.getWidth(), this.getHeight()); // 填充背景色为白色,相当于线程启动一次填充一次，才不会让上次所执行的操作留下残余 |
g.setColor(Color.green); // 设置当前时间颜色为绿色 |
g.drawString(date,20, 60);// 显示年月日字符串 |
g.drawString(time, 130, 340); // 显示时分秒字符串 |
// 画出时钟界面 |
for (int i = 0, num = 0; i < 360; i += 6)// i为度数,每一秒有6° |
{ |
double alfa = Math.toRadians(i); // 获得弧度数 |
int xPos = Xpoint + (int) (R * Math.sin(alfa)); |
int yPos = Ypoint - (int) (R * Math.cos(alfa)); |
if (i % 90 == 0) { |
if (num == 0) { |
num = 12; |
g.setColor(Color.RED); |
g.drawString("" + num, xPos - 5, yPos + 3); |
num = 3; |
} else if (num == 3) { |
g.setColor(Color.BLUE); |
g.drawString("" + num, xPos - 5, yPos + 3); |
num = 6; |
} else if (num == 6) { |
g.setColor(Color.GRAY); |
g.drawString("" + num, xPos - 5, yPos + 3); |
num = 9; |
} else { |
g.setColor(Color.MAGENTA); |
g.drawString("" + num, xPos - 5, yPos + 3); |
} |
} else { |
g.setColor(Color.GRAY); |
g.drawString(".", xPos, yPos); |
} |
} |
g.setColor(Color.black); |
g.fillOval(Xpoint - 4, Ypoint - 4, 8, 8); |
// 画秒针 |
xSecond = (int) (Xpoint + (R - 10) |
* Math.sin(second * (2 * Math.PI / 60))); |
ySecond = (int) (Ypoint - (R - 10) |
* Math.cos(second * (2 * Math.PI / 60))); |
g.setColor(Color.red); |
g.drawLine(Xpoint, Ypoint, xSecond, ySecond); |
// 画分针 |
xMin = (int) (Xpoint + (R - 35) |
* Math.sin((minute + second / 60) * (2 * Math.PI / 60))); |
yMin = (int) (Ypoint - (R - 35) |
* Math.cos((minute + second / 60) * (2 * Math.PI / 60))); |
g.setColor(Color.BLUE); |
g.drawLine(Xpoint, Ypoint, xMin, yMin); |
// 画时针 |
xHour = (int) (Xpoint + (R - 50) |
* Math.sin((hour + minute / 60 + second / 60 / 60) |
* (2 * Math.PI / 12))); |
yHour = (int) (Ypoint - (R - 50) |
* Math.cos((hour + minute / 60 + second / 60 / 60) |
* (2 * Math.PI / 12))); |
g.setColor(Color.BLACK); |
g.drawLine(Xpoint, Ypoint, xHour, yHour); |
} |
public static void main(String[] args) { |
new Copy(); |
} |
} |
