java表盘制作代码.doc

代码实现:public class Date public Date(int year, int month) int cols = 1; int days = 1; for(int i=1; iyear; i+) if(i%100!=0) & (i%4=0) | (i%400=0) days += 366; else days += 365; for(int j=1; jmonth; j+) switch(j) case 1: case 3: case 5: case 7: case 8: case 10: case 12: days += 31; break; case 2: if(year%100!=0) & (year%4=0) | (year%400=0) days += 29; else days += 28; break; default: days += 30; break; cols = days % 7; printDate(year, month, cols); public void printDate(int year, int month, int cols) int days = 0; int i = year; int j = month; System.out.println(i+年); System.out.println(t+i+年 +j+月 +cols=+cols); switch(j) case 1: case 3:case 5: case 7: case 8: case 10: case 12: days = 31; break; case 2: if(i%100!=0) & (i%4=0) | (i%400=0) days = 29; else days = 28; break; default: days = 30; break; System.out.println(t日 + t一 + t二 + t三 + t四 + t五 + t六); for(int m=1; m=cols; m+) System.out.print(t); for(int k=1; k=7) System.out.println(); cols = 0; System.out.println(); public static void main(String args) Date d1 = new Date(2014, 10); /输出2014年10月日历 运行截图:表盘制作import javax.swing.*;import java.awt.*;import java.io.*;import java.util.Calendar;import java.awt.event.*;import java.awt.image.BufferedImage;public class ThreadClock extends JFrame implements Runnable private volatile BufferedImage boardDrawing;/volatile是程度较轻的 synchronized private volatile BufferedImage boardDisplaying; public ThreadClock() setTitle(ThreadClock); setSize(300, 300); setLocation(450,200); setDefaultCloseOperation(DISPOSE_ON_CLOSE); setVisible(true); boardDrawing = new BufferedImage(this.getWidth(), this.getHeight(), BufferedImage.TYPE_INT_RGB); boardDisplaying = new BufferedImage(this.getWidth(), this.getHeight(), BufferedImage.TYPE_INT_RGB); public void paint(Graphics g) g.drawImage(boardDisplaying, 0, 0, null); Override public void run() /本来我这里的循环条件为true，不过测试运行了几次之后发现这个线程并没有被关闭 /内存使用变成了3GB+，任务管理器中满是javaw.exe /后来用this.isShowing()来判断一下，终于可以顺利结束进程了 while(this.isShowing() Graphics g = boardDrawing.getGraphics(); g.setColor(Color.WHITE); g.clearRect(0, 0, boardDrawing.getWidth(), boardDrawing.getHeight();/清除图形 g.fillRect(0, 0, boardDrawing.getWidth(), boardDrawing.getHeight();/填充背景色为白色 /画图 /画出clock的表盘及数字 g.setColor(Color.BLUE); g.drawOval(100, 100, 100, 100); g.drawString(12, 145, 115); g.drawString(6, 145, 195); g.drawString(9, 105, 155); g.drawString(3, 190, 155); /get Instance Time得到当前时间 Calendar c=Calendar.getInstance(); int week=c.get(Calendar.DAY_OF_WEEK); int month=c.get(Calendar.MONTH); int day=c.get(Calendar.DATE); int hour=c.get(Calendar.HOUR_OF_DAY); int minute=c.get(Calendar.MINUTE); int second=c.get(Calendar.SECOND); int year=c.get(Calendar.YEAR); /画出时针分针秒针 DrawHands(g, second/60.0, 40); DrawHands(g, minute/60.0, 32); DrawHands(g, (hour)/12.0, 25); String weekName=星期日,星期一,星期二,星期三,星期四,星期五,星期六; String monthName=一月,二月,三月,四月,五月,六月,七月,八月,九月,十月,十一月,十二月; /画出显示时间的字符串 String timeString=String.format(%s %s - -:-:- %s, weekNameweek,monthNamemonth,day,hour,minute,second,year); g.drawString(timeString, 75, 215); g.drawString(neolone, 240, 280); / 切换前景与背景工作区 BufferedImage tmp = boardDisplaying; boardDisplaying = boardDrawing; boardDrawing = tmp; this.repaint(); try Thread.sleep(500); catch (Exception e) System.out.println(e); /用g画出某根针（时分秒只是长度不同），percent表示从十二点到某指针现在的位置占整个圆周的百分比，length表示长度 private void DrawHands(Graphics g,Double percent,int length) double degree=360*percent; int x=(int)(150+Math.cos(2*Math.PI*(90-degree)/360)*length); int y=(int)(150-Math.sin(2*Math.PI*(90-degr