java表盤制作代碼

1、代碼實現(xiàn):public class Date public Date(int year, int month) int cols = 1; int days = 1; for(int i=1; i<year; i+) if(i%100!=0) && (i%4=0) | (i%400=0) days += 366; else days += 365; for(int j=1; j<month; j+) switch(j) case 1: case 3: case 5: case 7: case 8: case 10: case 12: days += 31; brea

2、k; 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&

3、quot;); 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; Sy

4、stem.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<=days; k+) System.out.print("t"+k); cols +; if(cols>=7) System.out.prin

5、tln(""); cols = 0; System.out.println(""); public static void main(String args) Date d1 = new Date(2014, 10); /輸出2014年10月日歷 運行截圖:表盤制作import javax.swing.*;import java.awt.*;import java.io.*;import java.util.Calendar;import java.awt.event.*;import java.awt.image.BufferedImage;publi

6、c class ThreadClock extends JFrame implements Runnable private volatile BufferedImage boardDrawing;/volatile是程度較輕的 synchronized private volatile BufferedImage boardDisplaying; public ThreadClock() setTitle("ThreadClock"); setSize(300, 300); setLocation(450,200); setDefaultCloseOperation(DI

7、SPOSE_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, nul

8、l); Override public void run() /本來我這里的循環(huán)條件為true，不過測試運行了幾次之后發(fā)現(xiàn)這個線程并沒有被關(guān)閉 /內(nèi)存使用變成了3GB+，任務(wù)管理器中滿是javaw.exe /后來用this.isShowing()來判斷一下，終于可以順利結(jié)束進程了 while(this.isShowing() Graphics g = boardDrawing.getGraphics(); g.setColor(Color.WHITE); g.clearRect(0, 0, boardDrawing.getWidth(), boardDrawing.getHeight();/清

9、除圖形 g.fillRect(0, 0, boardDrawing.getWidth(), boardDrawing.getHeight();/填充背景色為白色 /畫圖 /畫出clock的表盤及數(shù)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"

10、, 190, 155); /get Instance Time得到當前時間 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(Cal

11、endar.YEAR); /畫出時針分針秒針 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&

12、quot;,"四月","五月","六月","七月","八月","九月","十月","十一月","十二月" /畫出顯示時間的字符串 String timeString=String.format("%s %s - -:-:- %s", weekNameweek,monthNamemonth,day,hour,minute,second,year); g.drawString(timeString,

13、75, 215); g.drawString("neolone", 240, 280); / 切換前景與背景工作區(qū) BufferedImage tmp = boardDisplaying; boardDisplaying = boardDrawing; boardDrawing = tmp; this.repaint(); try Thread.sleep(500); catch (Exception e) System.out.println(e); /用g畫出某根針（時分秒只是長度不同），percent表示從十二點到某指針現(xiàn)在的位置占整個圓周的百分比，length表示長度 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)(15