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17
18 import java.util.*;
19 import java.awt.*;
20 import java.applet.*;
21 import java.text.*;
22
23
28
29 public class Clock2 extends Applet implements Runnable  {
30 Thread timer; int lastxs, lastys, lastxm,
32 lastym, lastxh, lastyh; SimpleDateFormat formatter; String lastdate; Font clockFaceFont; Date currentDate; Color handColor; Color numberColor;
40 public void init() {
41 int x,y;
42 lastxs = lastys = lastxm = lastym = lastxh = lastyh = 0;
43 formatter = new SimpleDateFormat ("EEE MMM dd hh:mm:ss yyyy", Locale.getDefault());
44 currentDate = new Date();
45 lastdate = formatter.format(currentDate);
46 clockFaceFont = new Font("Serif", Font.PLAIN, 14);
47 handColor = Color.blue;
48 numberColor = Color.darkGray;
49
50 try {
51 setBackground(new Color(Integer.parseInt(getParameter("bgcolor"),16)));
52 } catch (Exception E) { }
53 try {
54 handColor = new Color(Integer.parseInt(getParameter("fgcolor1"),16));
55 } catch (Exception E) { }
56 try {
57 numberColor = new Color(Integer.parseInt(getParameter("fgcolor2"),16));
58 } catch (Exception E) { }
59 resize(300,300); }
61
62 public void plotpoints(int x0, int y0, int x, int y, Graphics g) {
65 g.drawLine(x0+x,y0+y,x0+x,y0+y);
66 g.drawLine(x0+y,y0+x,x0+y,y0+x);
67 g.drawLine(x0+y,y0-x,x0+y,y0-x);
68 g.drawLine(x0+x,y0-y,x0+x,y0-y);
69 g.drawLine(x0-x,y0-y,x0-x,y0-y);
70 g.drawLine(x0-y,y0-x,x0-y,y0-x);
71 g.drawLine(x0-y,y0+x,x0-y,y0+x);
72 g.drawLine(x0-x,y0+y,x0-x,y0+y);
73 }
74
75 public void circle(int x0, int y0, int r, Graphics g) {
77 int x,y;
78 float d;
79 x=0;
80 y=r;
81 d=5/4-r;
82 plotpoints(x0,y0,x,y,g);
83
84 while (y>x){
85 if (d<0) {
86 d=d+2*x+3;
87 x++;
88 }
89 else {
90 d=d+2*(x-y)+5;
91 x++;
92 y--;
93 }
94 plotpoints(x0,y0,x,y,g);
95 }
96 }
97
98 public void paint(Graphics g) {
100 int xh, yh, xm, ym, xs, ys, s = 0, m = 10, h = 10, xcenter, ycenter;
101 String today;
102
103 currentDate = new Date();
104 SimpleDateFormat formatter = new SimpleDateFormat("s",Locale.getDefault());
105 try {
106 s = Integer.parseInt(formatter.format(currentDate));
107 } catch (NumberFormatException n) {
108 s = 0;
109 }
110 formatter.applyPattern("m");
111 try {
112 m = Integer.parseInt(formatter.format(currentDate));
113 } catch (NumberFormatException n) {
114 m = 10;
115 }
116 formatter.applyPattern("h");
117 try {
118 h = Integer.parseInt(formatter.format(currentDate));
119 } catch (NumberFormatException n) {
120 h = 10;
121 }
122 formatter.applyPattern("EEE MMM dd HH:mm:ss yyyy");
123 today = formatter.format(currentDate);
124 xcenter=80;
125 ycenter=55;
126
127
130 xs = (int)(Math.cos(s * 3.14f/30 - 3.14f/2) * 45 + xcenter);
131 ys = (int)(Math.sin(s * 3.14f/30 - 3.14f/2) * 45 + ycenter);
132 xm = (int)(Math.cos(m * 3.14f/30 - 3.14f/2) * 40 + xcenter);
133 ym = (int)(Math.sin(m * 3.14f/30 - 3.14f/2) * 40 + ycenter);
134 xh = (int)(Math.cos((h*30 + m/2) * 3.14f/180 - 3.14f/2) * 30 + xcenter);
135 yh = (int)(Math.sin((h*30 + m/2) * 3.14f/180 - 3.14f/2) * 30 + ycenter);
136
137
139 g.setFont(clockFaceFont);
140 g.setColor(handColor);
141 circle(xcenter,ycenter,50,g);
142 g.setColor(numberColor);
143 g.drawString("9",xcenter-45,ycenter+3);
144 g.drawString("3",xcenter+40,ycenter+3);
145 g.drawString("12",xcenter-5,ycenter-37);
146 g.drawString("6",xcenter-3,ycenter+45);
147
148
150 g.setColor(getBackground());
151 if (xs != lastxs || ys != lastys) {
152 g.drawLine(xcenter, ycenter, lastxs, lastys);
153 g.drawString(lastdate, 5, 125);
154 }
155 if (xm != lastxm || ym != lastym) {
156 g.drawLine(xcenter, ycenter-1, lastxm, lastym);
157 g.drawLine(xcenter-1, ycenter, lastxm, lastym); }
158 if (xh != lastxh || yh != lastyh) {
159 g.drawLine(xcenter, ycenter-1, lastxh, lastyh);
160 g.drawLine(xcenter-1, ycenter, lastxh, lastyh); }
161 g.setColor(numberColor);
162 g.drawString("", 5, 125);
163 g.drawString(today, 5, 125);
164 g.drawLine(xcenter, ycenter, xs, ys);
165 g.setColor(handColor);
166 g.drawLine(xcenter, ycenter-1, xm, ym);
167 g.drawLine(xcenter-1, ycenter, xm, ym);
168 g.drawLine(xcenter, ycenter-1, xh, yh);
169 g.drawLine(xcenter-1, ycenter, xh, yh);
170 lastxs=xs; lastys=ys;
171 lastxm=xm; lastym=ym;
172 lastxh=xh; lastyh=yh;
173 lastdate = today;
174 currentDate=null;
175 }
176
177 public void start() {
178 timer = new Thread (this);
179 timer.start();
180 }
181
182 public void stop() {
183 timer = null;
184 }
185
186 public void run() {
187 Thread me = Thread.currentThread();
188 while (timer == me) {
189 try {
190 Thread.currentThread().sleep(100);
191 } catch (InterruptedException e) {
192 }
193 repaint();
194 }
195 }
196
197 public void update(Graphics g) {
198 paint(g);
199 }
200
201 public String getAppletInfo() {
202 return "Title: A Clock \nAuthor: Rachel Gollub, 1995 \nAn analog clock.";
203 }
204
205 public String [][] getParameterInfo() {
206 String [][] info = {
207 {"bgcolor", "hexadecimal RGB number", "The background color. Default is the color of your browser."},
208 {"fgcolor1", "hexadecimal RGB number", "The color of the hands and dial. Default is blue."},
209 {"fgcolor2", "hexadecimal RGB number", "The color of the seconds hand and numbers. Default is dark gray."}
210 };
211 return info;
212 }
213 }
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