java 求救--为什么两个类会受到对方的影响

清/wx风

1. import javax.swing.*;
   
2. 
   
3. import java.awt.*;
   
4. import java.awt.event.*;
   
5. import java.util.Calendar;
   
6. import java.util.GregorianCalendar;
   
7. //import java.util.*;
   
8. class Clock extends JPanel {
   
9. int x,y,x0,y0,r,h,olds_x,olds_y,oldm_x,oldm_y,oldh_x,oldh_y,ss,mm,hh,old_m,old_h,ang;
   
10. final double RAD = Math.PI/180; //度数转换成弧度的比例
    
11. Thread timer = null;
    
12. 
    
13. //构造函数创建了一个函数
    
14. public Clock() {
    
15. int delay = 500;
    
16. 
    
17. //创建一个监听事件
    
18. 
    
19. ActionListener drawClock = new ActionListener() {
    
20. 
    
21. public void actionPerformed(ActionEvent e){
    
22. repaint();
    
23. }
    
24. };
    
25. 
    
26. 
    
27. 
    
28. 
    
29. 
    
30. //创建一个时间计算器，每一秒触发一次
    
31. new Timer(delay, drawClock).start();
    
32. /* timer = new Thread();
    
33. while(timer!=null){
    
34. try{
    
35. Thread.sleep(1000);
    
36. }catch(InterruptedException e){}
    
37. 
    
38. }*/
    
39. }
    
40. 
    
41. //实现ActionListener接口必须实现的方法
    
42. //public void actionPerformed(ActionEvent evt){}
    
43. 
    
44. //绘制图像
    
45. public void paint(Graphics g){
    
46. Graphics2D g2D = (Graphics2D)g;
    
47. Insets insets = this.getInsets();
    
48. int L = insets.left/2,T = insets.top/2;
    
49. h = this.getSize().height;
    
50. //g.setColor(Color.white);
    
51. 
    
52. //画圆
    
53. g2D.setStroke(new BasicStroke(4.0f));
    
54. g.drawOval(L+40, T+40, h-80, h-80);
    
55. r = h/2-40;
    
56. x0 = 40+r-5+L;
    
57. y0 = 40+r-5-T;
    
58. ang = 60;
    
59. 
    
60. //绘制时钟上的12个字
    
61. for (int i = 1; i <= 12; i++) {
    
62. x = (int)((r+10)*Math.cos(RAD*ang)+x0);
    
63. y = (int)((r+10)*Math.sin(RAD*ang)+y0);
    
64. g.drawString(""+i, x,h-y);
    
65. ang -= 30;
    
66. }
    
67. 
    
68. //获得想在的时间
    
69. Calendar now = new GregorianCalendar();
    
70. int nowh = now.get(Calendar.HOUR_OF_DAY);
    
71. int nowm = now.get(Calendar.MINUTE);
    
72. int nows = now.get(Calendar.SECOND);
    
73. String st;
    
74. if(nowh<10) st = "0" + nowh; else st = ""+ nowh;
    
75. if(nowm<10) st += ":0" + nowm; else st += ":"+ nowm;
    
76. if(nows<10) st += ":0" + nows; else st += ":"+ nows;
    
77. 
    
78. //在窗体上显示时间
    
79. g.setColor(Color.pink);
    
80. g.fillRect(L+40, T, 50, 28);
    
81. g.setColor(Color.blue);
    
82. g.drawString(st,L+40, T+26);
    
83. 
    
84. //计算时间与度数的关系
    
85. ss = 90-nows*6;
    
86. mm = 90-nowm*6;
    
87. hh = 90-nowh*30-nowm/2;
    
88. x0 = r+40+L;
    
89. y0 = r+40+T;
    
90. g2D.setStroke(new BasicStroke(1.2f));
    
91. 
    
92. //擦除秒针
    
93. if (olds_x>0) {
    
94. g.setColor(this.getBackground());
    
95. g.drawLine(x0, y0, olds_x, h-olds_y);
    
96. }else {
    
97. old_m = mm;
    
98. old_h = hh;
    
99. }
    
100. 
     
101. //绘制秒针
     
102. x = (int)(r*0.9*Math.cos(RAD*ss))+x0;
     
103. y = (int)(r*0.9*Math.sin(RAD*ss))+y0-2*T;
     
104. g.setColor(Color.yellow);
     
105. g.drawLine(x0, y0, x, h-y);
     
106. olds_x = x;
     
107. olds_y = y;
     
108. g2D.setStroke(new BasicStroke(2.2f));
     
109. 
     
110. //擦除分针
     
111. if (old_m != mm) {
     
112. g.setColor(this.getBackground());
     
113. g.drawLine(x0, y0, oldm_x, h-oldm_y);
     
114. }
     
115. 
     
116. //绘制分针
     
117. x = (int)(r*0.7*Math.cos(RAD*mm))+x0;
     
118. y = (int)(r*0.7*Math.sin(RAD*mm))+y0-2*T;
     
119. g.setColor(Color.green);
     
120. g.drawLine(x0, y0, x, h-y);
     
121. oldm_x = x;
     
122. oldm_y = y;
     
123. old_m = mm;
     
124. g2D.setStroke(new BasicStroke(3.4f));
     
125. 
     
126. //擦除时针
     
127. if (old_h != hh) {
     
128. g.setColor(this.getBackground());
     
129. g.drawLine(x0, y0, oldh_x, h-oldh_y);
     
130. }
     
131. 
     
132. //绘制时针
     
133. x = (int)(r*0.5*Math.cos(RAD*hh))+x0;
     
134. y = (int)(r*0.5*Math.sin(RAD*hh))+y0-2*T;
     
135. g.setColor(Color.red);
     
136. g.drawLine(x0, y0, x, h-y);
     
137. oldh_x = x;
     
138. oldh_y = y;
     
139. old_h = hh;
     
140. //g2D.setStroke(new BasicStroke(3.4f));
     
141. }
     
142. }
     

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上面是Clock类，目的是显示一个模拟时钟

下面是一个挂历的类

1. import java.awt.BorderLayout;
   
2. import java.awt.Color;
   
3. import java.awt.Component;
   
4. import java.awt.GridLayout;
   
5. import java.awt.event.ActionEvent;
   
6. import java.awt.event.ActionListener;
   
7. import java.util.Calendar;
   
8. 
   
9. import javax.swing.*;
   
10. import javax.swing.event.ChangeEvent;
    
11. import javax.swing.event.ChangeListener;
    
12. import javax.swing.table.AbstractTableModel;
    
13. import javax.swing.table.TableCellRenderer;
    
14. import javax.swing.table.TableModel;
    
15. 
    
16. 
    
17. class MyCalendar extends JPanel {
    
18. public static final String WEEK_SUN = "SUN";
    
19. public static final String WEEK_MON = "MON";
    
20. public static final String WEEK_TUE = "TUE";
    
21. public static final String WEEK_WED = "WED";
    
22. public static final String WEEK_THU = "THU";
    
23. public static final String WEEK_FRI = "FRI";
    
24. public static final String WEEK_SAT = "SAT";
    
25. 
    
26. //设置背景色
    
27. public static final Color background = new Color(100,100,200);
    
28. //设置前景色
    
29. public static final Color foreground = new Color(200,200,100);
    
30. //设置题头星期的背景色和前景色
    
31. public static final Color headerBackground = Color.yellow;
    
32. public static final Color headerForeground = Color.green;
    
33. 
    
34. private JPanel cPanel;
    
35. private JLabel yearsLabel,monthsLabel; //年、月
    
36. private JSpinner yearsSpinner; //年调控
    
37. private JComboBox monthsComboBox; //月下拉框
    
38. private JTable daysTable; //用来显示日期的table
    
39. private AbstractTableModel daysModel;
    
40. private Calendar calendar;
    
41. 
    
42. 
    
43. 
    
44. //初始化，对所有的控件进行布局
    
45. public MyCalendar(){
    
46. cPanel = new JPanel();
    
47. cPanel.setLayout(new BorderLayout());
    
48. //cPanel.setBounds(0, 300, 300, 300);
    
49. calendar = Calendar.getInstance();
    
50. yearsLabel = new JLabel("Year:");
    
51. yearsSpinner = new JSpinner();
    
52. yearsSpinner.setEditor(new JSpinner.NumberEditor(yearsSpinner, "0000"));
    
53. yearsSpinner.setValue(new Integer(calendar.get(Calendar.YEAR)));
    
54. 
    
55. //增加监听 监听年份的改变
    
56. yearsSpinner.addChangeListener(new ChangeListener() {
    
57. public void stateChanged(ChangeEvent arg0) {
    
58. int day = calendar.get(Calendar.DAY_OF_MONTH);
    
59. calendar.set(Calendar.DAY_OF_MONTH, 1);
    
60. calendar.set(Calendar.YEAR, ((Integer)yearsSpinner.getValue()).intValue());
    
61. int maxDay = calendar.getActualMaximum(Calendar.DAY_OF_MONTH);
    
62. calendar.set(Calendar.DAY_OF_MONTH, (day > maxDay ? maxDay: day));
    
63. repaint();
    
64. }
    
65. });
    
66. add(cPanel);
    
67. JPanel yearMonthPanel = new JPanel();
    
68. cPanel.add(yearMonthPanel,BorderLayout.NORTH);
    
69. yearMonthPanel.setLayout(new GridLayout(1, 6));
    
70. //yearMonthPanel.add(new JPanel(),BorderLayout.CENTER);
    
71. JPanel yearPanel = new JPanel();
    
72. yearMonthPanel.add(yearPanel);
    
73. yearPanel.add(yearsLabel);
    
74. yearPanel.add(yearsSpinner);
    
75. //yearPanel.add(new JPanel());
    
76. 
    
77. monthsLabel = new JLabel("Month: ");
    
78. 
    
79. //向月份下拉框中增加内容
    
80. monthsComboBox = new JComboBox();
    
81. for (int i = 1; i <= 12; i++) {
    
82. monthsComboBox.addItem(new Integer(i));
    
83. }
    
84. monthsComboBox.setSelectedIndex(calendar.get(Calendar.MONTH));
    
85. 
    
86. //监听月份的改变
    
87. monthsComboBox.addActionListener(new ActionListener(){
    
88. 
    
89. public void actionPerformed(ActionEvent arg0) {
    
90. int day = calendar.get(Calendar.DAY_OF_MONTH);
    
91. calendar.set(Calendar.DAY_OF_MONTH, 1);
    
92. calendar.set(Calendar.MONTH, monthsComboBox.getSelectedIndex());;
    
93. int maxDay = calendar.getActualMaximum(Calendar.DAY_OF_MONTH);
    
94. calendar.set(Calendar.DAY_OF_MONTH, (day > maxDay ? maxDay: day));
    
95. repaint();
    
96. }
    
97. });
    
98. JPanel monthPanel =new JPanel();
    
99. yearMonthPanel.add(monthPanel);
    
100. monthPanel.setLayout(new BorderLayout());
     
101. monthPanel.add(monthsLabel,BorderLayout.WEST);
     
102. JPanel monthPane2 =new JPanel();
     
103. monthPanel.add(monthPane2,BorderLayout.CENTER);
     
104. monthPane2.setLayout(new BorderLayout());
     
105. monthPane2.add(monthsComboBox,BorderLayout.WEST );
     
106. 
     
107. daysModel = new AbstractTableModel() {
     
108. //设置行7
     
109. public Object getValueAt(int row, int col) {
     
110. if (row == 0) {
     
111. return getHeader(col);
     
112. }
     
113. row -- ;
     
114. Calendar calendar = (Calendar)MyCalendar.this.calendar.clone();
     
115. calendar.set(Calendar.DAY_OF_MONTH, 1);
     
116. int dayCount = calendar.getActualMaximum(Calendar.DAY_OF_MONTH);
     
117. int moreDayCount = calendar.get(Calendar.DAY_OF_WEEK) - 1;
     
118. int index = row * 7 +col;
     
119. int dayIndex = index - moreDayCount + 1;
     
120. 
     
121. if (index < moreDayCount || dayIndex > dayCount) {
     
122. return null;
     
123. }else {
     
124. return new Integer(dayIndex);
     
125. }
     
126. }
     
127. 
     
128. public int getRowCount() {
     
129. return 7;
     
130. }
     
131. 
     
132. public int getColumnCount() {
     
133. return 7;
     
134. }
     
135. };
     
136. 
     
137. daysTable = new CalendarTable(daysModel,calendar);
     
138. 
     
139. //设置每一个cell可以被选中
     
140. daysTable.setCellSelectionEnabled(true);
     
141. daysTable.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
     
142. daysTable.setDefaultRenderer(daysTable.getColumnClass(0), new TableCellRenderer() {
     
143. 
     
144. public Component getTableCellRendererComponent(JTable table, Object value,
     
145. boolean isSelect, boolean hasFocus, int row, int col) {
     
146. String text = (value == null) ? "" :value.toString();
     
147. JLabel cell = new JLabel(text);
     
148. cell.setOpaque(true);
     
149. if (row == 0) {
     
150. cell.setForeground(headerForeground);
     
151. cell.setBackground(headerBackground);
     
152. }else {
     
153. if (isSelect) {
     
154. cell.setForeground(Color.white);
     
155. cell.setBackground(Color.black);
     
156. }else {
     
157. cell.setForeground(foreground);
     
158. cell.setBackground(background);
     
159. }
     
160. }
     
161. return cell;
     
162. }
     
163. });
     
164. repaint();
     
165. cPanel.add(new JPanel(),BorderLayout.EAST);
     
166. cPanel.add(daysTable,BorderLayout.CENTER);
     
167. cPanel.add(new JPanel(),BorderLayout.WEST);
     
168. this.setVisible(true);
     
169. }
     
170. public static String getHeader(int index){
     
171. switch(index){
     
172. case 0:
     
173. return WEEK_SUN;
     
174. case 1:
     
175. return WEEK_MON;
     
176. case 2:
     
177. return WEEK_TUE;
     
178. case 3:
     
179. return WEEK_WED;
     
180. case 4:
     
181. return WEEK_THU;
     
182. case 5:
     
183. return WEEK_FRI;
     
184. case 6:
     
185. return WEEK_SAT;
     
186. default:
     
187. return null;
     
188. 
     
189. }
     
190. }
     
191. public void updateView(){
     
192. daysModel.fireTableDataChanged();
     
193. daysTable.setRowSelectionInterval(calendar.get(Calendar.WEEK_OF_MONTH), calendar.get(Calendar.WEEK_OF_MONTH));
     
194. daysTable.setColumnSelectionInterval(calendar.get(Calendar.DAY_OF_MONTH)-1, calendar.get(Calendar.DAY_OF_MONTH)-1);
     
195. }
     
196. //设置日历的table
     
197. public static class CalendarTable extends JTable{
     
198. private Calendar calendar;
     
199. 
     
200. public CalendarTable(TableModel model,Calendar calendar){
     
201. super(model);
     
202. this.calendar = calendar;
     
203. }
     
204. public void changeSelection(int row,int col,boolean toggle,boolean extend){
     
205. super.changeSelection(row, col, toggle, extend);
     
206. if (row ==0) {
     
207. return;
     
208. }
     
209. Object obj = this.getValueAt(row, col);
     
210. if (obj != null) {
     
211. calendar.set(Calendar.DAY_OF_MONTH, ((Integer)obj).intValue());
     
212. }
     
213. }
     
214. }
     
215. 
     
216. 
     
217. // public void actionPerformed(ActionEvent arg0) {
     
218. //
     
219. // }
     
220. 
     
221. }
     

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下面是住类，界面类  

1. import java.awt.*;
   
2. import java.awt.event.WindowAdapter;
   
3. import java.awt.event.WindowEvent;
   
4. public class MyText
   
5. {
   
6. public static void main(String[] args) {
   
7. new MyFrame("记事本",120,120,800,600);
   
8. }
   
9. }
   
10. class MyFrame extends Frame{
    
11. protected MyCalendar p2;
    
12. protected Clock p1;
    
13. MyFrame(String s,int x,int y,int w,int h) {
    
14. super(s);
    
15. MyPanel p4 = new MyPanel(w,h);
    
16. p2 = new MyCalendar();
    
17. Panel p3 = new Panel(null);
    
18. p1 = new Clock();
    
19. setSize(w, h);
    
20. setLocation(x, y);
    
21. p1.setBackground(Color.white);
    
22. setLayout(new GridLayout(2,2));
    
23. this.addWindowListener(new WindowAdapter() {
    
24. 
    
25. public void windowClosing(WindowEvent arg0) {
    
26. System.exit(0);
    
27. }
    
28. });
    
29. add(p2);
    
30. add(p4);
    
31. add(p3);
    
32. add(p1);
    
33. //this.setResizable(false);
    
34. setVisible(true);
    
35. }
    
36. }
    
37. class MyPanel extends TextArea{
    
38. MyPanel(int w,int h)
    
39. {
    
40. setSize(50, 50);
    
41. setLocation(300, 300);
    
42. setEditable(true);
    
43. 
    
44. }
    
45. }

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清/wx风

发上来就是想问问，感激~~！，睡觉去了

zhuangyanxiang

今晚有空再看看哈！

清/wx风

zhuangyanxiang 发表于 2011-12-15 15:27

                               
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今晚有空再看看哈！

谢谢~~！ 先感激下先~~！