java电子时钟(分针 秒针 时针 源代码)

import javax.swing.*; import javax.swing.JMenuItem; import javax.swing.JPopupMenu; import javax.swing.border.EmptyBorder; import com.swtdesigner.SwingResourceManager; import java.awt.event.ActionListener; import java.awt.event.MouseAdapter; import java.awt.event.MouseEvent; import java.awt.event.ActionEvent; import java.awt.geom.AffineTransform; import java.awt.geom.Ellipse2D; import java.awt.geom.PathIterator; import java.awt.geom.Point2D; import java.awt.geom.Rectangle2D; import java.awt.*; import java.awt.Color; import java.awt.Component; import java.util.Calendar; import java.util.Date; import java.util.GregorianCalendar; public class Simple_Clock extends JWindow implements ActionListener { int x, y, x_1, y_1, r, h, ss_x, ss_y, mm_x, mm_y, hh_x, hh_y, ss, mm, hh, old_m, old_h, ang; final double RAD = Math.PI / 180; // 度数转换成弧度的比例 // 构造函数创建了一个窗体 public Simple_Clock() { //super("Java Applet小时钟"); Image image = getToolkit().getImage("1.jpg"); setIconImage(image); setSize(180, 180); setBackground(new Color(139, 69, 19)); setLocation(1180,5 ); //setResizable(true); show(); setLayout(new BorderLayout()); setIconImages(null); final JPopupMenu popupMenu = new JPopupMenu(); addPopup(getContentPane(), popupMenu); final JMenuItem Item = new JMenuItem(); Item.setRolloverIcon(SwingResourceManager.getIcon(Simple_Clock.class, "button_up.png")); Item.setContentAreaFilled(false); Item.setBorder(new EmptyBorder(0, -8, 0, -18)); Item.setIcon(SwingResourceManager.getIcon(Simple_Clock.class, "com/swtdesigner/button_up.png")); Item.addActionListener(this); popupMenu.add(Item); int delay = 1000; // 创建一个监听事件 ActionListener draw = new ActionListener() { public void actionPerformed(ActionEvent evt) { repaint(); } }; // 创建一个时间计数器，每一秒触发一次 new Timer(delay, draw).start(); } // 实现ActionListener接口必须实现的方法 public void actionPerformed(ActionEvent e) { System.exit(0); } // 绘制图形 public void paint(Graphics g) { Graphics2D g2D = (Graphics2D) g;// Graphics强制类型转换成Graphics2D Insets insets = getInsets();// 创建JFrame的边界对象 int L = insets.left / 2, T = insets.top / 2;// L=左边界的2/1，T=上边界的2/1 h = getSize().height;// 返回JFrame的高度 g.setColor(Color.WHITE);// 设置画笔的颜色为棕色 // 画圆 g2D.setStroke(new BasicStroke(3.0f)); Shape shape=new Ellipse2D.Double(L+40, T+40, h-80, h-80); g2D.fill(shape); g.setColor(Color.BLACK); g.drawOval(L+40, L+40, h-80, h-80); g.setColor(Color.BLACK); Shape shape_1=new Ellipse2D.Double(L+84,T+84,h-165,h-165); g2D.fill(shape_1); //g.drawOval(L + 40, T + 40, h - 80, h - 80);// r = h / 2 - 40; x_1 = 40 + r - 5 + L; y_1 = 40 + r - 5 - T; ang = 60; // 绘制时钟上的12个字 g.setFont(new Font("", Font.BOLD, 14)); g.setColor(new Color(240, 255, 255)); for (int i = 1; i <= 12; i++) { x = (int) ((r + 12) * Math.cos(RAD * ang) + x_1); y = (int) ((r + 12) * Math.sin(RAD * ang) + y_1); g.drawString("" + i, x, h - y); ang -= 30; } // 获得现在的时间 Calendar now = new GregorianCalendar();// 创建Calendar对象now int hour = now.get(Calendar.HOUR_OF_DAY);// 取得当前的小时部分 int minute = now.get(Calendar.MINUTE);// 取得当前时间的分钟部分 int second = now.get(Calendar.SECOND);// 取得当前时间的秒 String st; if (hour < 10) st = "0" + hour; else st = "" + hour; if (minute < 10) st += ":0" + minute; else st += ":" + minute; if (second < 10) st += ":0" + second; else st += ":" + second; // 在窗体上显示时间格式如：00:00:00 g.setColor(new Color(169,169,169)); g.fillRect(L, T, 60, 30);// 画出宽为60像素，高为30像素的矩形，颜色为粉色 g.setColor(Color.BLACK); g.drawString(st, L + 2, T + 26); g.setColor(new Color(169,169,169)); g.fillRect(L+120, T, 60, 30); Date n=new Date(); String ssss=String.format("%ty/%tm/%td", n,n,n); g.setColor(Color.BLACK); g.drawString(ssss, L+122, T+26); g.setColor(new Color(169,169,169)); g.fillRect(L, T+155, 60, 30); g.setColor(Color.BLACK); String sss=String.format("%tA",n); g.drawString(sss, L+2, T+176); g.setColor(new Color(169,169,169)); g.fillRect(L+120, T+155, 60, 30); g.setColor(Color.BLACK); String namm=" 波波表"; g.drawString(namm, L+122, T+176); // 将上面组成好的字符串st画出，颜色为黄色 // 计算时间与度数的关系 ss = 90 - second * 6; mm = 90 - minute * 6; hh = 90 - hour * 30 - minute / 2; x_1 = r + 40 + L; y_1 = r + 40 + T; g2D.setStroke(new BasicStroke(1.0f));// 设置秒针的宽度 if (ss_x > 0) {// 擦除秒针 g.setColor(Color.WHITE); g.drawLine(x_1, y_1, ss_x, h - ss_y); } else { old_m = mm; old_h = hh; } // 绘制秒针 x = (int) (r * 0.9 * Math.cos(RAD * ss)) + x_1; y = (int) (r * 0.9 * Math.sin(RAD * ss)) + y_1 - 2 * T; g.setColor(Color.BLACK); g.drawLine(x_1, y_1, x, h - y); ss_x = x; ss_y = y; g2D.setStroke(new BasicStroke(2.0f));// 设置分针的宽度 // 擦除分针 if (old_m != mm) { g.setColor(Color.WHITE); g.drawLine(x_1, y_1, mm_x, h - mm_y); } // 绘制分针 x = (int) (r * 0.7 * Math.cos(RAD * mm)) + x_1; y = (int) (r * 0.7 * Math.sin(RAD * mm)) + y_1 - 2 * T; g.setColor(new Color(138, 43, 226)); g.drawLine(x_1, y_1, x, h - y); mm_x = x; mm_y = y; old_m = mm; g2D.setStroke(new BasicStroke(3.0f));// 设置时针的宽度 // 擦除时针 if (old_h != hh) { g.setColor(Color.WHITE); g.drawLine(x_1, y_1, hh_x, h - hh_y); } // 绘制时针 x = (int) (r * 0.5 * Math.cos(RAD * hh)) + x_1; y = (int) (r * 0.5 * Math.sin(RAD * hh)) + y_1 - 2 * T; g.setColor(new Color(107, 142, 35)); g.drawLine(x_1, y_1, x, h - y); hh_x = x; hh_y = y; old_h = hh; } public static void main(String[] args) { Simple_Clock cd = new Simple_Clock(); } /** * WindowBuilder generated method.<br> * Please don't remove this method or its invocations.<br> * It used by WindowBuilder to associate the {@link javax.swing.JPopupMenu} with parent. */ private static void addPopup(Component component, final JPopupMenu popup) { component.addMouseListener(new MouseAdapter() { public void mousePressed(MouseEvent e) { if (e.isPopupTrigger()) showMenu(e); } public void mouseReleased(MouseEvent e) { if (e.isPopupTrigger()) showMenu(e); } private void showMenu(MouseEvent e) { popup.show(e.getComponent(), e.getX(), e.getY()); } }); } }