java小闹钟详细教程

㈠ 寻找java编程高手写一个闹钟的程序

自己之前做过的一个：
import java.awt.*;
import java.awt.event.*;
import java.util.*;
import javax.swing.*;
import javax.swing.Timer;

public class Clock extends JFrame implements ActionListener {
public final int HEIGTH = 200, L0 = 50, T0 = 50,N=8;
public final double RAD = Math.PI / 180.0;
int x, y, old_X, old_Y, r, x0, y0, w, h, ang;
int sdo, mdo, hdo, old_M, old_H, hh, mm, ss;
int delay = 1000;
Calendar now;
String st, alarm, Items1, Items2,str[];
JButton jb;
JComboBox jc1, jc2, jc3;
JLabel jl1, jl2, jl3, jl4;
JMenu jm1, jm2, jm3, jm4;
JMenuBar jmb;
JMenuItem jmi1, jmi2, jmi3, jmi4, jmi5, jmi6, jmi7, jmi8, jmi9,jmi10;
JTextField jtf1, jtf2, time;
JPanel jp1, jp2, jp3;
Timer timer;
TimeZone tz = TimeZone.getTimeZone("JST");
Toolkit toolkit=Toolkit.getDefaultToolkit();;
/**
* <br>
* 方法说明：实现类必须过载的方法
*/

public static void main(String[] args) {
Clock cp = new Clock();
cp.setVisible(true);
}

Clock() {
super("Java闹钟！");
setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
setSize(550, 700);
setVisible(true);
Container contentPane = getContentPane();

jp2 = new JPanel();

jmb = new JMenuBar();

jm1 = new JMenu("背景颜色设置 ", true);
jmi1 = new JMenuItem("外圈颜色");
jmi1.addActionListener(this);
jmi1.setActionCommand("color1");
jm1.add(jmi1);
jmi2 = new JMenuItem("闹钟边线颜色");
jmi2.addActionListener(this);
jmi2.setActionCommand("color2");
jm1.add(jmi2);
jmi3=new JMenuItem("底盘颜色");
jmi3.addActionListener(this);
jmi3.setActionCommand("color3");
jm1.add(jmi3);
jmi4=new JMenuItem("系统时间背静颜色");
jmi4.addActionListener(this);
jmi4.setActionCommand("color4");
jm1.add(jmi4);
jmb.add(jm1);

jm2 = new JMenu("指针颜色设置 ", true);
jmi5 = new JMenuItem("秒针颜色");
jmi5.addActionListener(this);
jmi5.setActionCommand("color5");
jm2.add(jmi5);
jmi6 = new JMenuItem("分针颜色");
jmi6.addActionListener(this);
jmi6.setActionCommand("color6");
jm2.add(jmi6);
jmi7 = new JMenuItem("时针颜色");
jmi7.addActionListener(this);
jmi7.setActionCommand("color7");
jm2.add(jmi7);
jmb.add(jm2);

jm3 = new JMenu("闹铃声音设置 ", true);
jmi8 = new JMenuItem("响铃1");
jmi8.addActionListener(this);
jmi8.setActionCommand("ring1");
jm3.add(jmi8);
jmi9 = new JMenuItem("静音");
jmi9.addActionListener(this);
jmi9.setActionCommand("ring2");
jm3.add(jmi9);
jmb.add(jm3);

jm4 = new JMenu("帮助 ", true);
jmi10=new JMenuItem("使用说明");
jmi10.addActionListener(this);
jmi10.setActionCommand("help");
jm4.add(jmi10);
jmb.add(jm4);
jp2.add(jmb);

contentPane.add(jp2, BorderLayout.NORTH);

jp3 = new JPanel();
jl1 = new JLabel("闹铃时间");
jl1.setFont(new Font("楷体_GB2312", Font.BOLD, 18));
time = new JTextField("00:00", 5);
alarm = time.getText();
jb = new JButton("修改闹铃时间");
jb.addActionListener(this);
jb.setActionCommand("CC");
jp3.add(jl1);
jp3.add(time);
jp3.add(jb);
contentPane.add(jp3, BorderLayout.SOUTH);

ClockPanel clock = new ClockPanel();
contentPane.add(clock, BorderLayout.CENTER);

// 窗体添加事件监听，监听秒表的触发
ActionListener taskPerformer = new ActionListener() {
public void actionPerformed(ActionEvent evt) {
repaint();
}
};
new Timer(delay, taskPerformer).start();
}

/**
* <br>
* 方法说明：绘制图形
*/

Color C1 = Color.lightGray;// 外圈颜色
Color C2 = Color.black;// 边线颜色
Color C3 = Color.magenta;// 内盘颜色
Color C4 = Color.blue;// 背景颜色
Color C5 = Color.yellow;// 秒针颜色
Color C6 = Color.green;// 分针颜色
Color C7 = Color.red;//时针颜色
public class ClockPanel extends JPanel {
public void paint(Graphics g) {
h = getSize().height - 200;
// 绘制圆形
g.setColor(C1);
g.fillOval(L0 + 30, T0 + 30, h - 60, h - 60);
g.setColor(C2);
g.drawOval(L0 + 31, T0 + 31, h - 62, h - 62);
g.setColor(C3);
g.fillOval(L0 + 50, T0 + 50, h - 100, h - 100);
g.setColor(C2);
g.drawOval(L0 + 51, T0 + 51, h - 102, h - 102);

r = h / 2 - 30;
x0 = 30 + r - 5 + L0;
y0 = 30 + r - 5 - T0;
ang = 60;
for (int i = 1; i <= 12; i++) {
x = (int) ((r - 10) * Math.cos(RAD * ang) + x0);
y = (int) ((r - 10) * Math.sin(RAD * ang) + y0);
g.drawString("" + i, x, h - y);
ang -= 30;
}
x0 = 30 + r + L0;
y0 = 30 + r + T0;
g.drawString("指针式时钟", 215, 200);

// 获取时间
now = Calendar.getInstance();
hh = now.get(Calendar.HOUR_OF_DAY);// 小时
mm = now.get(Calendar.MINUTE);// 分钟
ss = now.get(Calendar.SECOND);// 秒
g.setColor(C4);
g.fillRect(5, 550, 150, 30);// 填充的矩形
g.setColor(C6);
if (hh < 10)
st = "0" + hh;
else
st = "" + hh;
if (mm < 10)
st = st + ":0" + mm;
else
st = st + ":" + mm;
if(alarm.equals(st))
{
if(toolkit!=null)
toolkit.beep();
else {}
}
if (ss < 10)
st = st + ":0" + ss;
else
st = st + ":" + ss;
{
g.setFont(new Font("华文楷体", Font.BOLD, 16));
g.drawString("系统时间:" + st, 10, 570);
}

// 计算时间和图形的关系
sdo = 90 - ss * 6;
mdo = 90 - mm * 6;
hdo = 90 - hh * 30 - mm / 2;
// 擦除秒针
if (old_X > 0) {
g.setColor(C3);
} else {
old_M = mdo;
old_H = hdo;
}
// 绘制秒针
g.setColor(C5);
x = (int) ((r - 26) * Math.cos(RAD * sdo) + x0);
y = (int) ((r - 26) * Math.sin(RAD * sdo) + y0) - 2 * T0;
g.drawLine(x0, y0, x, (h - y));

old_X = x;
old_Y = y;

// 擦除分针和时针
if (mdo != old_M) {
g.setColor(C3);
old_M = mdo;
}
if (hdo != old_H) {
g.setColor(C3);
old_H = hdo;
}
// 绘制分针
g.setColor(C6);
x = (int) ((r - 50) * Math.cos(RAD * mdo) + x0);
y = (int) ((r - 50) * Math.sin(RAD * mdo) + y0) - 2 * T0;
g.drawLine(x0, y0, x, (h - y));
// 绘制时针
g.setColor(C7);
x = (int) ((r - 90) * Math.cos(RAD * hdo) + x0);
y = (int) ((r - 90) * Math.sin(RAD * hdo) + y0) - 2 * T0;
g.drawLine(x0, y0, x, (h - y));
} // end paint
}

// 闹铃时间的判断及实现
// 闹铃声音的实现

public void actionPerformed(ActionEvent e) {
// JMenuItem m = (JMenuItem) e.getSource();

if (e.getActionCommand() == "CC") {
int newHou, newMin;
char c;

String getTime = JOptionPane.showInputDialog(this, "请输入闹铃时间格式如：", "00:00");
repaint();

//如果撤消设置时间，就什么打印null
if(getTime==null)
System.out.println(getTime);
// dispose();

judge: if (getTime != null) {
//打印输入的设置的时间
System.out.println(getTime);
// 判断输入的是不是5位字符
if (getTime.length() != 5) {
JOptionPane.showMessageDialog(time, "格式错误\n请按格式输入5位数字", "Error",
JOptionPane.ERROR_MESSAGE);
repaint();
break judge;
}

// 判断输入的是不是数字
for (int i = 0; i < (getTime.length()); i++) {
c = getTime.charAt(i);
if (i == 2 && !Character.isDigit(c))
continue;
// 判断当前字符,如果不是数字则跳出该事件
if (i != 2 && !Character.isDigit(c)) {
JOptionPane.showMessageDialog(this, "格式错误\n请按格式输入5位数字",
"Error",JOptionPane.ERROR_MESSAGE);
repaint();
break judge;
}
}
char[] hour = { getTime.charAt(0), getTime.charAt(1) };
char[] minute = { getTime.charAt(3), getTime.charAt(4) };
newHou = Integer.parseInt(String.valueOf(hour));
newMin = Integer.parseInt(String.valueOf(minute));
if (newHou >= 24 || newHou < 0) {
JOptionPane.showMessageDialog(this, "格式错误\n小时应该是不小于0不大于23的正数",
"Error", JOptionPane.ERROR_MESSAGE);
repaint();
break judge;
}
if (newMin >= 60 || newHou < 0) {
JOptionPane.showMessageDialog(this, "格式错误\n分钟应该是小于60的正数", "Error",
JOptionPane.ERROR_MESSAGE);
repaint();
break judge;
}
new SetTime(newHou, newMin);
}
}

if (e.getActionCommand() == "ring1") {
toolkit=Toolkit.getDefaultToolkit();
}
if(e.getActionCommand() == "ring2"){
System.out.println("静音");
toolkit=null;

}

if (e.getActionCommand() == "color1") {
String color;
Color c;
System.out.println("color1");
color = JOptionPane.showInputDialog(this, "请输入喜欢的外圈颜色（0--255）", "128");
if (color == null) {
} else {
if (Integer.parseInt(color) < 0
|| Integer.parseInt(color) > 255)
JOptionPane.showInputDialog(this, "请输入喜欢的外圈颜色（0--255）", "128");
else {
c = new Color(Integer.parseInt(color));
C1 = c;
}
}
}
if(e.getActionCommand() == "color2"){
String color;
Color c;
System.out.println("color2");
color = JOptionPane.showInputDialog(this, "请输入喜欢的边线颜色（0--255）", "128");
if(color==null){}
else{if (Integer.parseInt(color) < 0|| Integer.parseInt(color) > 255)
JOptionPane.showInputDialog(this, "请输入喜欢的边线颜色（0--255）", "128");
else {
c = new Color(Integer.parseInt(color));
C2 = c;
}
}
}
if(e.getActionCommand() == "color3"){
String color;
Color c;
System.out.println("color3");
color = JOptionPane.showInputDialog(this, "请输入喜欢的内盘颜色（0--255）", "128");
if(color==null){}
else{if (Integer.parseInt(color) < 0|| Integer.parseInt(color) > 255)
JOptionPane.showInputDialog(this, "请输入喜欢的内盘颜色（0--255）", "128");
else {
c = new Color(Integer.parseInt(color));
C3 = c;
}
}
}

if(e.getActionCommand() == "color4"){
String color;
Color c;
System.out.println("color4");
color = JOptionPane.showInputDialog(this, "请输入喜欢的背景颜色（0--255）", "128");
if(color==null){}
else{if (Integer.parseInt(color) < 0|| Integer.parseInt(color) > 255)
JOptionPane.showInputDialog(this, "请输入喜欢的背景颜色（0--255）", "128");
else {
c = new Color(Integer.parseInt(color));
C4 = c;
}
}
}
if(e.getActionCommand() == "color5"){
String color;
Color c;
System.out.println("color5");
color = JOptionPane.showInputDialog(this, "请输入喜欢的秒针颜色（0--255）", "128");
if(color==null){}
else{if (Integer.parseInt(color) < 0|| Integer.parseInt(color) > 255)
JOptionPane.showInputDialog(this, "请输入喜欢的秒针颜色（0--255）", "128");
else {
c = new Color(Integer.parseInt(color));
C5 = c;
}
}
}
if(e.getActionCommand() == "color6"){
String color;
Color c;
System.out.println("color6");
color = JOptionPane.showInputDialog(this, "请输入喜欢的分针颜色（0--255）", "128");
if(color==null){}
else{if (Integer.parseInt(color) < 0|| Integer.parseInt(color) > 255)
JOptionPane.showInputDialog(this, "请输入喜欢的分针颜色（0--255）", "128");
else {
c = new Color(Integer.parseInt(color));
C6 = c;
}
}
}

if(e.getActionCommand() == "color7"){
String color;
Color c;
System.out.println("color7");
color = JOptionPane.showInputDialog(this, "请输入喜欢的时针颜色（0--255）", "128");
if(color==null){}
else{if (Integer.parseInt(color) < 0|| Integer.parseInt(color) > 255)
JOptionPane.showInputDialog(this, "请输入喜欢的时针颜色（0--255）", "128");
else {
c = new Color(Integer.parseInt(color));
C7 = c;
}
}
}

if(e.getActionCommand() == "help"){
String help;
help = JOptionPane.showInputDialog(this, "输入quit退出该闹钟的使用", "这是运行在Java中的指针式时钟");
if(help.equals("quit"))
dispose();
else {}
// timer.restart();
}
}

class SetTime {
String Hour;
String Minute;

public SetTime() { }
public SetTime(int hour, int minute) {
// 当时间参数小于10的时候在前面添加字符0
if (hour < 10) {
Hour = "0" + String.valueOf(hour);
} else {
Hour = "" + String.valueOf(hour);
}
if (minute < 10) {
Minute = "0" + String.valueOf(minute);
} else {
Minute = "" + String.valueOf(minute);
}
alarm = Hour + ":" + Minute;
time.setText(alarm);
repaint();
}
}
}

㈡ 怎样用java制作一个钟表类

public class Horologe{
private int hour;
private int minute;
private int second;
public void setTime(int hour,int minute,int second){ //设置时间的方法
this.hour = hour; //传进的参数赋值给成员变量
this.minute = minute;
this.second = second;
}
public String showTime(){ //显示时间的方法
return "小时内:"+hour+" 分钟:"+minute+" 秒: "+second;
}
}
希望能够帮到你容

㈢ 用JAVA编一个小闹钟

import java.awt.*;
import java.awt.event.*;
import java.util.*;
import javax.swing.*;
import javax.swing.Timer;

public class Clock extends JFrame implements ActionListener {
public final int HEIGTH = 200, L0 = 50, T0 = 50,N=8;
public final double RAD = Math.PI / 180.0;
int x, y, old_X, old_Y, r, x0, y0, w, h, ang;
int sdo, mdo, hdo, old_M, old_H, hh, mm, ss;
int delay = 1000;
Calendar now;
String st, alarm, Items1, Items2,str[];
JButton jb;
JComboBox jc1, jc2, jc3;
JLabel jl1, jl2, jl3, jl4;
JMenu jm1, jm2, jm3, jm4;
JMenuBar jmb;
JMenuItem jmi1, jmi2, jmi3, jmi4, jmi5, jmi6, jmi7, jmi8, jmi9,jmi10;
JTextField jtf1, jtf2, time;
JPanel jp1, jp2, jp3;
Timer timer;
TimeZone tz = TimeZone.getTimeZone("JST");
Toolkit toolkit=Toolkit.getDefaultToolkit();;
/**
* <br>
* 方法说明：实现ActionListener类必须过载的方法
*/

public static void main(String[] args) {
Clock cp = new Clock();
cp.setVisible(true);
}

Clock() {
super("Java闹钟！");
setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
setSize(550, 700);
setVisible(true);
Container contentPane = getContentPane();

jp2 = new JPanel();

jmb = new JMenuBar();

jm1 = new JMenu("背景颜色设置 ", true);
jmi1 = new JMenuItem("外圈颜色");
jmi1.addActionListener(this);
jmi1.setActionCommand("color1");
jm1.add(jmi1);
jmi2 = new JMenuItem("闹钟边线颜色");
jmi2.addActionListener(this);
jmi2.setActionCommand("color2");
jm1.add(jmi2);
jmi3=new JMenuItem("底盘颜色");
jmi3.addActionListener(this);
jmi3.setActionCommand("color3");
jm1.add(jmi3);
jmi4=new JMenuItem("系统时间背静颜色");
jmi4.addActionListener(this);
jmi4.setActionCommand("color4");
jm1.add(jmi4);
jmb.add(jm1);

jm2 = new JMenu("指针颜色设置 ", true);
jmi5 = new JMenuItem("秒针颜色");
jmi5.addActionListener(this);
jmi5.setActionCommand("color5");
jm2.add(jmi5);
jmi6 = new JMenuItem("分针颜色");
jmi6.addActionListener(this);
jmi6.setActionCommand("color6");
jm2.add(jmi6);
jmi7 = new JMenuItem("时针颜色");
jmi7.addActionListener(this);
jmi7.setActionCommand("color7");
jm2.add(jmi7);
jmb.add(jm2);

jm3 = new JMenu("闹铃声音设置 ", true);
jmi8 = new JMenuItem("响铃1");
jmi8.addActionListener(this);
jmi8.setActionCommand("ring1");
jm3.add(jmi8);
jmi9 = new JMenuItem("静音");
jmi9.addActionListener(this);
jmi9.setActionCommand("ring2");
jm3.add(jmi9);
jmb.add(jm3);

jm4 = new JMenu("帮助 ", true);
jmi10=new JMenuItem("使用说明");
jmi10.addActionListener(this);
jmi10.setActionCommand("help");
jm4.add(jmi10);
jmb.add(jm4);
jp2.add(jmb);

contentPane.add(jp2, BorderLayout.NORTH);

jp3 = new JPanel();
jl1 = new JLabel("闹铃时间");
jl1.setFont(new Font("楷体_GB2312", Font.BOLD, 18));
time = new JTextField("00:00", 5);
alarm = time.getText();
jb = new JButton("修改闹铃时间");
jb.addActionListener(this);
jb.setActionCommand("CC");
jp3.add(jl1);
jp3.add(time);
jp3.add(jb);
contentPane.add(jp3, BorderLayout.SOUTH);

ClockPanel clock = new ClockPanel();
contentPane.add(clock, BorderLayout.CENTER);

// 窗体添加事件监听，监听秒表的触发
ActionListener taskPerformer = new ActionListener() {
public void actionPerformed(ActionEvent evt) {
repaint();
}
};
new Timer(delay, taskPerformer).start();
}

/**
* <br>
* 方法说明：绘制图形
*/

Color C1 = Color.lightGray;// 外圈颜色
Color C2 = Color.black;// 边线颜色
Color C3 = Color.magenta;// 内盘颜色
Color C4 = Color.blue;// 背景颜色
Color C5 = Color.yellow;// 秒针颜色
Color C6 = Color.green;// 分针颜色
Color C7 = Color.red;//时针颜色
public class ClockPanel extends JPanel {
public void paint(Graphics g) {
h = getSize().height - 200;
// 绘制圆形
g.setColor(C1);
g.fillOval(L0 + 30, T0 + 30, h - 60, h - 60);
g.setColor(C2);
g.drawOval(L0 + 31, T0 + 31, h - 62, h - 62);
g.setColor(C3);
g.fillOval(L0 + 50, T0 + 50, h - 100, h - 100);
g.setColor(C2);
g.drawOval(L0 + 51, T0 + 51, h - 102, h - 102);

r = h / 2 - 30;
x0 = 30 + r - 5 + L0;
y0 = 30 + r - 5 - T0;
ang = 60;
for (int i = 1; i <= 12; i++) {
x = (int) ((r - 10) * Math.cos(RAD * ang) + x0);
y = (int) ((r - 10) * Math.sin(RAD * ang) + y0);
g.drawString("" + i, x, h - y);
ang -= 30;
}
x0 = 30 + r + L0;
y0 = 30 + r + T0;
g.drawString("指针式时钟", 215, 200);

// 获取时间
now = Calendar.getInstance();
hh = now.get(Calendar.HOUR_OF_DAY);// 小时
mm = now.get(Calendar.MINUTE);// 分钟
ss = now.get(Calendar.SECOND);// 秒
g.setColor(C4);
g.fillRect(5, 550, 150, 30);// 填充的矩形
g.setColor(C6);
if (hh < 10)
st = "0" + hh;
else
st = "" + hh;
if (mm < 10)
st = st + ":0" + mm;
else
st = st + ":" + mm;
if(alarm.equals(st))
{
if(toolkit!=null)
toolkit.beep();
else {}
}
if (ss < 10)
st = st + ":0" + ss;
else
st = st + ":" + ss;
{
g.setFont(new Font("华文楷体", Font.BOLD, 16));
g.drawString("系统时间:" + st, 10, 570);
}

// 计算时间和图形的关系
sdo = 90 - ss * 6;
mdo = 90 - mm * 6;
hdo = 90 - hh * 30 - mm / 2;
// 擦除秒针
if (old_X > 0) {
g.setColor(C3);
} else {
old_M = mdo;
old_H = hdo;
}
// 绘制秒针
g.setColor(C5);
x = (int) ((r - 26) * Math.cos(RAD * sdo) + x0);
y = (int) ((r - 26) * Math.sin(RAD * sdo) + y0) - 2 * T0;
g.drawLine(x0, y0, x, (h - y));

old_X = x;
old_Y = y;

// 擦除分针和时针
if (mdo != old_M) {
g.setColor(C3);
old_M = mdo;
}
if (hdo != old_H) {
g.setColor(C3);
old_H = hdo;
}
// 绘制分针
g.setColor(C6);
x = (int) ((r - 50) * Math.cos(RAD * mdo) + x0);
y = (int) ((r - 50) * Math.sin(RAD * mdo) + y0) - 2 * T0;
g.drawLine(x0, y0, x, (h - y));
// 绘制时针
g.setColor(C7);
x = (int) ((r - 90) * Math.cos(RAD * hdo) + x0);
y = (int) ((r - 90) * Math.sin(RAD * hdo) + y0) - 2 * T0;
g.drawLine(x0, y0, x, (h - y));
} // end paint
}

// 闹铃时间的判断及实现
// 闹铃声音的实现

public void actionPerformed(ActionEvent e) {
// JMenuItem m = (JMenuItem) e.getSource();

if (e.getActionCommand() == "CC") {
int newHou, newMin;
char c;

String getTime = JOptionPane.showInputDialog(this, "请输入闹铃时间格式如：", "00:00");
repaint();

//如果撤消设置时间，就什么打印null
if(getTime==null)
System.out.println(getTime);
// dispose();

judge: if (getTime != null) {
//打印输入的设置的时间
System.out.println(getTime);
// 判断输入的是不是5位字符
if (getTime.length() != 5) {
JOptionPane.showMessageDialog(time, "格式错误\n请按格式输入5位数字", "Error",
JOptionPane.ERROR_MESSAGE);
repaint();
break judge;
}

// 判断输入的是不是数字
for (int i = 0; i < (getTime.length()); i++) {
c = getTime.charAt(i);
if (i == 2 && !Character.isDigit(c))
continue;
// 判断当前字符,如果不是数字则跳出该事件
if (i != 2 && !Character.isDigit(c)) {
JOptionPane.showMessageDialog(this, "格式错误\n请按格式输入5位数字",
"Error",JOptionPane.ERROR_MESSAGE);
repaint();
break judge;
}
}
char[] hour = { getTime.charAt(0), getTime.charAt(1) };
char[] minute = { getTime.charAt(3), getTime.charAt(4) };
newHou = Integer.parseInt(String.valueOf(hour));
newMin = Integer.parseInt(String.valueOf(minute));
if (newHou >= 24 || newHou < 0) {
JOptionPane.showMessageDialog(this, "格式错误\n小时应该是不小于0不大于23的正数",
"Error", JOptionPane.ERROR_MESSAGE);
repaint();
break judge;
}
if (newMin >= 60 || newHou < 0) {
JOptionPane.showMessageDialog(this, "格式错误\n分钟应该是小于60的正数", "Error",
JOptionPane.ERROR_MESSAGE);
repaint();
break judge;
}
new SetTime(newHou, newMin);
}
}

if (e.getActionCommand() == "ring1") {
toolkit=Toolkit.getDefaultToolkit();
}
if(e.getActionCommand() == "ring2"){
System.out.println("静音");
toolkit=null;

}

if (e.getActionCommand() == "color1") {
String color;
Color c;
System.out.println("color1");
color = JOptionPane.showInputDialog(this, "请输入喜欢的外圈颜色（0--255）", "128");
if (color == null) {
} else {
if (Integer.parseInt(color) < 0
|| Integer.parseInt(color) > 255)
JOptionPane.showInputDialog(this, "请输入喜欢的外圈颜色（0--255）", "128");
else {
c = new Color(Integer.parseInt(color));
C1 = c;
}
}
}
if(e.getActionCommand() == "color2"){
String color;
Color c;
System.out.println("color2");
color = JOptionPane.showInputDialog(this, "请输入喜欢的边线颜色（0--255）", "128");
if(color==null){}
else{if (Integer.parseInt(color) < 0|| Integer.parseInt(color) > 255)
JOptionPane.showInputDialog(this, "请输入喜欢的边线颜色（0--255）", "128");
else {
c = new Color(Integer.parseInt(color));
C2 = c;
}
}
}
if(e.getActionCommand() == "color3"){
String color;
Color c;
System.out.println("color3");
color = JOptionPane.showInputDialog(this, "请输入喜欢的内盘颜色（0--255）", "128");
if(color==null){}
else{if (Integer.parseInt(color) < 0|| Integer.parseInt(color) > 255)
JOptionPane.showInputDialog(this, "请输入喜欢的内盘颜色（0--255）", "128");
else {
c = new Color(Integer.parseInt(color));
C3 = c;
}
}
}

if(e.getActionCommand() == "color4"){
String color;
Color c;
System.out.println("color4");
color = JOptionPane.showInputDialog(this, "请输入喜欢的背景颜色（0--255）", "128");
if(color==null){}
else{if (Integer.parseInt(color) < 0|| Integer.parseInt(color) > 255)
JOptionPane.showInputDialog(this, "请输入喜欢的背景颜色（0--255）", "128");
else {
c = new Color(Integer.parseInt(color));
C4 = c;
}
}
}
if(e.getActionCommand() == "color5"){
String color;
Color c;
System.out.println("color5");
color = JOptionPane.showInputDialog(this, "请输入喜欢的秒针颜色（0--255）", "128");
if(color==null){}
else{if (Integer.parseInt(color) < 0|| Integer.parseInt(color) > 255)
JOptionPane.showInputDialog(this, "请输入喜欢的秒针颜色（0--255）", "128");
else {
c = new Color(Integer.parseInt(color));
C5 = c;
}
}
}
if(e.getActionCommand() == "color6"){
String color;
Color c;
System.out.println("color6");
color = JOptionPane.showInputDialog(this, "请输入喜欢的分针颜色（0--255）", "128");
if(color==null){}
else{if (Integer.parseInt(color) < 0|| Integer.parseInt(color) > 255)
JOptionPane.showInputDialog(this, "请输入喜欢的分针颜色（0--255）", "128");
else {
c = new Color(Integer.parseInt(color));
C6 = c;
}
}
}

if(e.getActionCommand() == "color7"){
String color;
Color c;
System.out.println("color7");
color = JOptionPane.showInputDialog(this, "请输入喜欢的时针颜色（0--255）", "128");
if(color==null){}
else{if (Integer.parseInt(color) < 0|| Integer.parseInt(color) > 255)
JOptionPane.showInputDialog(this, "请输入喜欢的时针颜色（0--255）", "128");
else {
c = new Color(Integer.parseInt(color));
C7 = c;
}
}
}

if(e.getActionCommand() == "help"){
String help;
help = JOptionPane.showInputDialog(this, "输入quit退出该闹钟的使用", "这是运行在Java中的指针式时钟");
if(help.equals("quit"))
dispose();
else {}
// timer.restart();
}
}

class SetTime {
String Hour;
String Minute;

public SetTime() { }
public SetTime(int hour, int minute) {
// 当时间参数小于10的时候在前面添加字符0
if (hour < 10) {
Hour = "0" + String.valueOf(hour);
} else {
Hour = "" + String.valueOf(hour);
}
if (minute < 10) {
Minute = "0" + String.valueOf(minute);
} else {
Minute = "" + String.valueOf(minute);
}
alarm = Hour + ":" + Minute;
time.setText(alarm);
repaint();
}
}
}

㈣ 急需要一个简单的JAVA闹钟程序

写了一个，也尽量在你可能不懂的地方添加注释了。不过其实注释越多不见得越好，因为有时你太在意注释反而没弄清整体的代码结构。

importjava.awt.BorderLayout;
importjava.awt.FlowLayout;
importjava.awt.Font;
importjava.awt.Frame;
importjava.awt.GridLayout;
importjava.awt.event.ActionEvent;
importjava.awt.event.ActionListener;
importjava.awt.event.KeyEvent;
importjava.awt.event.KeyListener;
importjava.io.IOException;
importjava.text.DateFormat;
importjava.text.SimpleDateFormat;
importjava.util.Calendar;
importjava.util.Timer;
importjava.util.TimerTask;

importjavax.sound.sampled.AudioInputStream;
importjavax.sound.sampled.AudioSystem;
importjavax.sound.sampled.Clip;
importjavax.sound.sampled.LineEvent;
importjavax.sound.sampled.LineListener;
importjavax.sound.sampled.LineUnavailableException;
importjavax.sound.sampled.UnsupportedAudioFileException;
importjavax.swing.JButton;
importjavax.swing.JDialog;
importjavax.swing.JFrame;
importjavax.swing.JLabel;
importjavax.swing.JPanel;
importjavax.swing.JTextField;
/**
*闹钟主界面
*/
{
	privatestaticfinalintLOOP_COUNT=5;//重复播放的次数
	privateJLabellabelClock,labelAlarm,labelNextAlarm;
	privateJButtonbtnSet,btnClose;
	privateSetDialogsetDialog;
	privateJPaneltopPanel,alarmPanel;
	privateTimertimer;
	privateClipclip;
	privateCalendaralarmCal;
	privatebooleantimeReached=true;
	privateDateFormatdf=newSimpleDateFormat("HH:mm");
	
	publicAlarmClock(){
		super("闹钟");
	}
	
	publicvoidlaunch(){
		setSize(400,300);
		setVisible(true);
		setDefaultCloseOperation(EXIT_ON_CLOSE);
		
		getContentPane().setLayout(newBorderLayout());//利用边界布局将界面分割成上中下三部分
		labelAlarm=newJLabel("闹钟定时已到！");
		btnClose=newJButton("确定");
		labelNextAlarm=newJLabel();//指示下一次闹钟时间
		alarmPanel=newJPanel(newFlowLayout(FlowLayout.CENTER));//顶部提示栏提示闹钟时间已到，和确定按钮
		alarmPanel.add(labelAlarm);
		alarmPanel.add(btnClose);
		
		topPanel=newJPanel(newGridLayout(2,1));
		topPanel.add(alarmPanel);
		topPanel.add(labelNextAlarm);
		alarmPanel.setVisible(false);//初始隐藏顶部提示栏
		
		labelClock=newJLabel();
		Fontfont=newFont(Font.SERIF,Font.PLAIN,48);//中间的倒计时文本用大号字体展示
		labelClock.setFont(font);
		labelClock.setHorizontalAlignment(JLabel.CENTER);//文本居中
		btnSet=newJButton("设置");
		
		getContentPane().add(topPanel,BorderLayout.NORTH);//界面顶部
		getContentPane().add(labelClock,BorderLayout.CENTER);//界面中部
		getContentPane().add(btnSet,BorderLayout.SOUTH);//界面底部
		
		btnSet.addActionListener(this);//设置按钮的点击事件
		btnClose.addActionListener(this);//顶部确定按钮的点击事件
		setLocationRelativeTo(null);//界面居中
		setDialog=newSetDialog(this);//初始化设置对话框

		try{//初始化闹钟声音
			//目前发现wav格式的文件是可以支持的，mp3不支持
			AudioInputStreamais=AudioSystem.getAudioInputStream(
					AlarmClock.class.getResource("/res/alarm.wav"));
			clip=AudioSystem.getClip();
			clip.open(ais);
			ais.close();
			intloop=LOOP_COUNT<=0?1:LOOP_COUNT;
			finallongtotalFrames=ais.getFrameLength()*loop;
			clip.addLineListener(newLineListener(){
				@Override
				publicvoipdate(LineEvente){
					//当闹钟音乐播放结束时，自动隐藏顶部提示栏
					if(e.getFramePosition()>=totalFrames){
						stopAlarm();
					}
				}
			});
		}catch(){
			e.printStackTrace();
		}catch(IOExceptione){
			e.printStackTrace();
		}catch(LineUnavailableExceptione){
			e.printStackTrace();
		}
		initTimer();
	}

	publicstaticvoidmain(String[]args){
		newAlarmClock().launch();//启动主界面
	}

	@Override
	publicvoidactionPerformed(ActionEvente){
		Objectsource=e.getSource();
		if(source==btnSet){//点击设置按钮时弹出设置界面，以模对话框显示
			setDialog.setVisible(true);
		}elseif(source==btnClose){//点击顶部确定按钮时隐藏顶部提示栏
			stopAlarm();
		}
	}
	
	privatevoidinitTimer(){
		timer=newTimer();//初始化倒计时任务
		//开始倒计时
		timer.scheleAtFixedRate(newTimerTask(){
			@Override
			publicvoidrun(){
				Calendarcal=Calendar.getInstance();
				inthour=cal.get(Calendar.HOUR_OF_DAY);
				intmin=cal.get(Calendar.MINUTE);
				intsec=cal.get(Calendar.SECOND);
				//设置倒计时文本
				labelClock.setText(String.format("%02d:%02d:%02d",hour,min,sec));
				if(null!=alarmCal&&!timeReached){
					intalarmHour=alarmCal.get(Calendar.HOUR_OF_DAY);
					intalarmMin=alarmCal.get(Calendar.MINUTE);
					if(alarmHour==hour&&alarmMin==min){//到时间时播放声音
						timeReached=true;
						System.out.println("Timeover");
						startAlarm();
					}
				}
			}
		},0,1000L);//每隔1秒刷新倒计时文本
	}
	
	/**
	*开始计时
	*@paramhour
	*@paramminute
	*/
	publicvoidstartTimer(inthour,intminute){
		alarmCal=Calendar.getInstance();
		alarmCal.set(Calendar.HOUR_OF_DAY,hour);
		alarmCal.set(Calendar.MINUTE,minute);
		labelNextAlarm.setText("下次闹钟时间："+df.format(alarmCal.getTime()));
		timeReached=false;
	}
	
	/**
	*取消倒计时任务
	*/
	publicvoidcancelTimer(){
		labelNextAlarm.setText("");
		alarmCal=null;
	}
	
	privatevoidstartAlarm(){//开始播放提示音
		if(null!=clip){
			alarmPanel.setVisible(true);//显示顶部提示栏
			clip.setFramePosition(0);//将音频帧重置为第0帧
			clip.loop(LOOP_COUNT);//开始循环播放
		}
		labelNextAlarm.setText("");
	}
	privatevoidstopAlarm(){//停止播放提示音
		if(null!=clip&&clip.isRunning()){
			clip.stop();//结束播放
		}
		labelNextAlarm.setText("");
		alarmPanel.setVisible(false);//隐藏顶部提示栏
	}
	
	/**
	*闹钟设置页面
	*/
	,ActionListener{
		privateJLabellabelHour,labelMin;
		privateJTextFieldtextHour,textMin;
		privateJPanelmainPanel,labelPanel,buttonPanel;
		privateJButtonbtnOk,btnCancel,btnBack;
		privateCalendarcal=Calendar.getInstance();
		
		publicSetDialog(Frameframe){
			super(frame);
			setTitle("设置");
			setModal(true);//设置为模窗口，就是说在本弹窗未消失时不允许点击主界面。
			setSize(300,150);
			//显示时分
			labelHour=newJLabel("时");
			labelMin=newJLabel("分");
			labelHour.setHorizontalAlignment(JLabel.CENTER);
			labelMin.setHorizontalAlignment(JLabel.CENTER);
			textHour=newJTextField();
			textMin=newJTextField();
			//上面的部分用网格布局将各组件以2x2的格子放进去
			labelPanel=newJPanel(newGridLayout(2,2));
			labelPanel.add(labelHour);
			labelPanel.add(labelMin);
			labelPanel.add(textHour);
			labelPanel.add(textMin);
			//时分输入框添加按键监听，只允许输入数字
			textHour.addKeyListener(this);
			textMin.addKeyListener(this);
			
			//初始化按钮
			btnOk=newJButton("确定");
			btnCancel=newJButton("取消");
			btnBack=newJButton("返回");
			//下面的按钮依次居中放进去
			buttonPanel=newJPanel(newFlowLayout(FlowLayout.CENTER));
			buttonPanel.add(btnBack);
			buttonPanel.add(btnCancel);
			buttonPanel.add(btnOk);
			//初始化主面板，将主面板分割为上下两部分
			mainPanel=newJPanel(newBorderLayout());
			mainPanel.add(labelPanel,BorderLayout.CENTER);//上面显示时分的组件
			mainPanel.add(buttonPanel,BorderLayout.SOUTH);//下面排列三个按钮
			setContentPane(mainPanel);
			//设置按钮监听
			btnBack.addActionListener(this);
			btnOk.addActionListener(this);
			btnCancel.addActionListener(this);

			cal.add(Calendar.HOUR,1);//默认设置为当前时间加1小时的整点时间
			cal.set(Calendar.MINUTE,0);
			inthour=cal.get(Calendar.HOUR_OF_DAY);
			intmin=cal.get(Calendar.MINUTE);
			textHour.setText(String.format("%02d",hour));
			textMin.setText(String.format("%02d",min));
			setLocationRelativeTo(frame);
		}

		@Override
		publicvoidkeyPressed(KeyEventarg0){
		}
		@Override
		publicvoidkeyReleased(KeyEventarg0){
		}
		@Override
		publicvoidkeyTyped(KeyEvente){
			intkeyChar=e.getKeyChar();
if(keyChar>=KeyEvent.VK_0&&keyChar<=KeyEvent.VK_9){
}else{//如果输入的不是数字则屏蔽输入
e.consume();//关键，屏蔽掉非法输入
}
		}

		@Override
		publicvoidactionPerformed(ActionEvente){
			Objectsource=e.getSource();
			if(source==btnOk){//如果点击了确定按钮，则开始计时
				inthour=0,min=0;
				try{
					hour=Integer.parseInt(textHour.getText());
				}catch(NumberFormatExceptione1){
				}
				try{
					min=Integer.parseInt(textMin.getText());
				}catch(NumberFormatExceptione1){
				}
				startTimer(hour,min);
				setVisible(false);
			}elseif(source==btnCancel){//点击取消按钮时取消计时
				cancelTimer();
				setVisible(false);
			}elseif(source==btnBack){//点击返回按钮时什么也不做，直接关闭设置界面
				setVisible(false);
			}
		}
	}
}

用到的音频文件是wav格式的，你要注意mp3格式的是肯定不行的，其它格式行不行你可以自己试试。wav文件我传到附件上吧，你如果觉得太大的话也可以自己弄一个放到指定目录，记得重命名或修改代码，然后再重新编译运行。