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java编程华文楷体代码 java代码字体
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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();
}
}
}
求帮忙修改JAVA程序。由于是自学，有好多不理解的地方，所以弄了几个有错误程序，希望各位大侠指点一下
java高级没怎么用过，现在都是做web开发的，学java基础和一些web框架html之类东东了
帮忙看一下这个Java程序，主要是后面的那个按钮事件那儿，不知道哪儿错了
当输入为空时,这句话就错了
Double d = Double.valueOf(txt1.getText());
actionPerformed方法修改为
public void actionPerformed(ActionEvent e) {
String input = txt1.getText();
if (input != null !input.trim().isEmpty()) {
try {
Double d = Double.valueOf(input);
d = d + 10.0;
txt2.setText(d + "");
} catch (Exception e2) {
JOptionPane.showMessageDialog(null, "请输入正确的数字!",
"请输入正确的数字!", JOptionPane.ERROR_MESSAGE);
txt1.setText("");
txt2.setText("");
}
} else {
JOptionPane.showMessageDialog(null, "请输入数字!", "请输入数字!",
JOptionPane.ERROR_MESSAGE);
}
}
java编程华文楷体代码的介绍就聊到这里吧，感谢你花时间阅读本站内容，更多关于java代码字体、java编程华文楷体代码的信息别忘了在本站进行查找喔。
