给你个做好了的Java的源程序的记事本,自己看看就行了的,不怎么难的---
import java.awt.*;
import java.awt.event.*;
import java.io.*;
import javax.swing.*;
public class MyNotepad implements ActionListener{
private JFrame frame=new JFrame("新记事本");
private JTextArea jta=new JTextArea();
private String result="";
private boolean flag=true;
private File f;
private JButton jb=new JButton("开始");
private JButton jbt=new JButton("替换为");
private JButton jba=new JButton("全部替换");
private Icon ic=new ImageIcon("D:\\java课堂笔记\\GUI\\11.gif");
private String value;
private int start=0;
private JFrame jf=new JFrame("查找");
private JFrame jfc=new JFrame("替换");
@Override
public void actionPerformed(ActionEvent e) {
String comm=e.getActionCommand();
if("新建".equals(comm)){
if(!(frame.getTitle().equals("新记事本"))){
if(!flag){
write();
newNew();
}else{
JFileChooser jfc=new JFileChooser("D:\\java课堂笔记");
int returnVal = jfc.showDialog(null,"保存为");
if(returnVal == JFileChooser.APPROVE_OPTION) {//选择文件后再执行下面的语句,保证了程序的健壮性
f=jfc.getSelectedFile();
flag=false;
}
}else if(!(jta.getText().isEmpty())){
}else if("打开".equals(comm)){
jfc.setDialogType(JFileChooser.OPEN_DIALOG);
int returnVal = jfc.showOpenDialog(null);
frame.setTitle(f.getName());
result=read();
value=result;
jta.setText(result);
}else if("保存".equals(comm)){
if(flag){
}else if("另存".equals(comm)){
int returnVal = jfc.showDialog(null,"另存");
}else if("退出".equals(comm)){
System.exit(0);
}else if("撤销".equals(comm)){
jta.setText(value);
}else if("剪切".equals(comm)){
value=jta.getText();
jta.cut();
}else if("复制".equals(comm)){
jta.copy();
}else if("粘贴".equals(comm)){
jta.paste();
}else if("删除".equals(comm)){
jta.replaceSelection(null);
}else if("全选".equals(comm)){
jta.selectAll();
}else if("查找".equals(comm)){
jf.add(jtf,BorderLayout.CENTER);
jf.add(jb,BorderLayout.SOUTH);
jf.pack();
jf.setVisible(true);
jf.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
}else if("替换".equals(comm)){
JLabel jl1=new JLabel("查找内容:");
jfc.setLayout(gl);
jfc.add(jl1);
jfc.add(jtf);
jfc.add(jb);
jfc.add(jt);
jfc.add(jbt);
jfc.add(jba);
jfc.pack();
jfc.setVisible(true);
jfc.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
}else if("版本".equals(comm)){
JDialog jd=new JDialog(frame,"关于对话框");
JLabel l=new JLabel("哈哈哈哈哈哈哈哈哈哈呵呵呵呵呵呵呵呵呵呵呵呵呵");
jd.add(l,BorderLayout.CENTER);
jd.setVisible(true);
//jd.pack();
jd.setDefaultCloseOperation(JDialog.DISPOSE_ON_CLOSE);
}else if("开始".equals(comm)||"下一个".equals(comm)){
String temp=jtf.getText();
int s=value.indexOf(temp,start);
if(value.indexOf(temp,start)!=-1){
jta.setSelectionStart(s);
jta.setSelectionEnd(s+temp.length());
jta.setSelectedTextColor(Color.GREEN);
start=s+1;
jb.setText("下一个");
//value=value.substring(s+temp.length());//不能截取字串
}else {
JOptionPane.showMessageDialog(jf, "查找完毕!", "提示", 0, ic);
jf.dispose();
}else if("替换为".equals(comm)){
jta.replaceSelection(jt.getText());
}else if("全部替换".equals(comm)){
String temp=jta.getText();
temp=temp.replaceAll(jtf.getText(), jt.getText());
jta.setText(temp);
public String read(){
String temp="";
try {
FileInputStream fis = new FileInputStream(f.getAbsolutePath());
while(true){
int num=fis.read(b);
if(num==-1)break;
temp=temp+new String(b,0,num);
fis.close();
} catch (Exception e1) {
e1.printStackTrace();
return temp;
public void write(){
FileOutputStream fos=new FileOutputStream(f);
fos.write(jta.getText().getBytes());
fos.close();
} catch (Exception e) {
e.printStackTrace();
public void newNew(){
frame.dispose();
new MyNotepad();
flag=true;
public MyNotepad(){
JMenuBar jmb=new JMenuBar();
String[][] menuItemLab={{"新建","打开","保存","另存","退出"},
{"撤销","剪切","复制","粘贴","删除","全选","查找","替换"},
{"版本"}};
for(int i=0;imenuLab.length;i++){
JMenu menu=new JMenu(menuLab[i]);
jmb.add(menu);
for(int j=0;jmenuItemLab[i].length;j++){
JMenuItem jmi=new JMenuItem(menuItemLab[i][j]);
menu.add(jmi);
jmi.addActionListener(this);
frame.setJMenuBar(jmb);
jta.setLineWrap(true);//自动换行
JScrollPane jsp=new JScrollPane(jta);//滚动窗口面板
frame.add(jsp);
jb.addActionListener(this);
jbt.addActionListener(this);
jba.addActionListener(this);
frame.setVisible(true);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
public static void main(String[] args) {
public class TestStar {
String star = "*";
if (i == 0) {
System.out.print(" " + star);
System.out.println();
if (i == 1) {
System.out.print(" ");
System.out.print(" " + star + " ");
是好使的 但是我没找到画五角星有什么规律（五角星好象不是正规图形吧?）如果还有什么要求的话 补充问题(如果是用*填充所有的东西 不包括 " "的话 我可以重新再给你写一个)
// My car shop.java
import javax.swing.border.*;
public class carshop extends JFrame
{
// JPanel to hold all pictures
private JPanel windowJPanel;
private String[] cars = { "","阿斯顿马丁", "美洲虎", "凯迪拉克",
"罗孚", "劳斯莱斯","别克"};
// JLabels for first snack shown
private JLabel oneJLabel;
private JLabel oneIconJLabel;
// JLabels for second snack shown
private JLabel twoJLabel;
private JLabel twoIconJLabel;
// JLabels for third snack shown
private JLabel threeJLabel;
private JLabel threeIconJLabel;
// JLabels for fourth snack shown
private JLabel fourJLabel;
private JLabel fourIconJLabel;
// JLabels for fifth snack shown
private JLabel fiveJLabel;
private JLabel fiveIconJLabel;
// JLabels for sixth snack shown
private JLabel sixJLabel;
private JLabel sixIconJLabel;
// JLabel and JTextField for user input
private JLabel inputJLabel;
private JComboBox selectCountryJComboBox;
// JButton to enter user input
private JButton enterJButton;
//JButton to clear the components
private JButton clearJButton;
// no-argument constructor
public carshop()
createUserInterface();
// create and position GUI components; register event handlers
private void createUserInterface()
// get content pane for attaching GUI components
Container contentPane = getContentPane();
// enable explicit positioning of GUI components
contentPane.setLayout( null );
// set up windowJPanel
windowJPanel = new JPanel();
windowJPanel.setBorder( new LineBorder( Color.BLACK ) );
windowJPanel.setLayout( null );
contentPane.add( windowJPanel );
// set up oneIconJLabel
oneIconJLabel = new JLabel();
oneIconJLabel.setIcon( new ImageIcon( "images/阿斯顿马丁.jpg" ) );
windowJPanel.add( oneIconJLabel );
// set up oneJLabel
oneJLabel = new JLabel();
oneJLabel.setText( "阿斯顿马丁" );
oneJLabel.setHorizontalAlignment( JLabel.CENTER );
windowJPanel.add( oneJLabel );
// set up twoIconJLabel
twoIconJLabel = new JLabel();
twoIconJLabel.setIcon( new ImageIcon( "images/美洲虎.jpg" ) );
windowJPanel.add( twoIconJLabel );
// set up twoJLabel
twoJLabel = new JLabel();
twoJLabel.setText( "美洲虎" );
twoJLabel.setHorizontalAlignment( JLabel.CENTER );
windowJPanel.add( twoJLabel );
// set up threeIconJLabel
threeIconJLabel = new JLabel();
threeIconJLabel.setIcon( new ImageIcon(
"images/凯迪拉克.jpg" ) );
windowJPanel.add( threeIconJLabel );
// set up threeJLabel
threeJLabel = new JLabel();
threeJLabel.setText( "凯迪拉克" );
threeJLabel.setHorizontalAlignment( JLabel.CENTER );
windowJPanel.add( threeJLabel );
// set up fourIconJLabel
fourIconJLabel = new JLabel();
fourIconJLabel.setIcon( new ImageIcon( "images/罗孚.jpg" ) );
windowJPanel.add( fourIconJLabel );
// set up fourJLabel
fourJLabel = new JLabel();
fourJLabel.setText( "罗孚" );
fourJLabel.setHorizontalAlignment( JLabel.CENTER );
windowJPanel.add( fourJLabel );
// set up fiveIconJLabel
fiveIconJLabel = new JLabel();
fiveIconJLabel.setIcon( new ImageIcon(
"images/劳斯莱斯.jpg" ) );
windowJPanel.add( fiveIconJLabel );
// set up fiveJLabel
fiveJLabel = new JLabel();
fiveJLabel.setText( "劳斯莱斯" );
fiveJLabel.setHorizontalAlignment( JLabel.CENTER );
windowJPanel.add( fiveJLabel );
// set up sixIconJLabel
sixIconJLabel = new JLabel();
sixIconJLabel.setIcon( new ImageIcon( "images/别克.jpg" ) );
windowJPanel.add( sixIconJLabel );
// set up sixJLabel
sixJLabel = new JLabel();
sixJLabel.setText( "别克" );
sixJLabel.setHorizontalAlignment( JLabel.CENTER );
windowJPanel.add( sixJLabel );
// set up enterJButton
enterJButton = new JButton();
enterJButton.setText( "Enter" );
contentPane.add( enterJButton );
enterJButton.addActionListener(
new ActionListener() // anonymous inner class
// event handler called when enterJButton is clicked
public void actionPerformed( ActionEvent event )
enterJButtonActionPerformed( event );
} // end anonymous inner class
); // end call to addActionListener
// set up clearJButton
clearJButton = new JButton();
clearJButton.setText( "Clear" );
contentPane.add( clearJButton );
// set up inputJLabel
inputJLabel = new JLabel();
inputJLabel.setText( "Please make selection:" );
contentPane.add( inputJLabel );
selectCountryJComboBox = new JComboBox( cars );
contentPane.add( selectCountryJComboBox );
// set up inputJTextField
clearJButton.addActionListener(
// event handler called when clearJButton is clicked
clearJButtonActionPerformed( event );
);
// set properties of application's window
setTitle( "My car Shop" ); // set title bar string
} // end method createUserInterface
private void clearJButtonActionPerformed( ActionEvent event )
// clear the JTextFields
} // end method clearJButtonActionPerformed
private void enterJButtonActionPerformed( ActionEvent event )
double z;
double c;
int x;
int y;
x=selectCountryJComboBox.getSelectedIndex();
double discountRate;
case 0:
discountRate = 0;
break;
case 1:
discountRate = 1;
default:
} // end switch statement
c=1-discountRate/100;
z=jiage[x]*y*c;
"它的单价是："+jiage[x]+"；" +"你购买该产品的数量是："+y+"," +"\n"+"该数量的折扣是："
+discountRate + " %"+"；"+"本次消费的总价格是："+z+"元"+"!"+"\n");
public static void main( String args[] )
carshop application = new carshop();
application.setDefaultCloseOperation( JFrame.EXIT_ON_CLOSE );
} // end method main
} // end class carshop
import java.applet.Applet;
import java.applet.AudioClip;
import java.awt.Dimension;
import java.awt.Font;
import java.awt.Toolkit;
import javax.sound.sampled.AudioFileFormat;
import javax.sound.sampled.AudioSystem;
import javax.swing.JFrame;
import javax.swing.JPanel;
import java.awt.Rectangle;
import javax.swing.BorderFactory;
import javax.swing.JButton;
import javax.swing.JOptionPane;
import javax.swing.JSlider;
import javax.swing.JLabel;
import javax.swing.SwingUtilities;
import javax.swing.UIManager;
import javax.swing.event.ChangeEvent;
import javax.swing.event.ChangeListener;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.KeyAdapter;
import java.awt.event.KeyEvent;
import java.io.File;
import java.util.Vector;
public class Frame extends JFrame implements Runnable {
JPanel contentPane;
JPanel jPanel1 = new JPanel();
JButton jButton1 = new JButton();
JSlider jSlider1 = new JSlider();
JLabel jLabel1 = new JLabel();
int zhengque = 0, cuowu = 0;
int rush_count = 0; //记录关数
char list[] = { 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L',
'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y',
Vector number = new Vector();
String paiduan = "true";
AudioClip Musci_anjian, Music_shibai, Music_chenggong;
public Frame() {
setDefaultCloseOperation(EXIT_ON_CLOSE);
//-----------------声音文件---------------------
Musci_anjian = Applet.newAudioClip(new File("sounds//anjian.wav")
.toURL());
Music_shibai = Applet.newAudioClip(new File("sounds//shibai.wav")
Music_chenggong = Applet.newAudioClip(new File(
"sounds//chenggong.wav").toURL());
//---------------------------------------
jbInit();
} catch (Exception exception) {
exception.printStackTrace();
/**
* Component initialization.
*
* @throws java.lang.Exception
*/
private void jbInit() throws Exception {
contentPane = (JPanel) getContentPane();
contentPane.setLayout(null);
setTitle("Frame Title");
jPanel1.setBorder(BorderFactory.createEtchedBorder());
jPanel1.setLayout(null);
jButton1.setText("开始");
jButton1.addActionListener(new Frame1_jButton1_actionAdapter(this));
jSlider1.setMaximum(100);
jSlider1.setMinimum(1);
jLabel1.setText("速度");
contentPane.add(jPanel1);
contentPane.add(jButton1);
contentPane.add(jSlider1);
contentPane.add(jLabel1);
this.addKeyListener(new MyListener());
jButton1.addKeyListener(new MyListener());
jSlider1.addKeyListener(new MyListener());
jSlider1.addChangeListener(new ChangeListener() {
public void stateChanged(ChangeEvent e) {
rapidity = jSlider1.getValue();
});
public void run() {
number.clear();
zhengque = 0;
cuowu = 0;
paiduan = "true";
while (count = rush[rush_count]) {
Thread t = new Thread(new Tthread());
t.start();
count += 1;
} catch (InterruptedException e) {
while (true) { // 等待最后一个字符消失
if (number.size() == 0) {
if (zhengque == 0) { // 为了以后相除..如果全部正确或者错误就会出现错误. 所以..
zhengque = 1;
if (cuowu == 0) {
cuowu = 1;
if (paiduan.equals("true")) { // 判断是否是自然结束
JOptionPane.showMessageDialog(null, "恭喜你过关了");
rush_count += 1; // 自动加1关
if (rush_count rush.length) {
jSlider1.setValue(rapidity); // 选择位置
Thread t = new Thread(this);
} else {
JOptionPane.showMessageDialog(null, "牛B...你通关了..");
rush_count = 0;
count = 0;
JOptionPane.showMessageDialog(null, "请再接再励");
public void jButton1_actionPerformed(ActionEvent e) {
count = rush[rush_count] + 1;
paiduan = "flase";
class Tthread implements Runnable {
boolean fo = true;
int Y = 0, X = 0;
JLabel show = new JLabel();
jPanel1.add(show);
String parameter = list[(int) (Math.random() * list.length)] + "";
Bean bean = new Bean();
bean.setParameter(parameter);
bean.setShow(show);
number.add(bean);
show.setText(parameter);
while (fo) {
// ---------------------数字下移--------------------
Thread.sleep(rapidity);
fo = false;
for (int i = number.size() - 1; i = 0; i--) {
Bean bn = ((Bean) number.get(i));
if (parameter.equalsIgnoreCase(bn.getParameter())) {
cuowu += 1;
+ "个");
number.removeElementAt(i);
Music_shibai.play();
class MyListener extends KeyAdapter {
public void keyPressed(KeyEvent e) {
String uu = e.getKeyChar() + "";
for (int i = 0; i number.size(); i++) {
Bean bean = ((Bean) number.get(i));
if (uu.equalsIgnoreCase(bean.getParameter())) {
zhengque += 1;
bean.getShow().setVisible(false);
Music_chenggong.play();
Musci_anjian.play();
UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
Frame frame = new Frame();
Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();
Dimension frameSize = frame.getSize();
if (frameSize.height screenSize.height) {
frameSize.height = screenSize.height;
if (frameSize.width screenSize.width) {
frameSize.width = screenSize.width;
private Frame adaptee;
this.adaptee = adaptee;
class Frame1_jButton1_actionAdapter implements ActionListener {
Frame1_jButton1_actionAdapter(Frame adaptee) {
adaptee.jButton1_actionPerformed(e);
class Bean {
String parameter = null;
JLabel show = null;
public JLabel getShow() {
return show;
public void setShow(JLabel show) {
this.show = show;
public String getParameter() {
return parameter;
public void setParameter(String parameter) {
this.parameter = parameter;
//要实现对象间的比较,就必须实现Comparable接口,它里面有个compareTo方法
//Comparable最好使用泛型,这样,无论是速度还是代码量都会减少
@SuppressWarnings("unchecked")
class Student implements ComparableStudent{
private String studentNo; //学号
private String studentName; //姓名
private double englishScore; //英语成绩
private double computerScore; //计算机成绩
private double mathScore; //数学成绩
private double totalScore; //总成绩
//空构造函数
public Student() {}
//构造函数
public Student(String studentNo,String studentName,double englishSocre,double computerScore,double mathScore) {
this.studentNo = studentNo;
this.studentName = studentName;
this.englishScore = englishSocre;
this.computerScore = computerScore;
this.mathScore = mathScore;
//计算总成绩
public double sum() {
this.totalScore = englishScore+computerScore+mathScore;
return totalScore;
//计算评测成绩
public double testScore() {
//实现compareTO方法
public int compareTo(Student student) {
double studentTotal = student.getTotalScore();
return totalScore==studentTotal?0:(totalScorestudentTotal?1:-1);
//重写toString方法
public String toString(){
return "学号："+this.getStudentNo()+" 姓名："+this.getStudentName()+" 英语成绩："+this.getEnglishScore()+" 数学成绩："+this.getMathScore()+" 计算机成绩："+this.getComputerScore()+" 总成绩："+this.getTotalScore();
//重写equals方法
public boolean equals(Object obj) {
if(obj == null){
return false;
if(!(obj instanceof Student)){
Student student = (Student)obj;
if(this.studentNo.equals(student.getStudentName())) { //照现实来说,比较是不是同一个学生,应该只是看他的学号是不是相同
return true;
/*以下为get和set方法,我个人认为,totalScore的set的方法没必要要,因为它是由其它成绩计算出来的
在set方法中,没设置一次值,调用一次sum方法,即重新计算总成绩
public String getStudentNo() {
return studentNo;
public void setStudentNo(String studentNo) {
sum();
public String getStudentName() {
return studentName;
public void setStudentName(String studentName) {
public double getEnglishScore() {
return englishScore;
public void setEnglishScore(double englishScore) {
this.englishScore = englishScore;
public double getComputerScore() {
return computerScore;
public void setComputerScore(double computerScore) {
public double getMathScore() {
return mathScore;
public void setMathScore(double mathScore) {
public double getTotalScore() {
//Student子类学习委员类的实现
class StudentXW extends Student {
//重写父类Student的testScore()方法
public StudentXW() {}
//StudentXW的构造函数
public StudentXW(String studentNo,String studentName,double englishSocre,double computerScore,double mathScore) {
super(studentNo,studentName,englishSocre,computerScore,mathScore);
//Student子类班长类的实现
class StudentBZ extends Student {
public StudentBZ() {}
public StudentBZ(String studentNo,String studentName,double englishSocre,double computerScore,double mathScore) {
//测试类
public class Test {
//生成若干个student类、StudentXW类、StudentBZ类
for(int i = 0 ; istudents.length; i++){
double avgScore = students[i].testScore();
System.out.println(students[i].getStudentName()+"学生的评测成绩为："+ avgScore+"分");
运行结果为：
class ConstructFrame extends JFrame
private static final long serialVersionUID = 1L;
int flag=0,fix=0,sum=1;
Boolean happy;
int flagsum=0;
Container c=getContentPane();
JButton buttonx;
ConstructFrame()
{ super("计算器");
c.setLayout(null);
c.setBackground(Color.blue);
c.add(text);
text.setHorizontalAlignment(JTextField.RIGHT);
final JButton buttonx=new JButton("BackSpace");
c.add(buttonx);
buttonx.addMouseListener(new MouseAdapter()
public void mousePressed(MouseEvent e)
int count=0;
String temp;
if(flag==0)
count=value1.length();
if(count!=1)
temp=value1.substring(0, count-1);
else
temp="0";
value1=temp;
text.setText(temp);
final JButton buttony=new JButton("CE");
c.add(buttony);
buttony.addMouseListener(new MouseAdapter()
value1="";
flag=0;
text.setText("0");
final JButton button1=new JButton("1");
c.add(button1);
button1.addMouseListener(new MouseAdapter()
value1=value1+1;
temp=value1;
final JButton button0=new JButton("0");
c.add(button0);
button0.addMouseListener(new MouseAdapter()
value1=value1+0;
final JButton buttonadd=new JButton(" + ");
c.add(buttonadd);
buttonadd.addMouseListener(new MouseAdapter()
flag=1;
fix=1;
flagsum=0;
final JButton buttonsubtract=new JButton(" - ");
c.add(buttonsubtract);
buttonsubtract.addMouseListener(new MouseAdapter()
final JButton buttoncheng=new JButton(" * ");
c.add(buttoncheng);
buttoncheng.addMouseListener(new MouseAdapter()
final JButton buttonchu=new JButton(" / ");
c.add(buttonchu);
buttonchu.addMouseListener(new MouseAdapter()
final JButton buttonequal=new JButton(" = ");
c.add(buttonequal);
buttonequal.addMouseListener(new MouseAdapter()
double temp=0;
temp1=Double.parseDouble(value1);
switch(fix)
result=Double.valueOf(temp).toString();
value1=result;
text.setText(result);
final JButton buttonpoint=new JButton(".");
c.add(buttonpoint);
buttonpoint.addMouseListener(new MouseAdapter()
{ if(flagsum==0)
if(flag==0 )
value1=value1+".";
flagsum=1;
JButton buttonz=new JButton("Start");
c.add(buttonz);
buttonz.addMouseListener(new MouseAdapter()
happy=true;
text.setText("0.");
happy=false;
text.setText("");
text.setEnabled(happy);
button1.setEnabled(happy);
button0.setEnabled(happy);
buttonx.setEnabled(happy);
buttony.setEnabled(happy);
buttonadd.setEnabled(happy);
buttonsubtract.setEnabled(happy);
buttonpoint.setEnabled(happy);
buttonequal.setEnabled(happy);
buttoncheng.setEnabled(happy);
buttonchu.setEnabled(happy);
sum++;
button1.setEnabled(false);
button0.setEnabled(false);
buttonx.setEnabled(false);
buttony.setEnabled(false);
buttonadd.setEnabled(false);
buttonsubtract.setEnabled(false);
buttonpoint.setEnabled(false);
buttonequal.setEnabled(false);
buttoncheng.setEnabled(false);
buttonchu.setEnabled(false);
text.setEnabled(false);
setVisible(true);
class MYMouseEvent extends MouseAdapter
value1=e.toString();
text.setText(value1);
class Calutator
public static void main(String[] args)
new ConstructFrame();
你自己慢慢的看吧！
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