实验八 图形用户界面与对话框.doc

实验八 图形用户界面与对话框1. 实验目的1、学会处理ActionEvent事件2、学会使用布局类3、学习焦点、鼠标和键盘事件4、学习使用输入和消息对话框2. 实验内容1、根据附录里的源代码，按照注释要求，完成代码填空，使程序能够运行得出结果。1) 实验1算术测试2) 实验2布局与日历3) 实验3华容道4) 实验4字体对话框5) 实验5计算平方根6) 实验6简易计算器2、设计编写程序完成以下任务。 1）修改实验1的代码，再增加“小学生”级别，并增加测试乘、除法的功能。2）编写一个应用程序，用户可以在一个文本框里输入数字字符，按Enter键后将数字放入一个文本区。当输入的数字大于1000时，弹出一个有模式的对话框，提示用户数字已经大于1000，是否继续将该数字放入文本区。3）编写应用程序，有一个标题为“移动”的窗口，窗口布局为null，在窗口中有两个按钮，单击一个按钮让另一个按钮移动。4）仿照操作系统中的简易计算机，自行设计一个能进行加减乘除运算的计算器。需要考虑先进性乘除运算再进行加减运算。3. 实验步骤略4. 评分标准1. A内容功能完善，编程风格好，人机接口界面好； 2. B内容功能完善，编程风格良好，人机接口界面良好；3. C完成必做内容；4. D能完成必做内容；5. E未按时完成必做内容，或者抄袭（雷同者全部为E）.参照书上实验按模版要求，将【代码】替换为Java程序代码，编写好完整的程序文档，最后运行得到的相关文件，把实验所得文件一起打包上交。（压缩包的文件名为：学号后三位和名字开头字母，如109zhhRAR|ZIP）附录：实验1 算术测试模板代码Teacher.javaimport java.util.Random;import java.awt.event.*;import javax.swing.*;public class Teacher implements ActionListenerint numberOne,numberTwo;String operator= ;boolean isRight;Random random;int maxInteger;JTextField textOne,textTwo,textResult;JLabel operatorLabel,message;Teacher()random=new Random();public void setMaxInteger(int n)maxInteger=n;public void actionPerformed(ActionEvent e)String str=e.getActionCommand();if(str.equals(getProblem)numberOne=random.nextInt(maxInteger)+1;numberTwo=random.nextInt(maxInteger)+1;double d=Math.random();if(d=0.5)operator=+;elseoperator=-;textOne.setText(+numberOne);textTwo.setText(+numberTwo);operatorLabel.setText(operator);message.setText(请回答);textResult.setText(null);else if(str.equals(answer)String answer=textResult.getText();tryint result=Integer.parseInt(answer);if(operator.equals(+)if(result=numberOne+numberTwo)message.setText(你回答正确);elsemessage.setText(你回答错误);else if(operator.equals(-)if(result=numberOne-numberTwo)message.setText(你回答正确);elsemessage.setText(你回答错误);catch(NumberFormatException ex)message.setText(请输入数字字符);public void setJTextField(JTextField.t)textOne =t0;textTwo =t1;textResult =t2;public void setJLabel(JLabel.label)operatorLabel=label0;message=label1;ComputerFrame.javaimport java.awt.*;import java.awt.event.*;import javax.swing.*;public class ComputerFrame extends JFrameJMenuBar menubar;JMenu choiceGrade;JMenuItem grade1,grade2;JTextField textOne,textTwo,textResult;JButton getProblem,giveAnswer;JLabel operatorLabel,message;Teacher teacherZhang;ComputerFrame()teacherZhang=new Teacher();teacherZhang.setMaxInteger(20);setLayout(new FlowLayout();menubar=new JMenuBar();choiceGrade=new JMenu(选择级别);grade1=new JMenuItem(幼儿级别);grade2=new JMenuItem(儿童级别);grade1.addActionListener(new ActionListener()public void actionPerformed(ActionEvent e)teacherZhang.setMaxInteger(10););grade2.addActionListener(new ActionListener()public void actionPerformed(ActionEvent e)teacherZhang.setMaxInteger(50););choiceGrade.add(grade1);choiceGrade.add(grade2);menubar.add(choiceGrade);setJMenuBar(menubar);/【代码1】 /创建textOne,其可见字符长是5textTwo=new JTextField(5);textResult=new JTextField(5);operatorLabel=new JLabel(+);operatorLabel.setFont(new Font(Arial,Font.BOLD,20);message=new JLabel(你还没有回答呢);getProblem=new JButton(获取题目);giveAnswer=new JButton(确认答案); add(getProblem); add(textOne); add(operatorLabel); add(textTwo); add(new Label(=); add(textResult); add(giveAnswer); add(message); textResult.requestFocus(); textOne.setEditable(false); textTwo.setEditable(false); getProblem.setActionCommand(getProblem); textResult.setActionCommand(answer); giveAnswer.setActionCommand(answer); teacherZhang.setJTextField(textOne,textTwo,textResult); teacherZhang.setJLabel(operatorLabel,message); /【代码2】/将teacherZhang注册为getProblem的ActionEvent事件监视器 /【代码3】/将teacherZhang注册为giveAnswer的ActionEvent事件监视器 /【代码4】/将teacherZhang注册为textResult的ActionEvent事件监视器 setVisible(true); validate(); setDefaultCloseOperation(DISPOSE_ON_CLOSE);MainClass.javapublic class MainClass public static void main(String args) ComputerFrame frame;frame=new ComputerFrame();frame.setTitle(算术测试);frame.setBounds(100,100,650,180);实验2 布局与日历模板代码CalendarBean.javaimport java.util.Calendar;public class CalendarBean String day; int year=2008,month=0; public int getYear() return year; public void setYear(int year) this.year = year; public int getMonth() return month; public void setMonth(int month) this.month = month; public String getCalendar() String a=new String42; Calendar 日历=Calendar.getInstance(); 日历.set(year,month-1,1); int 星期几=日历.get(Calendar.DAY_OF_WEEK)-1; int day=0; if(month=1|month=3|month=5|month=7|month=8|month=10|month=12) day=31; if(month=4|month=6|month=9|month=11) day=30; if(month=2) if(year%4=0)&(year%100!=0)|(year%400=0) day=29; else day=28; for(int i=星期几,n=1;i星期几+day;i+) ai=String.valueOf(n) ; n+; return a; CalendarFrame.javaimport java.awt.event.*;import javax.swing.*;import javax.swing.border.*;import java.awt.*;import java.util.*;public class CalendarFrame extends JFrame implements ActionListener JLabel labelDay=new JLabel42;JButton titleName=new JButton7;String name=日,一,二,三,四,五,六;JButton nextMonth,previousMonth;CalendarBean calendar;JLabel showMessage=new JLabel(,JLabel.CENTER);int year=2011,month=2;public CalendarFrame()JPanel pCenter=new JPanel();/【代码1】/将pCenter的布局设置为7行7列的GridLayout布局.for(int i=0;i7;i+)titleNamei=new JButton(namei);titleNamei.setBorder(new SoftBevelBorder(BevelBorder.RAISED);/【代码2】/pCenter中添加组件titleNameifor(int i=0;i42;i+)labelDayi=new JLabel(,JLabel.CENTER);labelDayi.setBorder(new SoftBevelBorder(BevelBorder.LOWERED);/【代码3】/pCenter中添加组件labelDayicalendar=new CalendarBean();nextMonth=new JButton(下月);previousMonth=new JButton(上月);nextMonth.addActionListener(this);previousMonth.addActionListener(this);JPanel pNoth=new JPanel(),pSouth=new JPanel();pNoth.add(previousMonth);pNoth.add(nextMonth);pSouth.add(showMessage);/【代码4】/将窗口pCenter添加到中央区域/【代码5】/将窗口pNoth添加到北面区域/【代码6】/将窗口pSouth添加到南面区域setYearAndMonth(year,month);setDefaultCloseOperation(DISPOSE_ON_CLOSE);public void setYearAndMonth(int y,int m)calendar.setYear(y);calendar.setMonth(m);String day= calendar.getCalendar();for(int i=0;i12)month=1;calendar.setMonth(month);String day=calendar.getCalendar();for(int i=0;i42;i+)labelDayi.setText(dayi);else if(e.getSource()=previousMonth)month=month-1;if(month1)month=12;calendar.setMonth(month);String day=calendar.getCalendar();for(int i=0;i42;i+)labelDayi.setText(dayi);showMessage.setText(日历:+calendar.getYear()+年+calendar.month+月);CalendarMainClass.javapublic class CalendarMainClass public static void main(String args) CalendarFrame frame=new CalendarFrame();frame.setBounds(100,100,360,300);frame.setVisible(true);frame.setYearAndMonth(2013,5);实验3 华容道模板代码MainClassHRR.javapublic class MainClassHRR public static void main(String args) Hua_Rong_Road HRR=new Hua_Rong_Road(); Person.javaimport java.awt.event.*;import java.awt.*;import javax.swing.*;public class Person extends JButton implements FocusListener int number;Color c=new Color(255,245,170);Font font=new Font(宋体,Font.BOLD,12);Person(int number,String s)super(s);setBackground(c);setFont(font);this.number=number;c=getBackground();addFocusListener(this);public void focusGained(FocusEvent e)setBackground(Color.red);public void focusLost(FocusEvent e)setBackground(c);Hua_Rong_Road.javaimport java.awt.event.*;import java.awt.*;import javax.swing.*;public class Hua_Rong_Road extends JFrame implements MouseListener,KeyListener, ActionListener Person person=new Person10;JButton left,right,above,below; JButton restart=new JButton(重新开始);public Hua_Rong_Road()init();setBounds(100,100,320,360);setVisible(true);setDefaultCloseOperation(DISPOSE_ON_CLOSE);validate();public void init()setLayout(null); add(restart);restart.setBounds(100,320,120,25);restart.addActionListener(this);String name=曹操,关羽,张,刘,周,黄,兵,兵,兵,兵;for(int k=0;kh/2)go(man,below); if(yh/2)go(man,above); if(xw/2)go(man,right);public void mouseReleased(MouseEvent e) public void mouseEntered(MouseEvent e) public void mouseExited(MouseEvent e) public void mouseClicked(MouseEvent e) public void go(Person man,JButton direction)boolean move=true;Rectangle manRect=man.getBounds();int x=man.getBounds().x;int y=man.getBounds().y;if(direction=below)y=y+50;else if(direction=above)y=y-50;else if(direction=left)x=x-50;else if(direction=right)x=x+50;manRect.setLocation(x,y);Rectangle directionRect=direction.getBounds();for(int k=0;k10;k+)Rectangle personRect=personk.getBounds();if(manRersects(personRect)&(man.number!=k)move=false;if(manRersects(directionRect)move=false; if(move=true)man.setLocation(x,y);public void actionPerformed(ActionEvent e)dispose(); new Hua_Rong_Road();实验4 字体对话框模板代码FontFamilyNames.javaimport java.awt.GraphicsEnvironment;public class FontFamilyNames String allFontName; public String getFontName() GraphicsEnvironment ge=GraphicsEnvironment.getLocalGraphicsEnvironment(); allFontName=ge.getAvailableFontFamilyNames(); return allFontName; FontDialog.javaimport java.awt.event.*;import java.awt.*;import javax.swing.*;public class FontDialog extends JDialog implements ItemListener,ActionListenerFontFamilyNames fontFamilyNames; int fontSize=38; String fontName; JComboBox fontSizeList,fontNameList; JLabel label; Font font; JButton yes,cancel; static int YES=1,NO=0; int state=-1; FontDialog(Frame f) super(f);setTitle(字体);font=new Font(宋体,Font.PLAIN,12); fontFamilyNames=new FontFamilyNames(); /【代码1】/当前对话框调用setModal(boolean b)设置为有模式 yes=new JButton(Yes); cancel=new JButton(cancel); yes.addActionListener(this); cancel.addActionListener(this); label=new JLabel(hello,奥运,JLabel.CENTER); fontSizeList=new JComboBox(); fontNameList=new JComboBox(); String name=fontFamilyNames.getFontName(); fontNameList.addItem(字体); for(int k=0;kname.length;k+) fontNameList.addItem(namek); fontSizeList.addItem(大小); for(int k=8;k=0)inputComplete=true;catch(NumberFormatException exp)/【代码2】/弹出消息对话框inputComplete=false;double sqrtRoot=Math.sqrt(result);System.out.println(result+平方根：+sqrtRoot);实验6 简易计算器模板代码UserFrm.javaimport java.awt.*;import java.awt.event.*;public class UserFrm extends Frame implements ActionListener private MenuBar jmb = new MenuBar();private MenuItem item = new MenuItem(退 出);public static Font font = new Font(宋体, 1, 16);public UserFrm(String title) throws HeadlessException super(title);/【代码1】/设置该Frame位置与大小，具体值为(100, 100, 250, 200)setVisible(true);Menu menu = new Menu(文 件);menu.add(item);item.setFont(font);Panel panelNorth = new Panel();/【代码2】/把panelNorth加入窗体的北区add(new Caculator(), BorderLayout.CENTER);item.addActionListener(this);jmb.add(menu);jmb.setFont(font);setMenuBar(jmb);/【代码3】/用匿名类的方式设计完成窗体关闭的监听和实现关闭的方法validate();public void actionPerformed(ActionEvent e) Object o = e.getSource();if (o = item)System.exit(1);public static void main(String args) new UserFrm(用户界面);class Caculator extends Panel implements ActionListener, KeyListener private TextField tf = new TextField();private float x = 0;private float y = 0;private int code = 0;private boolean enable;private boolean first;private String str = ;public Caculator() setLayout(new BorderLayout();enable = true;first = true;add(tf, BorderLayout.NORTH);Panel panel = new Panel();/【代码4】/把panel设置为GridLayout布局Button btn = null;/【代码5】/创建btn并把标题设为1;把btn加入panel中;设置该按钮的字体格式为UserFrm.font;设置输入确认监听;设置键盘输入监听/【代码6】/创建btn并把标题设为2;把btn加入panel中;设置该按钮的字体格式为UserFrm.font;设置输入确认监听;设置键盘输入监听/【代码7】/创建btn并把标题设为3;把btn加入panel中;设置该按钮的字体格式为UserFrm.font;设置输入确认监听;设置键盘输入监听/【代码8】/创建btn并把标题设为+;把btn加入panel中;设置该按钮的字体格式为UserFrm.fon