試驗九-圖形用戶界面與對話框

1、實驗九 圖形用戶界面與對話框1.實驗目的1、學會處理 ActionEvent事件2、學會使用布局類3、學習焦點、鼠標和鍵盤事件4、學習使用輸入和消息對話框2.實驗內(nèi)容1、根據(jù)附錄里的源代碼，按照注釋要求，完成代碼填空，使程序能夠運行 得出結(jié)果。1）實驗1算術測試2）實驗2布局與日歷3）實驗3華容道4）實驗4字體對話框5）實驗5計算平方根6）實驗6簡易計算器2、設計編寫程序完成以下任務。1 ）修改實驗1的代碼，再增加“小學生”級別，并增加測試乘、除法的 功能。2）編寫一個應用程序，用戶可以在一個文本框里輸入數(shù)字字符，按Enter 鍵后將數(shù)字放入一個文本區(qū)。當輸入的數(shù)字大于1000時，彈出一個有模

2、式的對話框，提示用戶數(shù)字已經(jīng)大于1000,是否繼續(xù)將該數(shù)字放入文本區(qū)。3）編寫應用程序，有一個標題為“移動”的窗口，窗口布局為 null , 在窗口中有兩個按鈕，單擊一個按鈕讓另一個按鈕移動。4）仿照操作系統(tǒng)中的簡易計算機，自行設計一個能進行加減乘除運算的 計算器。需要考慮先進性乘除運算再進行加減運算。.實驗步驟略.評分標準A內(nèi)容功能完善，編程風格好，人機接口界面好；B內(nèi)容功能完善，編程風格良好，人機接口界面良好；C完成必做內(nèi)容；D能完成必做內(nèi)容；E未按時完成必做內(nèi)容，或者抄襲（雷同者全部為E）.參照書上實驗按模版要求，將【代碼】替換為 Java程序代碼，編寫好完整 的程序文檔，最后運行得到的

3、相關文件，把實驗所得文件一起打包上交。（壓縮包的文件名為：學號后三位和名字開頭字母，如 109zhh. RAR|ZIP）附錄：實驗1算術測試模板代碼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 te

4、xtOne,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(maxInteg

5、er)+1; double d=Math.random();if(d=0.5)operator=+;else operator=-;textOne.setText(+numberOne);textTwo.setText(+numberTwo);operatorLabel.setText(operator); message.setText(情回答);textResult.setText(null);else if(str.equals(answer)String answer=textResult.getText();tryint result=Integer.parseInt(answer)

6、;if(operator.equals(+)if(result=numberOne+numberTwo) message.setText(你回答正確);else message.setText。你回答錯誤);else if(operator.equals(-)if(result=numberOne-numberTwo) message.setText(你回答正確);else message.setText(你回答錯誤);catch(NumberFormatException ex) message.setText(情輸入數(shù)字字符);public void setJTextField(JText

7、Field.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;JMenultem grade1,grade2;J

8、TextField 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(選擇級另U );grade1=new JMenuItem(幼兒級另 U);g

9、rade2=new JMenuItem(兒童級另 U);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);choice

10、Grade.add(grade2);menubar.add(choiceGrade);setJMenuBar(menubar);【代碼11/創(chuàng)建textOne,其可見字符長是 5textTwo=new JTextField(5);textResult=new JTextField(5);operatorLabel=new JLabel(+);operatorLabel.setFont(new Font(Arial,Font.BOLD,20);message=new JLabel(你還沒有回答呢);getProblem=new JButton(獲取題目)； giveAnswer=new JBut

11、ton(確認答案);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.

12、setActionCommand(answer);teacherZhang.setJTextField(textOne,textTwo,textResult);teacherZhang.setJLabel(operatorLabel,message);/【代碼2】將teacherZhang注冊為getProblem的ActionEvent事件監(jiān)視器 /【代碼3】將teacherZhang注冊為giveAnswer的ActionEvent事件監(jiān)視器 /【代碼4】將teacherZhang注冊為textResult的ActionEvent事件監(jiān)視器 setVisible(true);validat

13、e();setDefaultCloseOperation(DISPOSE_ON_CLOSE);MainClass.javapublic class MainClass public static void main(String args) ComputerFrame frame;frame=new ComputerFrame();frame.setTitle(算術測試);frame.setBounds(100,100,650,180);實驗2布局與日歷模板代碼CalendarBean.javaimport java.util.Calendar;public class CalendarBea

14、n String 口 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 日歷=Calendar.getInstance();日歷.set(year,

15、month-1,1);int 星期幾=日歷.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;elseday=28;for(int i=星期幾,n=1;i 星期幾 +day;i+) ai=String.valueORn);n+;retu

16、rn 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口=new JLabel42;JButton titleName口=new JButton7;String name=日,一,二,三,四,五,六;JButton nex

17、tMonth,previousMonth;CalendarBean calendar;JLabel showMessage=new JLabel(,JLabel.CENTER);int year=2011,month=2;public CalendarFrame()JPanel pCenter=new JPanel();/【代碼1】/將pCenter的布局設置為7行7列的GridLayout布局.for(int i=0;i7;i+)titleNamei=new JButton(namei);titleNamei.setBorder(new SoftBevelBorder(BevelBorder

18、.RAISED);/【代碼2】/pCenter中添加組件titleNameifor(int i=0;i42;i+)labelDayi=new JLabel(,JLabel.CENTER);labelDayi.setBorder(new SoftBevelBorder(BevelBorder.LOWERED);/【代碼3】/pCenter中添加組件labelDayicalendar=new CalendarBean();nextMonth=new JButton(下月);previousMonth=new JButton(上月);nextMonth.addActionListener(this)

19、;previousMonth.addActionListener(this);JPanel pNoth=new JPanel(),pSouth=new JPanel();pNoth.add(previousMonth);pNoth.add(nextMonth);pSouth.add(showMessage);/【代碼4 /將窗口 pCenter添加到中央?yún)^(qū)域/【代碼5】/將窗口 pNoth添加到北面區(qū)域/【代碼6】/將窗口 pSouth添加到南面區(qū)域setYearAndMonth(year,month);setDefaultCloseOperation(DISPOSE_ON_CLOSE);pu

20、blic 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;month=12;)

21、calendar.setMonth(month);String day口=calendar.getCalendar();for(int i=0;i42;i+)labelDayi.setText(dayi);)showMessage.setText(日歷：+calendar.getYear()+年+calendar.month+月);)CalendarMainClass.javapublic class CalendarMainClass public static void main(String args) CalendarFrame frame=new CalendarFrame();fr

22、ame.setBounds(100,100,360,300);frame.setVisible(true);frame.setYearAndMonth(2013,5);)實驗3華容道模板代碼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

23、 Person extends JButton implements FocusListener int number;Color c=new Color(255,245,170);Font font=new Font(宋體,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) setBack

24、ground(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口=new Person10;JButton left,right,above

25、,below;JButton restart=new JButton(重新開始);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,關羽

26、,張,劉,周，黃,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)

27、 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

28、 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();)實驗4字體對話框模板代碼FontFamilyNa

29、mes.javaimport java.awt.GraphicsEnvironment;public class FontFamilyNames String allFontName口；public String getFontName() GraphicsEnvironment ge=GraphicsEnvironment.getLocalGraphicsEnvironment();allFontName=ge.getAvailableFontFamilyNames();return allFontName;)FontDialog.javaimport java.awt.event.*;im

30、port 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;FontDial

31、og(Frame f)super(f);setTitle(字體);font=new Font(宋體,Font.PLAIN,12);fontFamilyNames=new FontFamilyNames();/代碼1 當前對話框調(diào)用setModal(boolean b)設置為有模式y(tǒng)es=new JButton(Yes);cancel=new JButton(cancel);yes.addActionListener(this);cancel.addActionListener(this);label=new JLabel(hello,奧運,JLabel.CENTER);fontSizeList

32、=new JComboBox();fontNameList=new JComboBox();String name口=fontFamilyNames.getFontName();fontNameList.addItem(字體)；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)/【代碼2】彈出消息對話框inputComplete=false;dou

33、ble sqrtRoot=Math.sqrt(result);System.out.println(result+平方根：+sqrtRoot);實驗6簡易計算器模板代碼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 fon

34、t = new Font(宋體, 1,16);public UserFrm(String title) throws HeadlessException super(title);/【代碼1】/設置該Frame位置與大小，具體值為(100,100, 250, 200) setVisible(true);Menu menu = new Menu(文 件)；menu.add(item);item.setFont(font);Panel panelNorth = new Panel();/【代碼2】/把panelNorth加入窗體的北區(qū)add(new Caculator(), BorderLayou

35、t.CENTER);item.addActionListener(this);jmb.add(menu);jmb.setFont(font);setMenuBar(jmb);/【代碼3】用匿名類的方式設計完成窗體關閉的監(jiān)聽和實現(xiàn)關閉的方法 validate();public void actionPerformed(ActionEvent e) Object o = e.getSource();if (o = item)System.exit(1);public static void main(String args) new UserFrm(用戶界面);class Caculator ex

36、tends 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, B

37、orderLayout.NORTH);Panel panel = new Panel();/【代碼4】/把panel設置為GridLayout布局Button btn = null;【代碼5】/創(chuàng)建btn并把標題設為1;把btn加入panel中;設置該按鈕的字體格式為UserFrm.font;設置輸入確認監(jiān)聽；設置鍵盤輸入監(jiān)聽【代碼6】/創(chuàng)建btn并把標題設為2;把btn加入panel中;設置該按鈕的字體格式為UserFrm.font;設置輸入確認監(jiān)聽；設置鍵盤輸入監(jiān)聽【代碼7】/創(chuàng)建btn并把標題設為3;把btn加入panel中;設置該按鈕的字體格式為UserFrm.font;設置輸入確認監(jiān)

38、聽；設置鍵盤輸入監(jiān)聽【代碼8】/創(chuàng)建btn并把標題設為+;把btn加入panel中;設置該按鈕的字體格式為UserFrm.font;設置輸入確認監(jiān)聽；設置鍵盤輸入監(jiān)聽【代碼9】/創(chuàng)建btn并把標題設為4;把btn加入panel中;設置該按鈕的字體格式為UserFrm.font;設置輸入確認監(jiān)聽；設置鍵盤輸入監(jiān)聽【代碼10/創(chuàng)建btn并把標題設為5;把btn加入panel中;設置該按鈕的字體格式為UserFrm.font;設置輸入確認監(jiān)聽；設置鍵盤輸入監(jiān)聽【代碼11/創(chuàng)建btn并把標題設為6;把btn加入panel中;設置該按鈕的字體格式為UserFrm.font;設置輸入確認監(jiān)聽；設置鍵盤輸入

39、監(jiān)聽【代碼12/創(chuàng)建btn并把標題設為-;把btn加入panel中;設置該按鈕的字體格式為UserFrm.font;設置輸入確認監(jiān)聽；設置鍵盤輸入監(jiān)聽【代碼13/創(chuàng)建btn并把標題設為7;把btn加入panel中;設置該按鈕的字體格式為UserFrm.font;設置輸入確認監(jiān)聽；設置鍵盤輸入監(jiān)聽【代碼14/創(chuàng)建btn并把標題設為8;把btn加入panel中;設置該按鈕的字體格式為UserFrm.font;設置輸入確認監(jiān)聽；設置鍵盤輸入監(jiān)聽/【代碼15/創(chuàng)建btn并把標題設為9;把btn加入panel中;設置該按鈕的字體格式為UserFrm.font;設置輸入確認監(jiān)聽；設置鍵盤輸入監(jiān)聽【代碼16

40、/創(chuàng)建btn并把標題設為*;把btn加入panel中;設置該按鈕的字體格式為UserFrm.font;設置輸入確認監(jiān)聽；設置鍵盤輸入監(jiān)聽【代碼17/創(chuàng)建btn并把標題設為0;把btn加入panel中;設置該按鈕的字體格式為UserFrm.font;設置輸入確認監(jiān)聽；設置鍵盤輸入監(jiān)聽【代碼18/創(chuàng)建btn并把標題設為.;把btn加入panel中;設置該按鈕的字體格式為UserFrm.font;設置輸入確認監(jiān)聽；設置鍵盤輸入監(jiān)聽【代碼19/創(chuàng)建btn并把標題設為/;把btn加入panel中;設置該按鈕的字體格式為UserFrm.font;設置輸入確認監(jiān)聽；設置鍵盤輸入監(jiān)聽btn = new But

41、ton(=);panel.add(btn);btn.setFont(UserFrm.font); btn.addActionListener(this);btn.addKeyListener(this);/【代碼20把panel加入Caculator的中部區(qū)域中)public void actionPerformed(ActionEvent e) if (e.getActionCommand() = +) 【代碼21把文本框里的數(shù)字轉(zhuǎn)成浮點型，賦給 xcode = 0;this.tf.setText();)if (e.getActionCommand() = -) 【代碼21把文本框里的數(shù)字轉(zhuǎn)

42、成浮點型，賦給 xcode = 1;this.tf.setText();)if (e.getActionCommand() = *) 【代碼21把文本框里的數(shù)字轉(zhuǎn)成浮點型，賦給 xcode = 2;this.tf.setText();)if (e.getActionCommand() = /) x = Float.parseFloat(tf.getText();code = 3;this.tf.setText();)if (e.getActionCommand() != + & e.getActionCommand() !=-& e.getActionCommand() != * & e.getActionCommand() != /& e.getActionCommand() != =) if (enable) if (first) tf.setText(e.getActionCommand();first = false; else tf.setText(tf.getText() + e.getActionCommand();else tf.setText(e.getActionCommand();enable = true;if (e.getActionComma