GUI实验-计算器.doc

面向对象程序设计A（Java）实验报告实验名称：_GUI实验_ _实验类型：_实验性实验_指导教师：_刘涌_专业班级： _园艺1002_姓 名：_林少芳_学 号：_20103379_实验地点：_东六E-313 _ _ 日期： 2013 年 4 月 14 日实验三 GUI实验一、实验目的练习面向对象的图形用户界面设计、界面布局、事件设计方法。二、实验内容设计一个类似Windows计算器的Application应用程序。三、实验设计仿照Windows计算器，设计界面。将contentPane分成两个jPanel(borderlayout)，其中一个放置文本框，另一个继续划分为两部分，分别以FlowLayout和GridLayout的形式放置按钮。按要求设置按钮，文本框等的Text值，及相应属性的修改。设计方法：设两个变量value1，value2分别存储运算符左右两个操作数，设置标识符flag,初值为0，此时输入的数传给value1，当按下+-*时设置flag为1，此时输入的数字传给value2；即：int value1=0; int value2=0; int flag=0; String op=;void method(int v) if (flag=0) value1=value1*10+v; String s=String.valueOf(value1); Text.setText(s+.); else value2=value2*10+v; String s=String.valueOf(value2); Text.setText(s+.); 按下”=”时，根据value1，value2及op值进行计算并输出至文本框。即： void equral_mouseClicked(MouseEvent e) if(op=+) value1 = value1 + value2; else if(op=-) value1 = value1 - value2; else if(op=*) value1 = value1 * value2; else if(op=) value1=value1/value2; Text.setText(value1+.); 四、实验过程实验过程：1、采用Java Application方式建立应用程序框架；2、仿照Windows计算器，利用多种布局方式实现界面设计；3、完成简单的整数加、减、乘、除运算。设计过程出现的问题：如何设置按钮为下凹？在properties中将border值设为loweredBleve当op=”时提示错误；解决方法：将其改为”；如何将输入的数字转化为字符串型？解决方法：String s=String.valueOf(value1);五、实验结果界面设计：运行效果七、附录：关键代码（给出适当注释，可读性高）package text2;import java.awt.*;import java.awt.event.*;import javax.swing.*;public class Frame1 extends JFrame JPanel contentPane; JMenuBar jMenuBar1 = new JMenuBar(); JMenu jMenuFile = new JMenu(); JMenuItem jMenuFileExit = new JMenuItem(); JMenu jMenuHelp = new JMenu(); JMenuItem jMenuHelpAbout = new JMenuItem(); BorderLayout borderLayout1 = new BorderLayout(); JMenuItem jMenuItem1 = new JMenuItem(); JMenuItem jMenuItem2 = new JMenuItem(); JMenuItem jMenuItem3 = new JMenuItem(); JMenu jMenu1 = new JMenu(); JMenuItem jMenuItem4 = new JMenuItem(); JMenuItem jMenuItem5 = new JMenuItem(); JPanel jPanel1 = new JPanel(); JPanel jPanel2 = new JPanel(); JTextField Text = new JTextField(); BorderLayout borderLayout2 = new BorderLayout(); JPanel jPanel3 = new JPanel(); JPanel jPanel4 = new JPanel(); BorderLayout borderLayout5 = new BorderLayout(); FlowLayout flowLayout1 = new FlowLayout(); JButton C = new JButton(); JButton CE = new JButton(); JButton Backspace = new JButton(); JButton kong = new JButton(); JButton MC = new JButton(); JButton aorm = new JButton(); JButton subtract = new JButton(); JButton one = new JButton(); JButton equral = new JButton(); JButton three = new JButton(); JButton MR = new JButton(); JButton zore = new JButton(); JButton add = new JButton(); JButton MS = new JButton(); JButton percent = new JButton(); JButton M = new JButton(); JButton doc = new JButton(); JButton two = new JButton(); JButton multiply = new JButton(); JButton daoshu = new JButton(); GridLayout gridLayout1 = new GridLayout(); JButton six = new JButton(); JButton jButton7 = new JButton(); JButton five = new JButton(); JButton four = new JButton(); JButton sqrt = new JButton(); JButton divide = new JButton(); JButton nine = new JButton(); JButton eight = new JButton(); JButton seven = new JButton(); int value1=0; int value2=0; int flag=0; String op=; /Construct the frame public Frame1() enableEvents(AWTEvent.WINDOW_EVENT_MASK); try jbInit(); catch(Exception e) e.printStackTrace(); /Component initialization private void jbInit() throws Exception contentPane = (JPanel) this.getContentPane(); contentPane.setLayout(borderLayout1); this.setSize(new Dimension(400, 300); this.setTitle(Frame Title); jMenuFile.setText(编辑(E); jMenuFileExit.setText(复制); jMenuFileExit.addActionListener(new Frame1_jMenuFileExit_ActionAdapter(this); jMenuHelp.setText(查看); jMenuHelpAbout.setText(标准型); jMenuHelpAbout.addActionListener(new Frame1_jMenuHelpAbout_ActionAdapter(this); jMenuItem1.setText(粘贴); jMenuItem2.setText(科学型); jMenuItem3.setText(数学分组); jMenu1.setText(帮助); jMenuItem4.setText(帮助主题); jMenuItem5.setText(关于计算器); Text.setDebugGraphicsOptions(0); Text.setText(0.); Text.setHorizontalAlignment(SwingConstants.RIGHT); jPanel2.setLayout(borderLayout2); jPanel4.setLayout(flowLayout1); jPanel4.setDebugGraphicsOptions(0); jPanel3.setLayout(gridLayout1); jPanel1.setLayout(borderLayout5); C.setText(C); CE.setText(CE); Backspace.setText(Backspace); kong.setDebugGraphicsOptions(0); kong.setHorizontalAlignment(SwingConstants.CENTER); kong.setHorizontalTextPosition(SwingConstants.TRAILING); kong.setText(); MC.setText(MC); aorm.setActionCommand(+/-); aorm.setText(+/-); subtract.setText(-); subtract.addActionListener(new Frame1_subtract_actionAdapter(this); one.setText(1); one.addActionListener(new Frame1_one_actionAdapter(this); gridLayout1.setColumns(6); gridLayout1.setHgap(3); gridLayout1.setRows(4); gridLayout1.setVgap(3); jMenuFile.setText(File); jMenuFileExit.setText(Exit); jMenuFileExit.addActionListener(new Frame1_jMenuFileExit_ActionAdapter(this); jMenuHelp.setText(Help); jMenuHelpAbout.setText(About); jMenuHelpAbout.addActionListener(new Frame1_jMenuHelpAbout_ActionAdapter(this); seven.setText(7); seven.addMouseListener(new Frame1_seven_mouseAdapter(this); eight.setText(8); eight.addMouseListener(new Frame1_eight_mouseAdapter(this); nine.setText(9); nine.addMouseListener(new Frame1_nine_mouseAdapter(this); divide.setText(/); divide.addActionListener(new Frame1_divide_actionAdapter(this); sqrt.setText(sqrt); MR.setText(MR); four.setText(4); four.addActionListener(new Frame1_four_actionAdapter(this); five.setText(5); five.addActionListener(new Frame1_five_actionAdapter(this); six.setText(6); six.addActionListener(new Frame1_six_actionAdapter(this); two.setText(2); two.addActionListener(new Frame1_two_actionAdapter(this); three.setText(3); three.addActionListener(new Frame1_three_actionAdapter(this); zore.setText(0); zore.addActionListener(new Frame1_zore_actionAdapter(this); doc.setText(.); add.setText(+); add.addMouseListener(new Frame1_add_mouseAdapter(this); equral.setText(=); equral.addMouseListener(new Frame1_equral_mouseAdapter(this); daoshu.setText(1/X); daoshu.addActionListener(new Frame1_daoshu_actionAdapter(this); percent.setText(%); multiply.setText(*); multiply.addActionListener(new Frame1_multiply_actionAdapter(this); MS.setText(MS); M.setText(M+); jMenuFile.add(jMenuFileExit); jMenuHelp.add(jMenuHelpAbout); jMenuBar1.add(jMenuFile); jMenuBar1.add(jMenuHelp); this.setJMenuBar(jMenuBar1); jMenuFile.add(jMenuFileExit); jMenuFile.add(jMenuItem1); jMenuHelp.add(jMenuHelpAbout); jMenuHelp.add(jMenuItem2); jMenuHelp.add(jMenuItem3); jMenuBar1.add(jMenuFile); jMenuBar1.add(jMenuHelp); jMenuBar1.add(jMenu1); jMenu1.add(jMenuItem4); jMenu1.add(jMenuItem5); contentPane.add(jPanel1, BorderLayout.CENTER); contentPane.add(jPanel2, BorderLayout.NORTH); jPanel2.add(Text, BorderLayout.CENTER); jPanel1.add(jPanel4, BorderLayout.NORTH); jPanel1.add(jPanel3, BorderLayout.CENTER); jPanel4.add(kong, null); jPanel4.add(Backspace, null); jPanel4.add(CE, null); jPanel4.add(C, null); jPanel3.add(MC, null); jPanel3.add(seven, null); jPanel3.add(eight, null); jPanel3.add(nine, null); jPanel3.add(divide, null); jPanel3.add(sqrt, null); jPanel3.add(MR, null); jPanel3.add(four, null); jPanel3.add(five, null); jPanel3.add(six, null); jPanel3.add(multiply, null); jPanel3.add(percent, null); jPanel3.add(MS, null); jPanel3.add(one, null); jPanel3.add(two, null); jPanel3.add(three, null); jPanel3.add(subtract, null); jPanel3.add(daoshu, null); jPanel3.add(M, null); jPanel3.add(zore, null); jPanel3.add(aorm, null); jPanel3.add(doc, null); jPanel3.add(add, null); jPanel3.add(equral, null); /File | Exit action performed public void jMenuFileExit_actionPerformed(ActionEvent e) System.exit(0); /Help | About action performed public void jMenuHelpAbout_actionPerformed(ActionEvent e) Frame1_AboutBox dlg = new Frame1_AboutBox(this); Dimension dlgSize = dlg.getPreferredSize(); Dimension frmSize = getSize(); Point loc = getLocation(); dlg.setLocation(frmSize.width - dlgSize.width) / 2 + loc.x, (frmSize.height - dlgSize.height) / 2 + loc.y); dlg.setModal(true); dlg.pack(); dlg.show(); /Overridden so we can exit when window is closed protected void processWindowEvent(WindowEvent e) cessWindowEvent(e); if (e.getID() = WindowEvent.WINDOW_CLOSING) jMenuFileExit_actionPerformed(null); void method(int v) if (flag=0) value1=value1*10+v; String s=String.valueOf(value1); Text.setText(s+.); else value2=value2*10+v; String s=String.valueOf(value2); Text.setText(s+.); /*public int Getnumber() String s1=Text.getText() ; s1=s1.substring(0,s1.length()-1); int x=Integer.parseInt(s1) ; return x; */ void seven_mouseClicked(MouseEvent e) method(7); void eight_mouseClicked(MouseEvent e) method(8); void add_mouseClicked(MouseEvent e) flag = 1; op=+; void equral_mouseClicked(MouseEvent e) if(op=+) value1 = value1 + value2; else if(op=-) value1 = value1 - value2; else if(op=*) value1 = value1 * value2; else if(op=) value1=value1/value2; Text.setText(value1+.); void nine_mouseClicked(MouseEvent e) method(9); void four_actionPerformed(ActionEvent e) method(4); void five_actionPerformed(ActionEvent e) method(5); void six_actionPerformed(ActionEvent e) method(6); void one_actionPerformed(ActionEvent e) method(1); void two_actionPerformed(ActionEvent e) method(2); void three_actionPerformed(ActionEvent e) method(3); void zore_actionPerformed(ActionEvent e) method(0); void subtract_actionPerformed(ActionEvent e) flag=1; op=-; void multiply_actionPerformed(ActionEvent e) flag=1; op=*; void divide_actionPerformed(ActionEvent e) flag=1; op=; void daoshu_actionPerformed(ActionEvent e) class Frame1_jMenuFileExit_ActionAdapter implements ActionListener Frame1 adaptee; Frame1_jMenuFileExit_ActionAdapter(Frame1 adaptee) this.adaptee = adaptee; public void actionPerformed(ActionEvent e) adaptee.jMenuFileExit_actionPerformed(e); class Frame1_jMenuHelpAbout_ActionAdapter implements ActionListener Frame1 adaptee; Frame1_jMenuHelpAbout_ActionAdapter(Frame1 adaptee) this.adaptee = adaptee; public void actionPerformed(ActionEvent e) adaptee.jMenuHelpAbout_actionPerformed(e); class Frame1_seven_mouseAdapter extends java.awt.event.MouseAdapter Frame1 adaptee; Frame1_seven_mouseAdapter(Frame1 adaptee) this.adaptee = adaptee; public void mouseClicked(MouseEvent e) adaptee.seven_mouseClicked(e); class Frame1_eight_mouseAdapter extends java.awt.event.MouseAdapter Frame1 adaptee; Frame1_eight_mouseAdapter(Frame1 adaptee) this.adaptee = adaptee; public void mouseClicked(MouseEvent e) adaptee.eight_mouseClicked(e); class Frame1_add_mouseAdapter extends java.awt.event.MouseAdapter Frame1 adaptee; Frame1_add_mouseAdapter(Frame1 adaptee) this.adaptee = adaptee; public void mouseClicked(MouseEvent e) adaptee.add_mouseClicked(e); class Frame1_equral_mouseAdapter extends java.awt.event.MouseAdapter Frame1 adaptee; Frame1_equral_mouseAdapter(Frame1 adaptee) this.adaptee = adaptee; public void mouseClicked(MouseEvent e) adaptee.equral_mouseClicked(e); class Frame1_nine_mouseAdapter extends java.awt.event.MouseAdapter Frame1 adaptee; Frame1_nine_mouseAdapter(Frame1 adaptee) this.adaptee = adaptee; public void mouseClicked(MouseEvent e) adaptee.nine_mouseClicked(e); class Frame1_four_actionAdapter implements java.awt.event.ActionListener Frame1 adaptee; Frame1_four_actionAdapter(Frame1 adaptee) this.adaptee = adaptee; public void actionPerformed(ActionEvent e) adaptee.four_actionPerformed(e); class Frame1_five_actionAdapter implements java.awt.event.ActionListener Frame1 adaptee; Frame1_five_actionAdapter(Frame1 adaptee) this.adaptee = adaptee; public void actionPerformed(ActionEvent e) adaptee.five_actionPerformed(e); class Frame1_six_actionAdapter implements java.awt.event.ActionListener Frame1 adaptee; Frame1_six_actionAdapter(Frame1 adaptee) this.adaptee = adaptee; public void actionPerformed(ActionEvent e) adaptee.six_actionPerformed(e); class Frame1_one_actionAdapter implements java.awt.event.ActionListener Frame1 adaptee; Frame1_one_actionAdapter(Frame1 adaptee) this.adaptee = adaptee; public void actionPerformed(ActionEvent e) adaptee.one_actionPerformed(e); class Frame1_two_actionAdapter implements java.awt.event.ActionListener Frame1 adaptee; Frame1_two_actionAdapter(Frame1 adaptee) this.adaptee = adaptee; public void actionPerformed(ActionEvent e) adaptee.two_actionPerformed(e); class Frame1_three_actionAdapter implements java.awt.event.ActionL