JAVA綜合圖形界面程序設計

1、鍵入文字實驗報告（2013 / 2014 學年 第 二 學期）課 程 名 稱Java語言程序設計實 驗 名 稱綜合圖形界面程序設計實 驗 時 間2014年5月5日指 導 單 位計算機學院 軟件教學中心指 導 教 師薛景學 生 姓 名 周媛班 級 學 號12001108學 院（系）計算機學院專 業(yè)計算機科學與技術（信息安全）3實驗名稱綜合圖形界面程序設計指導教師薛景實驗類型上機實驗學時2實驗時間2014-5-5一、實驗目的1.學習使用Java Swing設計GUI界面2.學習Java的事件監(jiān)聽機制的基本原理3.學習監(jiān)聽器處理Java中的事件二、實驗環(huán)境1.每位同學配備實驗計算機一臺2.安裝JDK

2、和Eclipse三、實驗內容1、編寫一個算數(shù)測試小軟件，用來訓練小學生的算數(shù)能力。程序有3個類組成，其中Teacher對象充當監(jiān)視器，負責給出算術題目，并判斷回答者的答案是否正確；ComputerFrame對象負責為算數(shù)題目提供視圖，比如用戶可以通過ComputerFrame對象提供的GUI界面看到題目，并通過該GUI界面給出題目的答案；MainClass是軟件的主類。（請在下方空白處填寫本程序的全部程序代碼及軟件界面截圖）public class Mainclass public static void main(String args) ComputerFrame frame; frame

3、=new ComputerFrame(); frame.setTitle("算術測試"); frame.setBounds(100,100,650,180); import java.awt.*;import java.awt.event.*;import javax.swing.*;public class ComputerFrame extends JFrame JMenuBar menubar; JMenu choiceGrade; JMenuItem grade1,grade2; JTextField textOne,textTwo,textResult; JBut

4、ton getProblem,giveAnswer; JLabel operatorLabel,message; Teacher teacherZhang; ComputerFrame() teacherZhang=new Teacher(); teacherZhang.setMaxInteger(20); setLayout(new FlowLayout(); menubar = new JMenuBar(); choiceGrade=new JMenu("選擇級別"); grade1=new JMenuItem("幼兒級別"); grade2=new

5、 JMenuItem("兒童級別"); 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

6、); choiceGrade.add(grade2); menubar.add(choiceGrade); setJMenuBar(menubar); textOne=new JTextField(5);/創(chuàng)建textOne，其可見字符長是5 textTwo=new JTextField(5); textResult=new JTextField(5); operatorLabel=new JLabel("+"); operatorLabel.setFont(new Font("Arial",Font.BOLD,20); message=new JLab

7、el("你還沒有回答呢"); getProblem=new JButton("獲取題目"); giveAnswer=new JButton("確認答案"); add(getProblem); add(textOne); add(operatorLabel); add(textTwo); add(new JLabel("="); add(textResult); add(giveAnswer); add(message); textResult.requestFocus(); textOne.setEditable(

8、false); textTwo.setEditable(false); getProblem.setActionCommand("getProblem"); textResult.setActionCommand("answer"); giveAnswer.setActionCommand("answer"); teacherZhang.setJTextField(textOne,textTwo,textResult); teacherZhang.setJLabel(operatorLabel,message); getProblem

9、.addActionListener(teacherZhang); giveAnswer.addActionListener(teacherZhang); textResult.addActionListener(teacherZhang); setVisible(true); validate(); setDefaultCloseOperation(DISPOSE_ON_CLOSE); import java.util.Random;import java.awt.event.*;import javax.swing.*;public class Teacher implements Act

10、ionListener int 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

11、 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="+" else operator="-" textOne.setText(""+numberOne); textTwo.setText

12、(""+numberTwo); operatorLabel.setText(operator); message.setText("請回答"); textResult.setText(null); else if(str.equals("answer") String answer=textResul.getText(); try int result=Integer.parseInt(answer); if(operator.equals("+") if(result=numberOne+numberTwo) m

13、essage.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("請輸入數(shù)字字符"); public

14、void setJTextField(JTextField.t) textOne=t0; textTwo=t1; textResult=t2; public void setJLabel(JLabel .label) operatorLabel=label0; message=label1; 2、編寫一個簡單的計算器軟件，實現(xiàn)簡單的四則運算。（請在下方空白處填寫本程序的全部程序代碼及軟件界面截圖）import java.awt.*; import java.awt.event.*; import javax.swing.*; public class Calculator extends JF

15、rame private Container container; private GridBagLayout layout; private GridBagConstraints constraints; private JTextField displayField;/ 計算結果顯示區(qū) private String lastCommand; private double result;/ 保存計算結果 private boolean start;/ 判斷是否為數(shù)字的開始 public Calculator() super("Calculator"); container

16、 = getContentPane(); layout = new GridBagLayout(); container.setLayout(layout); constraints = new GridBagConstraints(); start = true; result = 0; lastCommand = "=" displayField = new JTextField(20); displayField.setHorizontalAlignment(JTextField.RIGHT); constraints.gridx = 0; constraints.g

17、ridy = 0; constraints.gridwidth = 4; constraints.gridheight = 1; constraints.fill = GridBagConstraints.BOTH; constraints.weightx = 100; constraints.weighty = 100; layout.setConstraints(displayField, constraints); container.add(displayField); ActionListener insert = new InsertAction(); ActionListener

18、 command = new CommandAction(); addButton("7", 0, 2, 1, 1, insert); addButton("8", 1, 2, 1, 1, insert); addButton("9", 2, 2, 1, 1, insert); addButton("/", 3, 2, 1, 1, command); addButton("4", 0, 3, 1, 1, insert); addButton("5", 1, 3, 1, 1,

19、insert); addButton("6", 2, 3, 1, 1, insert); addButton("*", 3, 3, 1, 1, command); addButton("1", 0, 4, 1, 1, insert); addButton("2", 1, 4, 1, 1, insert); addButton("3", 2, 4, 1, 1, insert); addButton("-", 3, 4, 1, 1, command); addButton(&qu

20、ot;0", 0, 5, 1, 1, insert); addButton(".", 2, 5, 1, 1, insert); addButton("+", 3, 5, 1, 1, command); addButton("=", 0, 6, 4, 1, command); this.setResizable(false); setSize(180, 200); setVisible(true); private void addButton(String label, int row, int column, int wi

21、th, int height, ActionListener listener) JButton button = new JButton(label); constraints.gridx = row; constraints.gridy = column; constraints.gridwidth = with; constraints.gridheight = height; constraints.fill = GridBagConstraints.BOTH; button.addActionListener(listener); layout.setConstraints(butt

22、on, constraints); container.add(button); private class InsertAction implements ActionListener public void actionPerformed(ActionEvent event) String input = event.getActionCommand(); if (start) displayField.setText(""); start = false; if (input.equals("+/-") displayField.setText(d

23、isplayField.getText() + "-"); if (!input.equals("+/-") if (input.equals("Backspace") String str = displayField.getText(); if (str.length() > 0) displayField .setText(str.substring(0, str.length() - 1); else if (input.equals("CE") | input.equals("C"

24、;) displayField.setText("0"); start = true; else displayField.setText(displayField.getText() + input); private class CommandAction implements ActionListener public void actionPerformed(ActionEvent evt) String command = evt.getActionCommand(); if (start) lastCommand = command; else calculat

25、e(Double.parseDouble(displayField.getText(); lastCommand = command; start = true; public void calculate(double x) if (lastCommand.equals("+") result += x; else if (lastCommand.equals("-") result -= x; else if (lastCommand.equals("*") result *= x; else if (lastCommand.eq

26、uals("/") result /= x; else if (lastCommand.equals("=") result = x; displayField.setText("" + result); public static void main(String args) Calculator calculator = new Calculator(); calculator.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); 3、使用Java Swing中的各個組件，編寫一個自定義的軟件界面，例如：學生成績管理系統(tǒng)、圖書館管理系統(tǒng)、人事管理系統(tǒng)等等（請在下方空白處填寫本程序的全部程序代碼及軟件界面截圖）import javax.swing.*;public class Program public static void main(String args) WindowBoxLayou