实验十八 总复习
实验时间 2018-12-30
1、实验目的与要求
(1) 综合掌握java基本程序结构；
(2) 综合掌握java面向对象程序设计特点；
(3) 综合掌握java GUI 程序设计结构；
(4) 综合掌握java多线程编程模型；
(5) 综合编程练习。
2、实验内容和步骤
任务1：填写课程课后调查问卷，网址：https://www.wjx.cn/jq/33108969.aspx。
任务2：综合编程练习
练习1：设计一个用户信息采集程序，要求如下：
（1） 用户信息输入界面如下图所示:
（1）用户点击提交按钮时，用户输入信息显示控制台界面；
（2）用户点击重置按钮后，清空用户已输入信息；
（3）点击窗口关闭，程序退出。
1 package AA; 2 3 4 5 import java.awt.EventQueue; 6 7 import javax.swing.JFrame; 8 9 public class Main { 10 public static void main(String[] args) { 11 EventQueue.invokeLater(() -> { 12 DemoJFrame page = new DemoJFrame(); 13 }); 14 } 15 }
1 package AA; 2 3 import java.awt.Dimension; 4 import java.awt.Toolkit; 5 import java.awt.Window; 6 7 public class WinCenter { 8 public static void center(Window win){ 9 Toolkit tkit = Toolkit.getDefaultToolkit(); 10 Dimension sSize = tkit.getScreenSize(); 11 Dimension wSize = win.getSize(); 12 if(wSize.height > sSize.height){ 13 wSize.height = sSize.height; 14 } 15 if(wSize.width > sSize.width){ 16 wSize.width = sSize.width; 17 } 18 win.setLocation((sSize.width - wSize.width)/ 2, (sSize.height - wSize.height)/ 2); 19 } 20 }
1 package AA; 2 3 import java.awt.Dimension; 4 import java.awt.FlowLayout; 5 import java.awt.GridLayout; 6 7 import javax.swing.BorderFactory; 8 import javax.swing.ButtonGroup; 9 import javax.swing.JButton; 10 import javax.swing.JCheckBox; 11 import javax.swing.JComboBox; 12 import javax.swing.JFrame; 13 import javax.swing.JLabel; 14 import javax.swing.JPanel; 15 import javax.swing.JRadioButton; 16 import javax.swing.JTextField; 17 18 public class DemoJFrame extends JFrame { 19 private JPanel jPanel1; 20 private JPanel jPanel2; 21 private JPanel jPanel3; 22 private JPanel jPanel4; 23 private JTextField fieldname; 24 private JComboBox comboBox; 25 private JTextField fieldadress; 26 private ButtonGroup bg; 27 private JRadioButton Male; 28 private JRadioButton Female; 29 private JCheckBox read; 30 private JCheckBox sing; 31 private JCheckBox dance; 32 33 public DemoJFrame() { 34 // 设置窗口大小 35 this.setSize(800, 400); 36 // 设置可见性 37 this.setVisible(true); 38 // 设置标题 39 this.setTitle("编程练习一"); 40 // 设置关闭操作 41 this.setDefaultCloseOperation(EXIT_ON_CLOSE); 42 // 设置窗口居中 43 WinCenter.center(this); 44 // 创建四个面板对象 45 jPanel1 = new JPanel(); 46 setJPanel1(jPanel1); 47 jPanel2 = new JPanel(); 48 setJPanel2(jPanel2); 49 jPanel3 = new JPanel(); 50 setJPanel3(jPanel3); 51 jPanel4 = new JPanel(); 52 setJPanel4(jPanel4); 53 // 设置容器的为流布局 54 FlowLayout flowLayout = new FlowLayout(); 55 this.setLayout(flowLayout); 56 // 将四个面板添加到容器中 57 this.add(jPanel1); 58 this.add(jPanel2); 59 this.add(jPanel3); 60 this.add(jPanel4); 61 62 } 63 64 /* 65 * 设置面一 66 */ 67 private void setJPanel1(JPanel jPanel) { 68 // TODO 自动生成的方法存根 69 jPanel.setPreferredSize(new Dimension(700, 45)); 70 // 给面板的布局设置为网格布局 一行4列 71 jPanel.setLayout(new GridLayout(1, 4)); 72 73 JLabel name = new JLabel("name:"); 74 name.setSize(100, 50); 75 fieldname = new JTextField(""); 76 fieldname.setSize(80, 20); 77 78 JLabel study = new JLabel("qualification:"); 79 comboBox = new JComboBox(); 80 comboBox.addItem("初中"); 81 comboBox.addItem("高中"); 82 comboBox.addItem("本科"); 83 jPanel.add(name); 84 jPanel.add(fieldname); 85 jPanel.add(study); 86 jPanel.add(comboBox); 87 88 } 89 90 /* 91 * 设置面板二 92 */ 93 private void setJPanel2(JPanel jPanel) { 94 // TODO 自动生成的方法存根 95 jPanel.setPreferredSize(new Dimension(700, 50)); 96 // 给面板的布局设置为网格布局 一行4列 97 jPanel.setLayout(new GridLayout(1, 4)); 98 99 JLabel name = new JLabel("address:"); 100 fieldadress = new JTextField(); 101 fieldadress.setPreferredSize(new Dimension(150, 50)); 102 103 JLabel study = new JLabel("hobby:"); 104 JPanel selectBox = new JPanel(); 105 selectBox.setBorder(BorderFactory.createTitledBorder("")); 106 selectBox.setLayout(new GridLayout(3, 1)); 107 read = new JCheckBox("reading"); 108 sing = new JCheckBox("singing"); 109 dance = new JCheckBox("danceing"); 110 selectBox.add(read); 111 selectBox.add(sing); 112 selectBox.add(dance); 113 jPanel.add(name); 114 jPanel.add(fieldadress); 115 jPanel.add(study); 116 jPanel.add(selectBox); 117 } 118 119 /* 120 * 设置面板三 121 */ 122 private void setJPanel3(JPanel jPanel) { 123 // TODO 自动生成的方法存根 124 jPanel.setPreferredSize(new Dimension(700, 150)); 125 FlowLayout flowLayout = new FlowLayout(FlowLayout.LEFT); 126 jPanel.setLayout(flowLayout); 127 JLabel sex = new JLabel("性别:"); 128 JPanel selectBox = new JPanel(); 129 selectBox.setBorder(BorderFactory.createTitledBorder("")); 130 selectBox.setLayout(new GridLayout(2, 1)); 131 bg = new ButtonGroup(); 132 Male = new JRadioButton("male"); 133 Female = new JRadioButton("female"); 134 bg.add(Male ); 135 bg.add(Female); 136 selectBox.add(Male); 137 selectBox.add(Female); 138 jPanel.add(sex); 139 jPanel.add(selectBox); 140 141 } 142 143 /* 144 * 设置面板四 145 */ 146 private void setJPanel4(JPanel jPanel) { 147 // TODO 自动生成的方法存根 148 jPanel.setPreferredSize(new Dimension(700, 150)); 149 FlowLayout flowLayout = new FlowLayout(FlowLayout.CENTER, 50, 10); 150 jPanel.setLayout(flowLayout); 151 jPanel.setLayout(flowLayout); 152 JButton sublite = new JButton("提交"); 153 JButton reset = new JButton("重置"); 154 sublite.addActionListener((e) -> valiData()); 155 reset.addActionListener((e) -> Reset()); 156 jPanel.add(sublite); 157 jPanel.add(reset); 158 } 159 160 /* 161 * 提交数据 162 */ 163 private void valiData() { 164 // TODO 自动生成的方法存根 165 // 拿到数据 166 String name = fieldname.getText().toString().trim(); 167 String xueli = comboBox.getSelectedItem().toString().trim(); 168 String address = fieldadress.getText().toString().trim(); 169 System.out.println(name); 170 System.out.println(xueli); 171 String hobbystring=""; 172 if (read.isSelected()) { 173 hobbystring+="reading "; 174 } 175 if (sing.isSelected()) { 176 hobbystring+="singing "; 177 } 178 if (dance.isSelected()) { 179 hobbystring+="dancing "; 180 } 181 System.out.println(address); 182 if (Male.isSelected()) { 183 System.out.println("male"); 184 } 185 if (Female.isSelected()) { 186 System.out.println("female"); 187 } 188 System.out.println(hobbystring); 189 } 190 191 /* 192 * 重置 193 */ 194 private void Reset() { 195 // TODO 自动生成的方法存根 196 fieldadress.setText(null); 197 fieldname.setText(null); 198 comboBox.setSelectedIndex(0); 199 read.setSelected(false); 200 sing.setSelected(false); 201 dance.setSelected(false); 202 bg.clearSelection(); 203 } 204 }
练习2：采用GUI界面设计以下程序：
编制一个程序，将身份证号.txt 中的信息读入到内存中；
按姓名字典序输出人员信息；
查询最大年龄的人员信息；
查询最小年龄人员信息；
输入你的年龄，查询身份证号.txt中年龄与你最近人的姓名、身份证号、年龄、性别和出生地；
查询人员中是否有你的同乡。
输入身份证信息，查询所提供身份证号的人员信息，要求输入一个身份证数字时，查询界面就显示满足查询条件的查询结果，且随着输入的数字的增多，查询匹配的范围逐渐缩小。
1 package AA; 2 3 import java.awt.*; 4 import javax.swing.*; 5 6 public class IdTest { 7 public static void main(String[] args) { 8 EventQueue.invokeLater(() -> { 9 JFrame frame = new Main(); 10 frame.setTitle("身份证信息查询"); 11 frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); 12 frame.setVisible(true); 13 }); 14 } 15 }
1 package AA; 2 3 import java.io.BufferedReader; 4 import java.io.File; 5 import java.io.FileInputStream; 6 import java.io.InputStreamReader; 7 import java.io.FileNotFoundException; 8 import java.io.IOException; 9 import java.util.ArrayList; 10 import java.util.Arrays; 11 import java.util.Collections; 12 import java.util.Scanner; 13 import java.awt.*; 14 import javax.swing.*; 15 import java.awt.event.*; 16 17 public class Main extends JFrame { 18 private static ArrayList<Student> studentlist; 19 private static ArrayList<Student> list; 20 private JPanel panel; 21 private JPanel buttonPanel; 22 private static final int DEFAULT_WITH = 900; 23 private static final int DEFAULT_HEIGHT = 600; 24 25 public Main() { 26 studentlist = new ArrayList<>(); 27 Scanner scanner = new Scanner(System.in); 28 File file = new File("G:\\身份证号.txt"); 29 try { 30 FileInputStream fis = new FileInputStream(file); 31 BufferedReader in = new BufferedReader(new InputStreamReader(fis)); 32 String temp = null; 33 while ((temp = in.readLine()) != null) { 34 35 Scanner linescanner = new Scanner(temp); 36 37 linescanner.useDelimiter(" "); 38 String name = linescanner.next(); 39 String number = linescanner.next(); 40 String sex = linescanner.next(); 41 String age = linescanner.next(); 42 String province = linescanner.nextLine(); 43 Student student = new Student(); 44 student.setName(name); 45 student.setnumber(number); 46 student.setsex(sex); 47 int a = Integer.parseInt(age); 48 student.setage(a); 49 student.setprovince(province); 50 studentlist.add(student); 51 52 } 53 } catch (FileNotFoundException e) { 54 System.out.println("文件找不到"); 55 e.printStackTrace(); 56 } catch (IOException e) { 57 System.out.println("文件读取错误"); 58 e.printStackTrace(); 59 } 60 panel = new JPanel(); 61 panel.setLayout(new BorderLayout()); 62 JTextArea A = new JTextArea(); 63 panel.add(A); 64 add(panel, BorderLayout.NORTH); 65 buttonPanel = new JPanel(); 66 67 buttonPanel.setLayout(new GridLayout(6, 2)); 68 JButton jButton = new JButton("字典排序"); 69 JButton jButton1 = new JButton("年龄最大和年龄最小"); 70 JLabel lab1 = new JLabel("寻找你的老乡"); 71 JTextField a1 = new JTextField(); 72 JLabel lab2 = new JLabel("寻找找同龄人："); 73 JTextField a2 = new JTextField(); 74 JLabel lab3 = new JLabel("输入身份证号码查询信息："); 75 JTextField a3 = new JTextField(); 76 JButton jButton2 = new JButton("退出"); 77 78 jButton.addActionListener(new ActionListener() { 79 public void actionPerformed(ActionEvent e) { 80 Collections.sort(studentlist); 81 A.setText(studentlist.toString()); 82 } 83 }); 84 jButton1.addActionListener(new ActionListener() { 85 public void actionPerformed(ActionEvent e) { 86 int max = 0, min = 100; 87 int j, k1 = 0, k2 = 0; 88 for (int i = 1; i < studentlist.size(); i++) { 89 j = studentlist.get(i).getage(); 90 if (j > max) { 91 max = j; 92 k1 = i; 93 } 94 if (j < min) { 95 min = j; 96 k2 = i; 97 } 98 99 } 100 A.setText("年龄最大：" + studentlist.get(k1) + "年龄最小：" + studentlist.get(k2)); 101 } 102 }); 103 jButton2.addActionListener(new ActionListener() { 104 public void actionPerformed(ActionEvent e) { 105 dispose(); 106 System.exit(0); 107 } 108 }); 109 a1.addActionListener(new ActionListener() { 110 public void actionPerformed(ActionEvent e) { 111 String find = a1.getText(); 112 String text=""; 113 String place = find.substring(0, 3); 114 for (int i = 0; i < studentlist.size(); i++) { 115 if (studentlist.get(i).getprovince().substring(1, 4).equals(place)) { 116 text+="\n"+studentlist.get(i); 117 A.setText("老乡：" + text); 118 } 119 } 120 } 121 }); 122 a2.addActionListener(new ActionListener() { 123 public void actionPerformed(ActionEvent e) { 124 String yourage = a2.getText(); 125 int a = Integer.parseInt(yourage); 126 int near = agenear(a); 127 int value = a - studentlist.get(near).getage(); 128 A.setText("年龄相近：" + studentlist.get(near)); 129 } 130 }); 131 a3.addActionListener(new ActionListener() { 132 public void actionPerformed(ActionEvent e) { 133 list = new ArrayList<>(); 134 Collections.sort(studentlist); 135 String key = a3.getText(); 136 for (int i = 1; i < studentlist.size(); i++) { 137 if (studentlist.get(i).getnumber().contains(key)) { 138 list.add(studentlist.get(i)); 139 A.setText("结果：\n" + list); 140 141 } 142 } 143 } 144 }); 145 buttonPanel.add(jButton); 146 buttonPanel.add(jButton1); 147 buttonPanel.add(lab1); 148 buttonPanel.add(a1); 149 buttonPanel.add(lab2); 150 buttonPanel.add(a2); 151 buttonPanel.add(lab3); 152 buttonPanel.add(a3); 153 buttonPanel.add(jButton2); 154 add(buttonPanel, BorderLayout.SOUTH); 155 setSize(DEFAULT_WITH, DEFAULT_HEIGHT); 156 } 157 158 public static int agenear(int age) { 159 int min = 53, value = 0, k = 0; 160 for (int i = 0; i < studentlist.size(); i++) { 161 value = studentlist.get(i).getage() - age; 162 if (value < 0) 163 value = -value; 164 if (value < min) { 165 min = value; 166 k = i; 167 } 168 } 169 return k; 170 } 171 172 }
1 package AA; 2 3 public class Student implements Comparable<Student> { 4 5 private String name; 6 private String number ; 7 private String sex ; 8 private int age; 9 private String province; 10 11 public String getName() { 12 return name; 13 } 14 public void setName(String name) { 15 this.name = name; 16 } 17 public String getnumber() { 18 return number; 19 } 20 public void setnumber(String number) { 21 this.number = number; 22 } 23 public String getsex() { 24 return sex ; 25 } 26 public void setsex(String sex ) { 27 this.sex =sex ; 28 } 29 public int getage() { 30 31 return age; 32 } 33 public void setage(int age) { 34 35 this.age= age; 36 } 37 38 public String getprovince() { 39 return province; 40 } 41 public void setprovince(String province) { 42 this.province=province ; 43 } 44 45 public int compareTo(Student o) { 46 return this.name.compareTo(o.getName()); 47 } 48 49 public String toString() { 50 return name+"\t"+sex+"\t"+age+"\t"+number+"\t"+province+"\n"; 51 } 52 }
练习3：采用GUI界面设计以下程序
编写一个计算器类，可以完成加、减、乘、除的操作
利用计算机类，设计一个小学生100以内数的四则运算练习程序，由计算机随机产生10道加减乘除练习题，学生输入答案，由程序检查答案是否正确，每道题正确计10分，错误不计分，10道题测试结束后给出测试总分；
将程序中测试练习题及学生答题结果输出到文件，文件名为test.txt。
1 package C; 2 3 import java.awt.Dimension; 4 import java.awt.EventQueue; 5 import java.awt.Toolkit; 6 7 import javax.swing.JFrame; 8 9 public class Main { 10 11 public static void main (String args[]) 12 { 13 Toolkit t=Toolkit.getDefaultToolkit(); 14 Dimension s=t.getScreenSize(); 15 EventQueue.invokeLater(() -> { 16 JFrame frame = new calculator (); 17 frame.setBounds(0, 0,(int)s.getWidth()/2,(int)s.getHeight()/2); 18 frame.setTitle("计算练习"); 19 frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); 20 frame.setVisible(true); 21 }); 22 } 23 24 }
1 package C; 2 3 import java.awt.Font; 4 import java.awt.event.ActionEvent; 5 import java.awt.event.ActionListener; 6 import java.io.FileNotFoundException; 7 import java.io.PrintWriter; 8 9 import javax.swing.JButton; 10 import javax.swing.JFrame; 11 import javax.swing.JLabel; 12 import javax.swing.JPanel; 13 import javax.swing.JTextArea; 14 15 public class calculator extends JFrame { 16 17 private String[] c=new String[10]; 18 private String[] c1=new String[10]; 19 private int[] list=new int[10]; 20 int i=0,i1=0,sum = 0; 21 private PrintWriter out = null; 22 private JTextArea text,text1; 23 private int counter; 24 25 public calculator() { 26 JPanel Panel = new JPanel();Panel.setLayout(null); 27 JLabel JLabel1=new JLabel("");JLabel1.setBounds(500, 800, 400, 30);JLabel1.setFont(new Font("Courier",Font.PLAIN,35)); 28 JButton Button = new JButton("生成题目");Button.setBounds(50,150,150,50);Button.setFont(new Font("Courier",Font.PLAIN,20)); Button.addActionListener(new Action()); 29 JButton Button2 = new JButton("确定答案");Button2.setBounds(300,150,150,50);Button2.setFont(new Font("Courier",Font.PLAIN,20));Button2.addActionListener(new Action1()); 30 JButton Button3 = new JButton("读出文件");Button3.setBounds(500,150,150,50);Button3.setFont(new Font("Courier",Font.PLAIN,20));Button3.addActionListener(new Action2()); 31 text=new JTextArea(30,80);text.setBounds(30, 50, 200, 50);text.setFont(new Font("Courier",Font.PLAIN,35)); 32 text1=new JTextArea(30,80);text1.setBounds(270, 50, 200, 50);text1.setFont(new Font("Courier",Font.PLAIN,35)); 33 34 Panel.add(text); 35 Panel.add(text1); 36 37 Panel.add(Button); 38 Panel.add(Button2); 39 Panel.add(Button3); 40 Panel.add(JLabel1); 41 add(Panel); 42 43 44 45 46 47 48 49 } 50 51 private class Action implements ActionListener 52 { 53 public void actionPerformed(ActionEvent event) 54 { 55 text1.setText("0"); 56 if(i<10) { 57 58 int a = 1+(int)(Math.random() * 99); 59 int b = 1+(int)(Math.random() * 99); 60 int m= (int) Math.round(Math.random() * 3); 61 switch(m) 62 { 63 case 0: 64 while(a<b){ b = (int) Math.round(Math.random() * 100);a = (int) Math.round(Math.random() * 100); } 65 c[i]=(i+":"+a+"/"+b+"="); 66 list[i]=Math.floorDiv(a, b); 67 text.setText(i+":"+a+"/"+b+"="); 68 i++; 69 70 break; 71 case 1: 72 c[i]=(i+":"+a+"*"+b+"="); 73 list[i]=Math.multiplyExact(a, b); 74 text.setText(i+":"+a+"*"+b+"="); 75 i++; 76 break; 77 case 2: 78 c[i]=(i+":"+a+"+"+b+"="); 79 list[i]=Math.addExact(a, b); 80 text.setText(i+":"+a+"+"+b+"="); 81 i++; 82 break ; 83 case 3: 84 while(a<=b){ b = (int) Math.round(Math.random() * 100);a = (int) Math.round(Math.random() * 100); } 85 c[i]=(i+":"+a+"-"+b+"="); 86 text.setText(i+":"+a+"-"+b+"="); 87 list[i]=Math.subtractExact(a, b);i++; 88 89 break ; 90 } 91 } 92 } 93 } 94 private class Action1 implements ActionListener 95 { 96 public void actionPerformed(ActionEvent event) 97 { 98 if(i<10) { 99 text.setText(null); 100 String daan=text1.getText().toString().trim(); 101 int a = Integer.parseInt(daan); 102 if(text1.getText()!="") { 103 if(list[i1]==a) sum+=10; 104 } 105 106 c1[i1]=daan; 107 108 i1++; 109 110 } 111 } 112 113 } 114 115 116 private class Action2 implements ActionListener 117 { 118 public void actionPerformed(ActionEvent event) 119 { 120 121 try { 122 out = new PrintWriter("text.txt"); 123 } catch (FileNotFoundException e) { 124 // TODO Auto-generated catch block 125 e.printStackTrace(); 126 } 127 for(int counter=0;counter<10;counter++) 128 { 129 out.println(c[counter]+c1[counter]); 130 } 131 out.println("成绩"+sum); 132 out.close(); 133 134 } 135 136 } 137 }
任务3：本学期课程已结束，请汇总《面向对象程序设计课程学习进度条》的数据，统计个人专业能力提升的数据。并从学习内容、学习方法、学习心得几个方面进行课程学习总结，也希望你对课程的不足提出建议和意见。
学习内容：
Java语言特点与开发环境配置
Java基本程序结构
Java面向对象程序结构
类、类间关系、类图
Java JDK预定义类/接口及其API（String-第3章、 Arrays-第3章、Files-第3章62页、LocalDate-第4章、 Object-第5章、对象包装器-第5章、Comparator-第6章、 异常类-第7章、ArrayList-第5+8章、第9章、第10-12章、 第14章）
— Java异常处理编程模型
— Java GUI编程模型
Java并发程序设计
Java应用程序部署
学习方法：
理论与实践相结合，理论学习作基础，实验实践学习为重点。
主动结合教材，网络平台资源等自主学习，再结合老师和助教讲解，演示。
学习心得：
本学期的学习，我掌握了基础的java知识，解决一些很基本的实际问题，但仅仅知识基础部分，要将其用于复杂一些的项目，还需要继续进行java的学习，我有计划在本次寒假继续学习一些java的相关课程。
建议和意见：
我很喜欢这样的教学方式，觉得这样的机制是挺完美的，但本学期的效果远没有预想的好，主要原因在我们学生的自主性不足。所以是得有些环节没达到该有的意义。