达拉草201771010105《面向对象程序设计（java）》第十八周学习总结

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。

package masn;import java.awt.EventQueue;import javax.swing.JFrame;public class Main {    public static void main(String[] args) {        EventQueue.invokeLater(() -> {            DemoJFrame page = new DemoJFrame();        });    }}

package masn;import java.awt.Dimension;import java.awt.Toolkit;import java.awt.Window;public class WinCenter {     public static void center(Window win){                 Toolkit tkit = Toolkit.getDefaultToolkit();                 Dimension sSize = tkit.getScreenSize();                 Dimension wSize = win.getSize();                 if(wSize.height > sSize.height){                    wSize.height = sSize.height;                 }                 if(wSize.width > sSize.width){                    wSize.width = sSize.width;                 }                 win.setLocation((sSize.width - wSize.width)/ 2, (sSize.height - wSize.height)/ 2);            }}

package masn;import java.awt.Dimension;import java.awt.FlowLayout;import java.awt.GridLayout;import javax.swing.BorderFactory;import javax.swing.ButtonGroup;import javax.swing.JButton;import javax.swing.JCheckBox;import javax.swing.JComboBox;import javax.swing.JFrame;import javax.swing.JLabel;import javax.swing.JPanel;import javax.swing.JRadioButton;import javax.swing.JTextField;public class DemoJFrame extends JFrame {    private JPanel jPanel1;    private JPanel jPanel2;    private JPanel jPanel3;    private JPanel jPanel4;    private JTextField fieldname;    private JComboBox comboBox;    private JTextField fieldadress;    private ButtonGroup bg;    private JRadioButton Male;    private JRadioButton Female;    private JCheckBox read;    private JCheckBox sing;    private JCheckBox dance;    public DemoJFrame() {                this.setSize(800, 400);        this.setVisible(true);        this.setTitle("Students Detail");        this.setDefaultCloseOperation(EXIT_ON_CLOSE);        WinCenter.center(this);        jPanel1 = new JPanel();        setJPanel1(jPanel1);                        jPanel2 = new JPanel();        setJPanel2(jPanel2);        jPanel3 = new JPanel();        setJPanel3(jPanel3);        jPanel4 = new JPanel();        setJPanel4(jPanel4);        FlowLayout flowLayout = new FlowLayout();        this.setLayout(flowLayout);        this.add(jPanel1);        this.add(jPanel2);        this.add(jPanel3);        this.add(jPanel4);    }    /*设置面板一 */    private void setJPanel1(JPanel jPanel) {                jPanel.setPreferredSize(new Dimension(700, 45));        jPanel.setLayout(new GridLayout(1, 4));                JLabel name = new JLabel("name:");        name.setSize(80, 30);        fieldname = new JTextField("");        fieldname.setSize(80, 20);                JLabel study = new JLabel("qualification:");        comboBox = new JComboBox();        comboBox.addItem("初中");        comboBox.addItem("高中");        comboBox.addItem("本科");        jPanel.add(name);        jPanel.add(fieldname);        jPanel.add(study);        jPanel.add(comboBox);    }    /*设置面板二*/    private void setJPanel2(JPanel jPanel) {                jPanel.setPreferredSize(new Dimension(700, 50));        jPanel.setLayout(new GridLayout(1, 4));                JLabel name = new JLabel("address:");        fieldadress = new JTextField();        fieldadress.setPreferredSize(new Dimension(100, 50));                JLabel study = new JLabel("hobby:");        JPanel selectBox = new JPanel();        selectBox.setBorder(BorderFactory.createTitledBorder(""));        selectBox.setLayout(new GridLayout(3, 1));        read = new JCheckBox("reading");        sing = new JCheckBox("singing");        dance = new JCheckBox("danceing");        selectBox.add(read);        selectBox.add(sing);        selectBox.add(dance);        jPanel.add(name);        jPanel.add(fieldadress);        jPanel.add(study);        jPanel.add(selectBox);    }    /* 设置面板三 */    private void setJPanel3(JPanel jPanel) {                jPanel.setPreferredSize(new Dimension(700, 150));        FlowLayout flowLayout = new FlowLayout(FlowLayout.LEFT);        jPanel.setLayout(flowLayout);        JLabel sex = new JLabel("性别:");        JPanel selectBox = new JPanel();        selectBox.setBorder(BorderFactory.createTitledBorder(""));        selectBox.setLayout(new GridLayout(2, 1));        bg = new ButtonGroup();        Male = new JRadioButton("male");        Female = new JRadioButton("female");        bg.add(Male );        bg.add(Female);        selectBox.add(Male);        selectBox.add(Female);        jPanel.add(sex);        jPanel.add(selectBox);    }    /*设置面板四*/    private void setJPanel4(JPanel jPanel) {                jPanel.setPreferredSize(new Dimension(700, 150));        FlowLayout flowLayout = new FlowLayout(FlowLayout.CENTER, 50, 10);        jPanel.setLayout(flowLayout);        jPanel.setLayout(flowLayout);        JButton sublite = new JButton("提交");        JButton reset = new JButton("重置");        sublite.addActionListener((e) -> valiData());        reset.addActionListener((e) -> Reset());        jPanel.add(sublite);        jPanel.add(reset);    }    /*提交数据*/    private void valiData() {             String name = fieldname.getText().toString().trim();        String xueli = comboBox.getSelectedItem().toString().trim();        String address = fieldadress.getText().toString().trim();        System.out.println(name);        System.out.println(xueli);        String hobbystring="";        if (read.isSelected()) {            hobbystring+="reading   ";        }        if (sing.isSelected()) {            hobbystring+="singing   ";        }        if (dance.isSelected()) {            hobbystring+="dancing  ";        }        System.out.println(address);        if (Male.isSelected()) {            System.out.println("male");        }        if (Female.isSelected()) {            System.out.println("female");        }        System.out.println(hobbystring);    }    /*重置*/    private void Reset() {                fieldadress.setText(null);        fieldname.setText(null);        comboBox.setSelectedIndex(0);        read.setSelected(false);        sing.setSelected(false);        dance.setSelected(false);        bg.clearSelection();    }}

 运行结果如下：

练习2：采用GUI界面设计以下程序：

l  编制一个程序，将身份证号.txt 中的信息读入到内存中；

l  按姓名字典序输出人员信息；

l  查询最大年龄的人员信息；

l  查询最小年龄人员信息；

l  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；

l  查询人员中是否有你的同乡。

l  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。

package 身份证;import java.io.BufferedReader;import java.io.FileNotFoundException;import java.io.FileReader;import java.io.IOException;import java.util.ArrayList;//import java.util.Arrays;import java.util.Collections;import java.util.Scanner;import java.util.TimerTask;//import java.awt.*;import javax.swing.*;import java.awt.event.*;public class Main extends JFrame {    private static ArrayList studentlist;    private static ArrayList
     
       list;    private JPanel buttonPanel; //   private JPanel panel;        Scanner scanner = new Scanner(System.in);       public Main() {         studentlist = new ArrayList<>();                          //    Timer timer=new Timer();         JTextArea jt = new JTextArea();         jt.setBounds(520, 100, 800, 600);         buttonPanel = new JPanel();                JButton jButton = new JButton("1.字典排序：");         JButton jButton1 = new JButton("2.年龄最大和年龄最小：");         JLabel lab = new JLabel("3.猜猜你的老乡：");         JTextField jt1 = new JTextField();         JLabel lab1 = new JLabel("4.找找同龄人（年龄相近）：");         JTextField jt2 = new JTextField();         JLabel lab2 = new JLabel("5.输入你的身份证号码：");         JTextField jt3 = new JTextField();         JButton jButton2 = new JButton("6.退出");         buttonPanel. setLayout(null);         jButton.setBounds(50, 160, 100, 30);         jButton1.setBounds(50, 220, 160, 30);         lab2.setBounds(50, 400, 100, 30);         lab.setBounds(50, 280, 150, 30);         jt1.setBounds(150, 280, 100, 30);         lab1.setBounds(50, 340, 150, 30);         jt2.setBounds(200, 340, 160, 30);         jt3.setBounds(200, 400, 160, 30);         jButton2.setBounds(50, 460, 60, 30);         buttonPanel.add(jButton);         buttonPanel.add(jButton1);         buttonPanel.add(lab);         buttonPanel.add(jt1);         buttonPanel.add(lab1);         buttonPanel.add(jt2);         buttonPanel.add(lab2);         buttonPanel.add(jt3);         buttonPanel.add(jButton2);         add(buttonPanel);         buttonPanel.add(jt);               try {                        BufferedReader in = new BufferedReader(new FileReader("身份证号.txt"));            String temp = null;            while ((temp = in.readLine()) != null) {                Scanner linescanner = new Scanner(temp);                linescanner.useDelimiter(" ");                String name = linescanner.next();                String number = linescanner.next();                String sex = linescanner.next();                String age = linescanner.next();                String province = linescanner.nextLine();                Student student = new Student();                student.setName(name);                student.setnumber(number);                student.setsex(sex);                int a = Integer.parseInt(age);                student.setage(a);                student.setprovince(province);                studentlist.add(student);            }        } catch (FileNotFoundException e) {            System.out.println("学生信息文件找不到");            e.printStackTrace();        } catch (IOException e) {            System.out.println("学生信息文件读取错误");            e.printStackTrace();        }               jButton.addActionListener(new ActionListener() {                       public void actionPerformed(ActionEvent e) {                 jt.setText(null);                Collections.sort(studentlist);               jt.setText(studentlist.toString());               // jt.append(studentlist.toString());            }                     });        jButton1.addActionListener(new ActionListener() {            public void actionPerformed(ActionEvent e) {                int max = 0, min = 100;                int j, k1 = 0, k2 = 0;                for (int i = 1; i < studentlist.size(); i++) {                    j = ((Student) studentlist.get(i)).getage();                    if (j > max) {                        max = j;                        k1 = i;                    }                    if (j < min) {                        min = j;                        k2 = i;                    }                }                jt.setText("年龄最大：" + studentlist.get(k1) + "年龄最小：" + studentlist.get(k2));            }        });        jButton2.addActionListener(new ActionListener() {            public void actionPerformed(ActionEvent e) {                dispose();                System.exit(0);            }        });        jt1.addActionListener(new ActionListener() {            public void actionPerformed(ActionEvent e) {                String find = jt1.getText();                String text="";                String place = find.substring(0, 3);                for (int i = 0; i < studentlist.size(); i++) {                    if (((Student) studentlist.get(i)).getprovince().substring(1, 4).equals(place)) {                        text+="\n"+studentlist.get(i);                        jt.setText("老乡：" + text);                    }                }            }        });        jt2.addActionListener(new ActionListener() {            public void actionPerformed(ActionEvent e) {                String yourage = jt2.getText();                int a = Integer.parseInt(yourage);                int near = agenear(a);                int value = a - ((Student) studentlist.get(near)).getage();                jt.setText("年龄相近：" + studentlist.get(near));            }        });        jt3.addKeyListener(new KeyAdapter() {                                    public void keyTyped(KeyEvent e) {                list = new ArrayList<>();                Collections.sort(studentlist);                String key = jt3.getText();                for (int i = 1; i < studentlist.size(); i++) {                    if (((Student) studentlist.get(i)).getnumber().contains(key)) {                                                list.add((Student) studentlist.get(i));                                                jt.setText("你可能是：\n" + list);                                                                    }                                    }            }        });                                     }    public static int agenear(int age) {        int min = 53, value = 0, k = 0;        for (int i = 0; i < studentlist.size(); i++) {            value = ((Student) studentlist.get(i)).getage() - age;            if (value < 0)                value = -value;            if (value < min) {                min = value;                k = i;            }        }        return k;    }       }
     

package 身份证;import java.awt.*;import javax.swing.*; /** * @version 1.34 2015-06-12 * @author Cay Horstmann */public class demo1{   public static void main(String[] args)   {      EventQueue.invokeLater(() -> {         JFrame frame = new Main();         frame.setTitle("查询");         frame.setBounds(500, 50, 500, 500);         frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);         frame.setVisible(true);      });   }}

package 身份证;public  class Student  implements Comparable
     
       {    private String name;    private String number ;    private String sex ;    private int age;    private String province;       public String getName() {        return name;    }    public void setName(String name) {        this.name = name;    }    public String getnumber() {        return number;    }    public void setnumber(String number) {        this.number = number;    }    public String getsex() {        return sex ;    }    public void setsex(String sex ) {        this.sex =sex ;    }    public int getage() {        return age;        }        public void setage(int age) {                   this.age= age;        }    public String getprovince() {        return province;    }    public void setprovince(String province) {        this.province=province ;    }    public int compareTo(Student o) {       return this.name.compareTo(o.getName());    }    public String toString() {        return  name+"\t"+sex+"\t"+age+"\t"+number+"\t"+province+"\n";    }    }
     

运行结果如下：

    

练习3：采用GUI界面设计以下程序

l  编写一个计算器类，可以完成加、减、乘、除的操作

l  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；

l  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。

package shiwuzhou;import java.awt.Dimension;import java.awt.EventQueue;import java.awt.Toolkit;import javax.swing.JFrame;public class New {     public static void main (String args[])        {             Toolkit t=Toolkit.getDefaultToolkit();            Dimension s=t.getScreenSize();             EventQueue.invokeLater(() -> {                JFrame frame = new Demo();                frame.setBounds(0, 0,(int)s.getWidth()/2,(int)s.getHeight()/2);                frame.setTitle("第七组");                frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);                frame.setVisible(true);             });                } }

package shiwuzhou;import java.awt.Font;import java.awt.event.ActionEvent;import java.awt.event.ActionListener;import java.io.FileNotFoundException;import java.io.PrintWriter;import java.util.Collections;import java.util.Scanner;import javax.swing.*;import java.math.*;public class Demo extends JFrame {        private String[] c=new String[10];    private String[] c1=new String[10];    private int[] list=new int[10];    int i=0,i1=0,sum = 0;    private PrintWriter out = null;    private JTextArea text,text1;    private int counter;        public Demo()  {        JPanel Panel = new JPanel();        Panel.setLayout(null);        JLabel JLabel1=new JLabel("");        JLabel1.setBounds(500, 800, 400, 30);        JLabel1.setFont(new Font("Courier",Font.PLAIN,35));        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());        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());        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());         text=new JTextArea(30,80);text.setBounds(30, 50, 200, 50);         text.setFont(new Font("Courier",Font.PLAIN,35));         text1=new JTextArea(30,80);         text1.setBounds(270, 50, 200, 50);         text1.setFont(new Font("Courier",Font.PLAIN,35));         Panel.add(text);         Panel.add(text1);         Panel.add(Button);         Panel.add(Button2);         Panel.add(Button3);         Panel.add(JLabel1);         add(Panel);                                                            }        private class Action implements ActionListener    {    public void actionPerformed(ActionEvent event)        {                text1.setText("0");        if(i<10) {                int a = 1+(int)(Math.random() * 99);        int b = 1+(int)(Math.random() * 99);        int m= (int) Math.round(Math.random() * 3);      switch(m)      {      case 0:          while(a

 

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。

 总结：

学习内容：

1.Java语言特点与开发环境配置（第1章、第2章）

2.Java基本程序结构（第3章）  Java面向对象程序结构（第4章、第5章、第6章）

3.类、类间关系、类图

4.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）    

5.Java异常处理编程模型  

6. Java GUI编程模型

7.Java并发程序设计（第14章）

8.Java应用程序部署（第13章） 

学习方法：

课堂上老师的讲授以及实验课的实验、课后老师布置的作业、课后自己做的题以及MOOC平台上的视频。

学习心得：

       这一学期里我学习了Java这门编程语言，通过这一学期的学习我认识到自己的一些不足，所以感觉自己需要学会将所学的知识与实践结合起来，需要多实践、多练习。这一学期我们是一种老师课堂授课，助教课下和实验课解答疑惑以及演示实验的学习模式，这是我第一次用这种方式上课，所以觉得这种上课方式很新颖很好，因为如果我们遇到不懂的东西除了可以问同学以外还可以问助教，尤其是助教演示实验可以让我们学到很多。建议是：实验提交的时间可以延长一下因为有时候难度比较大的实验，短时间内做不出来。