王艳 201771010127《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。

程序如下：

import java.awt.EventQueue;

import javax.swing.JFrame;

public class Mian {

    public static void main(String[] args) {

        EventQueue.invokeLater(() -> {

            DemoJFrame page = new DemoJFrame();

        });

    }

}

import java.awt.Color;

import java.awt.Dimension;

import java.awt.FlowLayout;

import java.awt.GridLayout;

import java.awt.LayoutManager;

import java.awt.Panel;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import java.io.BufferedReader;

import java.io.File;

import java.io.FileInputStream;

import java.io.IOException;

import java.io.InputStreamReader;

import java.util.ArrayList;

import java.util.Timer;

import java.util.TimerTask;

import javax.swing.BorderFactory;

import javax.swing.ButtonGroup;

import javax.swing.ButtonModel;

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 nan;

    private JRadioButton nv;

    private JCheckBox sing;

    private JCheckBox dance;

    private JCheckBox draw;

    public DemoJFrame() {

        // 设置窗口大小

        this.setSize(, );

        // 设置可见性

        this.setVisible(true);

        // 设置标题

        this.setTitle("Student Detail");

        // 设置关闭操作

        this.setDefaultCloseOperation(EXIT_ON_CLOSE);

        // 设置窗口居中

        WinCenter.center(this);

        // 创建四个面板对象

        jPanel1 = new JPanel();

        setJPanel1(jPanel1);

        jPanel2 = new JPanel();

        setJPanel2(jPanel2);

        jPanel3 = new JPanel();

        setJPanel3(jPanel3);

        jPanel4 = new JPanel();

        setJPanel4(jPanel4);

        // 设置容器为流式布局

        FlowLayout flowLayout = new FlowLayout();

        this.setLayout(flowLayout);

        // 将四个面板添加到容器中

        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(, ));//设置此组件的首选大小

        // 给面板的布局设置为网格布局 一行4列

        jPanel.setLayout(new GridLayout(, ));

        JLabel name = new JLabel("Name:");

        name.setSize(, );

        fieldname = new JTextField("");

        fieldname.setSize(, );

        JLabel study = new JLabel("Qualification:");

        comboBox = new JComboBox();

        comboBox.addItem("Graduate");

        comboBox.addItem("senior");

        comboBox.addItem("Undergraduate");

        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(, ));

        // 给面板的布局设置为网格布局 一行4列

        jPanel.setLayout(new GridLayout(, ));

        JLabel name = new JLabel("Address:");

        fieldadress = new JTextField();

        fieldadress.setPreferredSize(new Dimension(, ));

        JLabel study = new JLabel("Hobby:");

        JPanel selectBox = new JPanel();

        selectBox.setBorder(BorderFactory.createTitledBorder(""));

        selectBox.setLayout(new GridLayout(, ));

        sing = new JCheckBox("Singing");

        dance = new JCheckBox("Dancing");

        draw = new JCheckBox("Reading");

        selectBox.add(sing);

        selectBox.add(dance);

        selectBox.add(draw);

        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(, ));

        FlowLayout flowLayout = new FlowLayout(FlowLayout.LEFT);

        jPanel.setLayout(flowLayout);

        JLabel sex = new JLabel("Sex:");

        JPanel selectBox = new JPanel();

        selectBox.setBorder(BorderFactory.createTitledBorder(""));

        selectBox.setLayout(new GridLayout(, ));

        bg = new ButtonGroup();

        nan = new JRadioButton("Male");

        nv = new JRadioButton("Female");

        bg.add(nan);

        bg.add(nv);

        selectBox.add(nan);

        selectBox.add(nv);

        jPanel.add(sex);

        jPanel.add(selectBox);

    }

    /*

     * 设置面板四

     */

    private void setJPanel4(JPanel jPanel) {

        // TODO 自动生成的方法存根

        jPanel.setPreferredSize(new Dimension(, ));

        FlowLayout flowLayout = new FlowLayout(FlowLayout.CENTER, , );

        jPanel.setLayout(flowLayout);

        jPanel.setLayout(flowLayout);

        JButton sublite = new JButton("Validate");

        JButton reset = new JButton("Reset");

        sublite.addActionListener((e) -> valiData());

        reset.addActionListener((e) -> Reset());

        jPanel.add(sublite);

        jPanel.add(reset);

    }

    /*

     * 提交数据

     */

    private void valiData() {

        // 拿到数据

        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 (sing.isSelected()) {

            hobbystring+="Singing   ";

        }

        if (dance.isSelected()) {

            hobbystring+="Dancing   ";

        }

        if (draw.isSelected()) {

            hobbystring+="Reading  ";

        }

        System.out.println(address);

        if (nan.isSelected()) {

            System.out.println("Male");

        }

        if (nv.isSelected()) {

            System.out.println("Female");

        }

        System.out.println(hobbystring);

    }

    /*

     * 重置

     */

    private void Reset() {

        fieldadress.setText(null);

        fieldname.setText(null);

        comboBox.setSelectedIndex();

        sing.setSelected(false);

        dance.setSelected(false);

        draw.setSelected(false);

        bg.clearSelection();

    }

}

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();//获取默认工具包

        Dimension sSize = tkit.getScreenSize();//获取屏幕的大小

        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)/ , (sSize.height - wSize.height)/ );//将组件移到新的位置

    }

}

程程序运行结果如下：

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。

import java.io.BufferedReader;

import java.io.File;

import java.io.FileInputStream;

import java.io.FileNotFoundException;

import java.io.IOException;

import java.io.InputStreamReader;

import java.util.ArrayList;

import java.util.Arrays;

import java.util.Collections;

import java.util.Scanner;

public class Main{

    private static ArrayList<Student> studentlist;

    public static void main(String[] args) {

        studentlist = new ArrayList<>();

        Scanner scanner = new Scanner(System.in);

        File file = new File("D:\\text");

        try {

            FileInputStream fis = new FileInputStream(file);

            BufferedReader in = new BufferedReader(new InputStreamReader(fis));

            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();

        }

        boolean isTrue = true;

        while (isTrue) {

            System.out.println("选择你的操作，输入正确格式的选项");

            System.out.println("A.字典排序");

            System.out.println("B.输出年龄最大和年龄最小的人");

            System.out.println("C.寻找老乡");

            System.out.println("D.寻找年龄相近的人");

            System.out.println("F.退出");

            String m = scanner.next();

            switch (m) {

            case "A":

                Collections.sort(studentlist);

                System.out.println(studentlist.toString());

                break;

            case "B":

                 int max=,min=;

                 int j,k1 = ,k2=;

                 for(int i=;i<studentlist.size();i++)

                 {

                     j=studentlist.get(i).getage();

                 if(j>max)

                 {

                     max=j;

                     k1=i;

                 }

                 if(j<min)

                 {

                   min=j;

                   k2=i;

                 }

                 }

                 System.out.println("年龄最大："+studentlist.get(k1));

                 System.out.println("年龄最小："+studentlist.get(k2));

                break;

            case "C":

                 System.out.println("老家?");

                 String find = scanner.next();

                 String place=find.substring(,);

                 for (int i = ; i <studentlist.size(); i++)

                 {

                     if(studentlist.get(i).getprovince().substring(,).equals(place))

                         System.out.println("老乡"+studentlist.get(i));

                 }

                 break;

            case "D":

                System.out.println("年龄：");

                int yourage = scanner.nextInt();

                int near=agenear(yourage);

                int value=yourage-studentlist.get(near).getage();

                System.out.println(""+studentlist.get(near));

                break;

            case "F":

                isTrue = false;

                System.out.println("退出程序!");

                break;

                default:

                System.out.println("输入有误");

            }

        }

    }

        public static int agenear(int age) {

        int j=,min=,value=,k=;

         for (int i = ; i < studentlist.size(); i++)

         {

             value=studentlist.get(i).getage()-age;

             if(value<) value=-value;

             if (value<min)

             {

                min=value;

                k=i;

             }

          }

         return k;

      }

}

public class Student implements Comparable<Student> {

    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) {

            // int a = Integer.parseInt(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";

    }

}

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。

程序如下：

import java.util.Scanner;

import java.io.FileNotFoundException;

import java.io.PrintWriter;

import java.util.Random;

public class Demo {

    public static void main(String[] args) {

        Scanner in = new Scanner(System.in);

        Number counter = new Number();

        PrintWriter out = null;

        try {

            out = new PrintWriter("text.txt");

        } catch (FileNotFoundException e) {

            // TODO Auto-generated catch block

            e.printStackTrace();

        }

        int sum = ;

        for (int i = ; i <= ; i++) {

            int a = (int) Math.round(Math.random() * );

            int b = (int) Math.round(Math.random() * );

            int m = (int) Math.round(Math.random() * );

            Random n = new Random();

            switch (m) {

            case :

                System.out.println(i + ": " + a + "/" + b + "=");

                while (b == ) {

                    b = (int) Math.round(Math.random() * );

                }

                int c = in.nextInt();

                out.println(a + "/" + b + "=" + c);

                if (c == counter.division(a, b)) {

                    sum += ;

                    System.out.println("恭喜答案正确");

                } else {

                    System.out.println("抱歉，答案错误");

                }

                break;

            case :

                System.out.println(i + ": " + a + "*" + b + "=");

                int c1 = in.nextInt();

                out.println(a + "*" + b + "=" + c1);

                if (c1 == counter.multiplication(a, b)) {

                    sum += ;

                    System.out.println("恭喜答案正确");

                } else {

                    System.out.println("抱歉，答案错误");

                }

                break;

            case :

                System.out.println(i + ": " + a + "+" + b + "=");

                int c2 = in.nextInt();

                out.println(a + "+" + b + "=" + c2);

                if (c2 == counter.add(a, b)) {

                    sum += ;

                    System.out.println("恭喜答案正确");

                } else {

                    System.out.println("抱歉，答案错误");

                }

                break;

            case :

                System.out.println(i + ": " + a + "-" + b + "=");

                int c3 = in.nextInt();

                out.println(a + "-" + b + "=" + c3);

                if (c3 == counter.reduce(a, b)) {

                    sum += ;

                    System.out.println("恭喜答案正确");

                } else {

                    System.out.println("抱歉，答案错误");

                }

                break;

            }

        }

        System.out.println("成绩" + sum);

        out.println("成绩:" + sum);

        out.close();

    }

}

public class Number {

    private int a;

    private int b;

    public int add(int a, int b) {

        return a + b;

    }

    public int reduce(int a, int b) {

        return a - b;

    }

    public int multiplication(int a, int b) {

        return a * b;

    }

    public int division(int a, int b) {

        if (b != )

            return a / b;

        else

            return ;

    }

}

程序运行结果：

三：实验总结

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。

这一学期，我们学习了java这门语言，一开始拿到书觉得那么厚无从下手，但是经过一学期的学习，对Java语言产生了很大的兴趣，总体来说，我们这学期学习了java的基本程序设计结构、对象与类、继承、接口、泛型程序设计以及图形用户界面几个大块。在学习过程中，老师主要采用课堂讲解，实验课上通过自己运行成型来强化理论知识。有时候线运行程序进行预习，在课堂讲解。此外，老师在课堂上请了助教，通过助教给我们演示以及讲解程序，我们也学到了很多东西。我知道，短短一学期的学习，来学习一门语言课程是远远不够的，虽然课程结束了，但我还会继续学习这门语言，提升自己的JAVA语言技能。

巴特西

王艳 201771010127《面向对象程序设计（java）》第十八周学习总结

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