第十八周java实验作业

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 bounceThread;

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 bounceThread;

import java.awt.EventQueue;

import javax.swing.JFrame;

public class Mian

{

   public static void main(String[] args)

   {

      EventQueue.invokeLater(() -> {

          DemoJFrame page = new DemoJFrame();

            page.setTitle("用户信息录入框");// 设置标题

            page.setSize(800, 400);// 设置窗口大小

          page.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);//设置关闭操作

          page.setVisible(true);//设置可见性

      });

   }

}

package bounceThread;

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 man;

    private JRadioButton woman;

    private JCheckBox sing;

    private JCheckBox dance;

    private JCheckBox draw;

    public DemoJFrame() {

        //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);

        // 设置容器的为流布局

        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);

    }

    /*

     * 设置面一

     */

    private void setJPanel1(JPanel jPanel) {

        jPanel.setPreferredSize(new Dimension(700, 45));

        // 给面板的布局设置为网格布局 一行4列

        jPanel.setLayout(new GridLayout(1, 4));

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

        name.setSize(100, 50);

        fieldname = new JTextField("");

        fieldname.setSize(80, 20);

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

        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));

        // 给面板的布局设置为网格布局 一行4列

        jPanel.setLayout(new GridLayout(1, 4));

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

        fieldadress = new JTextField();

        fieldadress.setPreferredSize(new Dimension(150, 50));

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

        JPanel selectBox = new JPanel();

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

        selectBox.setLayout(new GridLayout(3, 1));

        sing = new JCheckBox("唱歌");

        dance = new JCheckBox("跳舞");

        draw = new JCheckBox("画画");

        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(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();

        man = new JRadioButton("男");

        woman = new JRadioButton("女");

        bg.add(man);

        bg.add(woman);

        selectBox.add(man);

        selectBox.add(woman);

        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(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() {

        // 拿到数据（控制台输出）

        String name = fieldname.getText().toString().trim();

        String diploma = comboBox.getSelectedItem().toString().trim();

        String address = fieldadress.getText().toString().trim();

        System.out.println("姓名:"+name);

        System.out.println("学历:"+diploma);

        String hobbystring="";

        if (sing.isSelected()) {

            hobbystring+="唱歌   ";

        }

        if (dance.isSelected()) {

            hobbystring+="跳舞   ";

        }

        if (draw.isSelected()) {

            hobbystring+="画画  ";

        }

        System.out.println("地址:"+(address));

        if (man.isSelected()) {

            System.out.println("性别:"+"男");

        }

        if (woman.isSelected()) {

            System.out.println("性别:"+"女");

        }

        System.out.println("爱好:"+hobbystring);

    }

    /*

     * 重置

     */

    private void Reset() {

        // TODO 自动生成的方法存根

        fieldadress.setText(null);

        fieldname.setText(null);

        comboBox.setSelectedIndex(0);

        sing.setSelected(false);

        dance.setSelected(false);

        draw.setSelected(false);

        bg.clearSelection();

    }

}

运行结果：

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。

package bounceThread;

import java.awt.*;

import javax.swing.*;

public class CardTest {

    public static void main(String[] args) {

        EventQueue.invokeLater(() -> {

            JFrame frame = new Main();

            frame.setTitle("身份证");

            frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

            frame.setVisible(true);

        });

    }

}

package bounceThread;

public class Card implements Comparable<Card> {

    private String name;

    private String id;

    private String sex;

    private int age;

    private String area;

    public String getName() {

        return name;

    }

    public void setName(String name) {

        this.name = name;

    }

    public String getId() {

        return id;

    }

    public void setId(String id) {

        this.id = id;

    }

    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 getArea() {

        return area;

    }

    public void setArea(String area) {

        this.area = area;

    }

    public int compareTo(Card c) {

        return this.name.compareTo(c.getName());

    }

    public String toString() {

        return name + "\t" + id + "\t" + sex + "\t" + age + "\t" + area + "\n";

    }

}

package bounceThread;

import java.awt.*;

import java.awt.event.*;

import java.io.*;

import java.util.*;

import javax.swing.*;

public class Main extends JFrame {

    private static ArrayList<Card> cardlist;

    private static ArrayList<Card> list;

    private JPanel panel;

    private JPanel Panel1;

    private static final int DEFAULT_WITH = 600;

    private static final int DEFAULT_HEIGHT = 300;

    public Main() {

        cardlist = new ArrayList<>();

        Scanner scanner = new Scanner(System.in);

        File file = new File("C:\\身份证号.txt");

        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 id = linescanner.next();

                String sex = linescanner.next();

                String age = linescanner.next();

                String area = linescanner.nextLine();

                Card card = new Card();

                card.setName(name);

                card.setId(id);

                card.setSex(sex);

                int a = Integer.parseInt(age);

                card.setAge(a);

                card.setArea(area);

                cardlist.add(card);

            }

        } catch (FileNotFoundException e) {

            // TODO Auto-generated catch block

            System.out.println("信息文件找不到");

            e.printStackTrace();

        } catch (IOException e) {

            // TODO Auto-generated catch block

            System.out.println("信息文件读取错误");

            e.printStackTrace();

        }

        panel = new JPanel();

        panel.setLayout(new BorderLayout());

        JTextArea jt = new JTextArea();

        panel.add(jt);

        add(panel, BorderLayout.NORTH);

        Panel1 = new JPanel();

        Panel1.setLayout(new GridLayout(1, 9));

        JButton jButton = new JButton("字典排序");

        JButton jButton1 = new JButton("年龄最大和年龄最小");

        JLabel lab = new JLabel("寻找老乡:", Label.LEFT);

        JTextField jt1 = new JTextField();

        JLabel lab1 = new JLabel("寻找年龄相近的人：", Label.LEFT);

        JTextField jt2 = new JTextField();

        JLabel lab2 = new JLabel("输入你的身份证号码：", Label.LEFT);

        JTextField jt3 = new JTextField();

        JButton jButton2 = new JButton("退出");

        jButton.addActionListener(new ActionListener() {

            @Override

            public void actionPerformed(ActionEvent e) {

                // TODO 自动生成的方法存根

                Collections.sort(cardlist);

                jt.setText(cardlist.toString());

            }

        });

        jButton1.addActionListener(new ActionListener() {

            @Override

            public void actionPerformed(ActionEvent e) {

                // TODO 自动生成的方法存根

                int max = 0, min = 100;

                int j, k1 = 0, k2 = 0;

                for (int i = 1; i < cardlist.size(); i++) {

                    j = cardlist.get(i).getAge();

                    if (j > max) {

                        max = j;

                        k1 = i;

                    }

                    if (j < min) {

                        min = j;

                        k2 = i;

                    }

                }

                jt.setText("年龄最大：" + cardlist.get(k1) + "年龄最小：" + cardlist.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 < cardlist.size(); i++) {

                    if (cardlist.get(i).getArea().substring(1, 4).equals(place)) {

                        text += "\n" + cardlist.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);

                jt.setText("年龄相近：" + cardlist.get(near));

            }

        });

        jt3.addKeyListener(new KeyAdapter() {

            public void keyTyped(KeyEvent e) {

                // TODO 自动生成的方法存根

                list = new ArrayList<>();

                Collections.sort(cardlist);

                String key = jt3.getText();

                for (int i = 1; i < cardlist.size(); i++) {

                    if (cardlist.get(i).getId().contains(key)) {

                        list.add(cardlist.get(i));

                        jt.setText("你可能是：\n" + list);

                    }

                }

            }

        });

        Panel1.add(jButton);

        Panel1.add(jButton1);

        Panel1.add(lab);

        Panel1.add(jt1);

        Panel1.add(lab1);

        Panel1.add(jt2);

        Panel1.add(lab2);

        Panel1.add(jt3);

        Panel1.add(jButton2);

        add(Panel1, BorderLayout.SOUTH);

        setSize(DEFAULT_WITH, DEFAULT_HEIGHT);

    }

    public static int agenear(int age) {

        int j = 0, min = 100, value = 0, k = 0;

        for (int i = 0; i < cardlist.size(); i++) {

            value = cardlist.get(i).getAge() - age;

            if (value < 0)

                value = -value;

            if (value < min) {

                min = value;

                k = i;

            }

        }

        return k;

    }

}

运行结果：

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。

package bounceThread;

import java.awt.*;

import java.awt.event.*;

import java.io.*;

import java.util.*;

import javax.swing.*;

public class Demo extends JFrame {

    int i = 0, i1 = 0, k = 0, sum = 0;

    private PrintWriter out = null;

    private String[] c1 = new String[10];

    private String[] c2 = new String[10];

    public Demo() {

        JPanel panel = new JPanel();

        panel.setLayout(new GridLayout(1, 3));

        JTextArea jt1 = new JTextArea();

        JTextField jt2 = new JTextField();

        JTextArea jt3 = new JTextArea();

        panel.add(jt1);

        panel.add(jt2);

        panel.add(jt3);

        add(panel, BorderLayout.NORTH);

        JPanel panel1 = new JPanel();

        panel1.setLayout(new GridLayout(1, 2));

        Button button1 = new Button("生成题目");

        Button button2 = new Button("生成文件");

        panel1.add(button1);

        panel1.add(button2);

        add(panel1, BorderLayout.SOUTH);

        setSize(600, 300);

        button1.addActionListener(new ActionListener() {

            @Override

            public void actionPerformed(ActionEvent e) {

                jt2.setText(null);

                jt3.setText(null);

                if (i < 10) {

                    int a = (int) (Math.random() * 100);

                    int b = (int) (Math.random() * 100);

                    int m = (int) Math.round(Math.random() * 3);

                    switch (m) {

                    case 0:

                        while (b == 0 || a % b != 0) {

                            b = (int) Math.round(Math.random() * 100);

                            a = (int) Math.round(Math.random() * 100);

                        }

                        jt1.setText(i + 1 + ": " + a + "/" + b + "=");

                        c1[i] = jt1.getText();

                        k = a / b;

                        i++;

                        break;

                    case 1:

                        jt1.setText(i + 1 + ": " + a + "*" + b + "=");

                        c1[i] = jt1.getText();

                        k = a * b;

                        i++;

                        break;

                    case 2:

                        jt1.setText(i + 1 + ": " + a + "+" + b + "=");

                        c1[i] = jt1.getText();

                        k = a + b;

                        i++;

                        break;

                    case 3:

                        while (a < b) {

                            int x = a;

                            a = b;

                            b = x;

                        }

                        jt1.setText(i + 1 + ": " + a + "-" + b + "=");

                        c1[i] = jt1.getText();

                        k = a - b;

                        i++;

                        break;

                    }

                }

            }

        });

        jt2.addActionListener(new ActionListener() {

            @Override

            public void actionPerformed(ActionEvent e) {

                if (i < 11) {

                    int find = Integer.parseInt(jt2.getText());

                    String d = jt2.getText().toString().trim();

                    if (jt2.getText() != "") {

                        if (find == k) {

                            sum += 10;

                            jt3.setText("答案正确");

                        } else

                            jt3.setText("答案错误");

                    }

                    c2[i1] = d;

                    i1++;

                }

            }

        });

        button2.addActionListener(new ActionListener() {

            @Override

            public void actionPerformed(ActionEvent e) {

                try {

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

                } catch (FileNotFoundException e1) {

                    e1.printStackTrace();

                }

                for (int counter = 0; counter < 10; counter++) {

                    out.println(c1[counter] + c2[counter]);

                }

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

                out.close();

            }

        });

    }

}

package bounceThread;

import java.awt.*;

import javax.swing.*;

public class DemoTest {

    public static void main(String[] args) {

        EventQueue.invokeLater(() -> {

            JFrame frame = new Demo();

            frame.setTitle("计算器");

            frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

            frame.setVisible(true);

        });

    }

}

运行结果：

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。

学期学习总结：学习内容

Java语言特点与开发环境配置（第1章、第2章）

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）（重点）

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（第14章）

Java应用程序部署（第13章）

学习方法：

（1）课堂学习：分为实验课和理论课，理论课上由老师讲解java理论知识，实验课上可以自己进行java代码的注释，同时有助教进行一些编程示范

（2）课下学习：主要有周末完成实验作业，同时助教也会直播进行编程示范，还有利用浙江大学翁凯老师的视频资料进行自主学习。

个人总结：通过本学期的学习，我对java这门程序语言有了一定的了解和认识，遗憾的是自己对着门语言的自主应用能力还不是很好，编程能力非常欠缺，在今后的学习生涯中，java还有很大的应用价值，我不会放弃对这门语言的继续学习，希望自己以后可以利用java解决一些小的实际问题。同时感谢老师和助教这一学习的教导。帮助我学到了很多知识。

巴特西

第十八周java实验作业

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