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 {
    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 cardlist;
    private static ArrayList 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。