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第十八週java實驗作業

實驗十八  總複習

實驗時間 2018-12-30

1、實驗目的與要求

(1) 綜合掌握java基本程式結構;

(2) 綜合掌握java面向物件程式設計特點;

(3) 綜合掌握java GUI 程式設計結構;

(4) 綜合掌握java多執行緒程式設計模型;

(5) 綜合程式設計練習。

2、實驗內容和步驟

任務1:填寫課程課後調查問卷,網址:https://www.wjx.cn/jq/33108969.aspx。

任務2:綜合程式設計練習

練習1:設計一個使用者資訊採集程式,要求如下:

(1) 使用者資訊輸入介面如下圖所示:

 

 

1)使用者點選提交按鈕時,使用者輸入資訊顯示控制檯介面;

2)使用者點選重置按鈕後,清空使用者已輸入資訊;

3)點選視窗關閉,程式退出。

 

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("使用者資訊錄入框");// 設定標題
            page.setSize(800, 400);// 設定視窗大小
          page.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);//設定關閉操作
          page.setVisible(true);//設定可見性
      });
   }
}
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() {
        //設定視窗居中
        WinCenter.center(this);
        // 建立四個面板物件
        jPanel1 = new JPanel();
        setJPanel1(jPanel1);
        jPanel2 = new JPanel();
        setJPanel2(jPanel2);
        jPanel3 = new JPanel();
        setJPanel3(jPanel3);
        jPanel4 = new JPanel();
        setJPanel4(jPanel4);
        // 設定容器的為流佈局
        FlowLayout flowLayout = new FlowLayout();
        this.setLayout(flowLayout);
        // 將四個面板新增到容器中
        this.add(jPanel1);
        this.add(jPanel2);
        this.add(jPanel3);
        this.add(jPanel4);

    }

    /*
     * 設定面一
     */
    private void setJPanel1(JPanel jPanel) {
        jPanel.setPreferredSize(new Dimension(700, 45));
        // 給面板的佈局設定為網格佈局 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("學歷:");
        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);

    }

    /*
     * 設定面板二
     */
    private void setJPanel2(JPanel jPanel) {
        jPanel.setPreferredSize(new Dimension(700, 50));
        // 給面板的佈局設定為網格佈局 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("愛好:");
        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("畫畫");
        selectBox.add(sing);
        selectBox.add(dance);
        selectBox.add(draw);
        jPanel.add(name);
        jPanel.add(fieldadress);
        jPanel.add(study);
        jPanel.add(selectBox);
    }

    /*
     * 設定面板三
     */
    private void setJPanel3(JPanel jPanel) {
        jPanel.setPreferredSize(new Dimension(700, 150));
        FlowLayout flowLayout = new FlowLayout(FlowLayout.LEFT);
        jPanel.setLayout(flowLayout);
        JLabel sex = new JLabel("性別:");
        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);

    }

    /*
     * 設定面板四
     */
    private void setJPanel4(JPanel jPanel) {
        // TODO 自動生成的方法存根
        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);
    }

    /*
     * 提交資料
     */
    private void valiData() {
        // 拿到資料(控制檯輸出)
        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("學歷:"+diploma);
        String hobbystring="";
        if (sing.isSelected()) {
            hobbystring+="唱歌   ";
        }
        if (dance.isSelected()) {
            hobbystring+="跳舞   ";
        }
        if (draw.isSelected()) {
            hobbystring+="畫畫  ";
        }
        System.out.println("地址:"+(address));
        if (man.isSelected()) {
            System.out.println("性別:"+"男");
        }
        if (woman.isSelected()) {
            System.out.println("性別:"+"女");
        }
        System.out.println("愛好:"+hobbystring);
    }

    /*
     * 重置
     */
    private void Reset() {
        // TODO 自動生成的方法存根
        fieldadress.setText(null);
        fieldname.setText(null);
        comboBox.setSelectedIndex(0);
        sing.setSelected(false);
        dance.setSelected(false);
        draw.setSelected(false);
        bg.clearSelection();
    }
}

執行結果:

 

練習2:採用GUI介面設計以下程式:

編制一個程式,將身份證號.txt 中的資訊讀入到記憶體中;

按姓名字典序輸出人員資訊;

查詢最大年齡的人員資訊;

查詢最小年齡人員資訊;

輸入你的年齡,查詢身份證號.txt中年齡與你最近人的姓名、身份證號、年齡、性別和出生地;

查詢人員中是否有你的同鄉。

輸入身份證資訊,查詢所提供身份證號的人員資訊,要求輸入一個身份證數字時,查詢介面就顯示滿足查詢條件的查詢結果,且隨著輸入的數字的增多,查詢匹配的範圍逐漸縮小。

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("身份證");
            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:\\身份證號.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("資訊檔案找不到");
            e.printStackTrace();
        } catch (IOException e) {
            // TODO Auto-generated catch block
            System.out.println("資訊檔案讀取錯誤");
            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("年齡最大和年齡最小");
        JLabel lab = new JLabel("尋找老鄉:", Label.LEFT);
        JTextField jt1 = new JTextField();
        JLabel lab1 = new JLabel("尋找年齡相近的人:", Label.LEFT);
        JTextField jt2 = new JTextField();
        JLabel lab2 = new JLabel("輸入你的身份證號碼:", Label.LEFT);
        JTextField jt3 = new JTextField();
        JButton jButton2 = new JButton("退出");

        jButton.addActionListener(new ActionListener() {

            @Override
            public void actionPerformed(ActionEvent e) {
                // TODO 自動生成的方法存根
                Collections.sort(cardlist);
                jt.setText(cardlist.toString());

            }
        });

        jButton1.addActionListener(new ActionListener() {

            @Override
            public void actionPerformed(ActionEvent e) {
                // TODO 自動生成的方法存根
                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("年齡最大:" + cardlist.get(k1) + "年齡最小:" + 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("老鄉:" + 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("年齡相近:" + cardlist.get(near));
            }
        });
        jt3.addKeyListener(new KeyAdapter() {
            public void keyTyped(KeyEvent e) {
                // TODO 自動生成的方法存根
                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;
    }
}

執行結果:

練習3:採用GUI介面設計以下程式

編寫一個計算器類,可以完成加、減、乘、除的操作

利用計算機類,設計一個小學生100以內數的四則運算練習程式,由計算機隨機產生10道加減乘除練習題,學生輸入答案,由程式檢查答案是否正確,每道題正確計10分,錯誤不計分,10道題測試結束後給出測試總分;

將程式中測試練習題及學生答題結果輸出到檔案,檔名為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("生成題目");

        Button button2 = new Button("生成檔案");
        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("答案正確");
                        } else
                            jt3.setText("答案錯誤");
                    }
                    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("成績為" + 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("計算器");
            frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
            frame.setVisible(true);
        });
    }
}

執行結果:

 

任務3:本學期課程已結束,請彙總《面向物件程式設計課程學習進度條》的資料,統計個人專業能力提升的資料。並從學習內容、學習方法、學習心得幾個方面進行課程學習總結,也希望你對課程的不足提出建議和意見。

 

學期學習總結:學習內容

Java語言特點與開發環境配置(第1章、第2章)

Java基本程式結構(第3章)

Java面向物件程式結構(第4章、第5章、第6章)(重點)

類、類間關係、類圖 

Java JDK預定義類/介面及其API

   (String-第3章、 Arrays-第3章、Files-第3章62頁、LocalDate-第4章、 Object-第5章、物件包裝器-第5章、Comparator-第6章、 異常類-第7章、ArrayList-第5+8章、第9章、第10-12章、 第14章)

Java異常處理程式設計模型

Java GUI程式設計模型 

Java併發程式設計(第14章) 

Java應用程式部署(第13章)

學習方法:

(1)課堂學習:分為實驗課和理論課,理論課上由老師講解java理論知識,實驗課上可以自己進行java程式碼的註釋,同時有助教進行一些程式設計示範

(2)課下學習:主要有周末完成實驗作業,同時助教也會直播進行程式設計示範,還有利用浙江大學翁凱老師的視訊資料進行自主學習。

個人總結:通過本學期的學習,我對java這門程式語言有了一定的瞭解和認識,遺憾的是自己對著門語言的自主應用能力還不是很好,程式設計能力非常欠缺,在今後的學習生涯中,java還有很大的應用價值,我不會放棄對這門語言的繼續學習,希望自己以後可以利用java解決一些小的實際問題。同時感謝老師和助教這一學習的教導。幫助我學到了很多知識。