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

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<Student> 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<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) {
           
        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<b){  
              b = (int) Math.round(Math.random() * 100);
              a = (int) Math.round(Math.random() * 100); 
          }  
          c[i]=(i+":"+a+"/"+b+"=");
          list[i]=Math.floorDiv(a, b);
          text.setText(i+":"+a+"/"+b+"=");
          i++;   
          break; 
      case 1:
          c[i]=(i+":"+a+"*"+b+"=");
                list[i]=Math.multiplyExact(a, b);
                text.setText(i+":"+a+"*"+b+"=");        
           i++;
          break;
       case 2:
          c[i]=(i+":"+a+"+"+b+"=");
                list[i]=Math.addExact(a, b);
          text.setText(i+":"+a+"+"+b+"=");
          i++;
          break ;
      case 3:
          while(a<=b){  
              b = (int) Math.round(Math.random() * 100);
              a = (int) Math.round(Math.random() * 100); 
          }    
          c[i]=(i+":"+a+"-"+b+"=");
          text.setText(i+":"+a+"-"+b+"=");
          list[i]=Math.subtractExact(a, b);
          i++;
          break ;
          }
        }
      }
    }      
    private class Action1 implements ActionListener
    {
        public void actionPerformed(ActionEvent event)
        {    
            if(i<10) {
                text.setText(null);        
                String daan=text1.getText().toString().trim();
                int a = Integer.parseInt(daan);
                if(text1.getText()!="") {
                    if(list[i1]==a) sum+=10;
                }        
                c1[i1]=daan;
                i1++; 
            }
        }
    }      
    

    private class Action2 implements ActionListener
    {
        public void actionPerformed(ActionEvent event)
            {
         
            try {
                out = new PrintWriter("text.txt");
            } catch (FileNotFoundException e) {
            // TODO Auto-generated catch block
                e.printStackTrace();
            }
            for(int counter=0;counter<10;counter++)
            {
                out.println(c[counter]+c1[counter]);
            }
            out.println("成绩"+sum);
            out.close();

            }

    }   
}

 

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。