201771010112罗松《面向对象程序设计（java）》第十八周学习总结

 

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 图形用户界面;

import java.awt.EventQueue;

import javax.swing.JFrame;

public class Gui {

       public static void main(String[] args)
       {
          EventQueue.invokeLater(() -> {
             JFrame frame = new FrameTest();
             frame.setTitle("罗松");
             frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
             frame.setVisible(true);
          });
       }
    }

Gui

package 图形用户界面;

import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.*;
import javax.swing.*;

class FrameTest extends JFrame
{
    
    private JPanel panel;
    private JTextArea text,text2;
    private JRadioButton JRadioButton1,JRadioButton2;
    private ButtonGroup ButtonGroup;
    private JLabel JLabel;
    private JCheckBox h1,h2,h3;
    private JComboBox JComboBox;
    private JButton Button,Button2;
    
    
   public FrameTest()
   {
      setSize(700,500);
      panel=new JPanel();
      panel.setLayout(null);

      ButtonGroup=new ButtonGroup();
      JRadioButton1=new JRadioButton("Male",false);   JRadioButton1.setBounds(150,330, 80, 50);
      JRadioButton2=new JRadioButton("Female",false); JRadioButton2.setBounds(150,300, 80,50);
      ButtonGroup.add(JRadioButton1);
      ButtonGroup.add(JRadioButton2);
      
      addJLabel("sex:",100,300);
      addJLabel("name:",100,50);
      addJLabel("address:",100,150);
      addJLabel("Qualification:",400,50);
      addJLabel("Hobby:",400,150);
      
      
      text=new JTextArea(1,1);text.setBounds(150,70, 120, 30);text.setLineWrap(true);
      text2=new JTextArea(5,3);text2.setBounds(150,160, 130, 100);text2.setLineWrap(true);
      
      
      h1=new JCheckBox("Reading");h1.setBounds(450,160,100,30);
      h2=new JCheckBox("dancing");h2.setBounds(450,180,100,30);
      h3=new JCheckBox("singing");h3.setBounds(450,200,100,30);

      
      JComboBox=new JComboBox<>();
      JComboBox.addItem("Graduate");
      JComboBox.addItem("Graduate1");
      JComboBox.addItem("Graduate2");
      JComboBox.setBounds(500,65, 100, 20);
      
      Button = new JButton("提交");Button.setBounds(200, 400, 100, 35);
      Button2 = new JButton("重置");Button2.setBounds(400, 400, 100, 35);

      Button.addActionListener(new Action1());
      Button2.addActionListener(new Action2());
      
      panel.add(h1);
      panel.add(h2);
      panel.add(h3);
      panel.add(Button);
      panel.add(Button2);
      panel.add(JComboBox);
      panel.add(text);
      panel.add(text2);
      panel.add(JRadioButton1);
      panel.add(JRadioButton2);
      add(panel);
      
      
   }
   
   
   public void addJLabel(String n,int a,int b)
   {
       JLabel = new JLabel(n);
       JLabel.setBounds(a,b,100,50);
       panel.add(JLabel);
   }

   private class Action1 implements ActionListener
   {
   public void actionPerformed(ActionEvent event)
       {        
       System.out.println("name:"+text.getText()+"\n"+"address:"+text2.getText());
       System.out.println("Qualification:"+JComboBox.getSelectedItem());
       System.out.println("Hobby:");
       if(h1.isSelected()==true)System.out.print(h1.getText());
       if(h2.isSelected()==true)System.out.print(h2.getText());
       if(h3.isSelected()==true)System.out.print(h3.getText());
       System.out.println("\n"+"sex:");
       if(JRadioButton1.isSelected()==true)System.out.println(JRadioButton1.getText());
       if(JRadioButton2.isSelected()==true)System.out.println(JRadioButton2.getText());
       System.out.println("\n");
       }
   } 
   private class Action2 implements ActionListener
   {
   public void actionPerformed(ActionEvent event)
       {        
       text.setText(null);
       text2.setText(null);
       h1.setSelected(false);
       h2.setSelected(false);
       h3.setSelected(false);
       ButtonGroup.clearSelection();
       JComboBox.setSelectedIndex(0);
       }
   }   
   private class Action21 implements ActionListener
   {
   public void actionPerformed(ActionEvent event)
       {        
       text.setText(null);
       text2.setText(null);
       h1.setSelected(false);
       h2.setSelected(false);
       h3.setSelected(false);
       ButtonGroup.clearSelection();
       JComboBox.setSelectedIndex(0);
       }
   }   
}

FrameTest

 

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 unsynch;

import java.awt.BorderLayout;
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.FileNotFoundException;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.*;
import java.util.Timer;
import javax.swing.*;

public class Main1 extends JFrame
{
    private static ArrayList Personlist;
    
    
    Scanner scanner = new Scanner(System.in);
    File file = new File("F:\\身份证号.txt");
    
    private JPanel Panel;
    private JLabel JLabel1;
    private JButton Button,Button2,Button3;
    private JTextArea text,text1,text2,text3;
    boolean tru=true;
    
    
    
    public  Main1() {

        
        Panel = new JPanel();Panel.setLayout(null);
        Button = new JButton("1:按姓名字典序输出人员信息");
        Button2 = new JButton("2:查询最大年龄与最小年龄人员信息");
        Button3 = new JButton("查询相近年龄");
        JLabel1 = new JLabel("输入身份证号或者地址查询");JLabel1.setBounds(900, 50, 400, 30);
        
        text=new JTextArea(30,80);text.setBounds(50, 180, 700, 700);
        text1=new JTextArea(1,30);text1.setBounds(900, 80, 400, 30);
        text2=new JTextArea(30,80);text2.setBounds(900,180,700, 700);
        text3=new JTextArea(30,80);text3.setBounds(420,100,200,40);
       
        Button.addActionListener(new Action());Button.setBounds(50,50,300,40);
        Button2.addActionListener(new Action1());Button2.setBounds(50,100,300,40);
        Button3.addActionListener(new Action2());Button3.setBounds(650,100,120,40);
        Panel.add(JLabel1);
        Panel.add(Button);
        Panel.add(Button2);
        Panel.add(Button3);
        Panel.add(text);
        Panel.add(text2);           Panel.add(text1);
        Panel.add(text3);
        add(Panel);
        
        
        Timer timer = new Timer();      
        TimerTask timeTask=new TimerTask() {
            
             @Override
            public void run()
             {             
                     // TODO Auto-generated method stub
                     text2.setText(null);
                     String place=text1.getText().toString().trim();
                     for (int i = 0; i ) 
                     {                         
                         String Str=(String)Personlist.get(i).getbirthplace();
                         if(Str.contains(place)&&!place.equals("")) 
                             {
                             text2.append(Personlist.get(i).toString());
                             }  
                    }      
                     for (int i = 0; i ) 
                     {
                         
                         String Str=(String)Personlist.get(i).getID();
                         if(Str.contains(place)&&!place.equals("")) 
                             {
                             text2.append(Personlist.get(i).toString());
                             }  
                    }    
                     
            }
            
        };timer.schedule(timeTask, 0,100);
     
        Personlist = new ArrayList<>();       
        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 place =linescanner.nextLine();
                Person Person = new Person();
                Person.setname(name);
                Person.setID(ID);
                Person.setsex(sex);
                int a = Integer.parseInt(age);
                Person.setage(a);
                Person.setbirthplace(place);
                Personlist.add(Person);

            }
        } catch (FileNotFoundException e) {
            System.out.println("查找不到信息");
            e.printStackTrace();
        } catch (IOException e) {
            System.out.println("信息读取有误");
            e.printStackTrace();
        }
 
        
    }
    
    


    private class Action implements ActionListener
    {
    public void actionPerformed(ActionEvent event)
        {        
         text.setText(null);
         Collections.sort(Personlist);
         text.append(Personlist.toString());
        }

    }         

    private class Action1 implements ActionListener
        {
        public void actionPerformed(ActionEvent event)
            {        
            text.setText(null);
            int max=0,min=100;int j,k1 = 0,k2=0;
            for(int i=1;i)
            {
                j=Personlist.get(i).getage();
               if(j>max)
               {
                   max=j; 
                   k1=i;
               }
               if(j<min)
               {
                   min=j; 
                   k2=i;
               }
            }  
            text.append("年龄最大：   "+Personlist.get(k1)+"\n"+"年龄最小：  "+Personlist.get(k2));     
            }
   
        }          

  private class Action2 implements ActionListener
    {
    public void actionPerformed(ActionEvent event)
        {        
         text.setText(null);
         int a = Integer.parseInt(text3.getText().toString().trim());         
         int d_value=a-Personlist.get(agenear(a)).getage();
         
         for (int i = 0; i < Personlist.size(); i++)
         {
             int p=Personlist.get(i).getage()-a;
            
             if(p==d_value||-p==d_value) text.append(Personlist.get(i).toString());
         } 
        }

    } 
    
    
    public static int agenear(int age) {
        
        int j=0,min=53,d_value=0,k=0;
         for (int i = 0; i < Personlist.size(); i++)
         {
             d_value=Personlist.get(i).getage()-age;
             if(d_value<0) d_value=-d_value; 
             if (d_value<min) 
             {
                min=d_value;                   k=i;
             }

          }    return k;
         
      }

}
package unsynch;

    import java.awt.Dimension;
    import java.awt.EventQueue;
    import java.awt.Toolkit;

    import javax.swing.JFrame;

    public class Out {

         public static void main (String args[])
            {
                 Toolkit t=Toolkit.getDefaultToolkit();
                Dimension s=t.getScreenSize(); 
                EventQueue.invokeLater(() -> {
                    JFrame frame = new Main1();
                    frame.setBounds(0, 0,(int)s.getWidth(),(int)s.getHeight());
                    frame.setTitle("身份查询系统");
                    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
                    frame.setVisible(true);
                 });        
            }
     
    }
package unsynch;

public class Person implements Comparable {
        private String name;
        private String ID;
        private int age;
        private String sex;
        private String birthplace;

        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 int getage() {

        return age;
        }
        public void setage(int age) {
        this.age= age;
        }
        public String getsex() {
        return sex;
        }
        public void setsex(String sex) {
        this.sex= sex;
        }
        public String getbirthplace() {
        return birthplace;
        }
        public void setbirthplace(String birthplace) {
        this.birthplace= birthplace;
        }

        public int compareTo(Person o) {
           return this.name.compareTo(o.getname());

        }

        public String toString() {
            return  name+"\t"+sex+"\t"+age+"\t"+ID+"\t"+birthplace+"\n";

        }
  }

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。

import java.awt.Dimension;
import java.awt.EventQueue;
import java.awt.Toolkit;

import javax.swing.JFrame;

public class main {

     public static void main (String args[])
        {
             Toolkit t=Toolkit.getDefaultToolkit();
            Dimension s=t.getScreenSize(); 
            EventQueue.invokeLater(() -> {
                JFrame frame = new nic();
                frame.setBounds(0, 0,(int)s.getWidth()/2,(int)s.getHeight()/2);
                frame.setTitle("大师");
                frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
                frame.setVisible(true);
             });        
        }
 
}
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 nic extends JFrame {
    
    private String[] c=new String[10];
    private String[] c1=new String[11];
    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 nic()  {
        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("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");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<11) {
        
        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 1:
          while(aint) Math.round(Math.random() * 100);a = (int) Math.round(Math.random() * 100); }  
          c[i]=((i+1)+":"+a+"/"+b+"=");
            list[(i+1)]=Math.floorDiv(a, b);
            text.setText((i+1)+":"+a+"/"+b+"=");
            i++;
            
          break; 
      case 2:
          c[i]=((i+1)+":"+a+"*"+b+"=");
          list[(i+1)]=Math.multiplyExact(a, b);
          text.setText((i+1)+":"+a+"*"+b+"=");        
         i++;
          break;
      case 3:
          c[i]=((i+1)+":"+a+"+"+b+"=");
          list[(i+1)]=Math.addExact(a, b);
         text.setText((i+1)+":"+a+"+"+b+"=");
         i++;
          break ;
      case 4:
          while(a<=b){  b = (int) Math.round(Math.random() * 100);a = (int) Math.round(Math.random() * 100); }    
          c[i]=((i+1)+":"+a+"-"+b+"=");
          text.setText((i+1)+":"+a+"-"+b+"=");
          list[(i+1)]=Math.subtractExact(a, b);
          i++;

          break ;
          }
        }
      }
    }      
    private class Action1 implements ActionListener
    {
    public void actionPerformed(ActionEvent event)
        {    
        if(i<10) {
             
        String daan=text1.getText().toString().trim();
        int a = Integer.parseInt(daan);
        if(text1.getText()!="  ") {
         if(list[i1]==a) sum+=10;
         }
        
         c1[i1]=daan;
         
         i1++;
         
        }
      }
    }

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。

实验总结：

一学期的java课结束了，收获还是挺多的，以后在空闲时间还会继续学习java。