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<String> 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<Person> 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 <Personlist.size(); 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 <Personlist.size(); 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<Personlist.size();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<Person> {
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(a<b){ b = (int) 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。
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