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。
