馬昕璐 201771010118《面向對象程序設計（java）》第十八周學習總結
阿新 • • 發佈：2018-12-30
ext1 bool 控制 private strong width borde amp list
實驗十八 總復習
實驗時間 2018-12-30
1、實驗目的與要求
(1) 綜合掌握java基本程序結構；
(2) 綜合掌握java面向對象程序設計特點；
(3) 綜合掌握java GUI 程序設計結構；
(4) 綜合掌握java多線程編程模型；
(5) 綜合編程練習。
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：綜合編程練習
練習1：設計一個用戶信息采集程序，要求如下：
1） 用戶信息輸入界面如下圖所示:
（1）用戶點擊提交按鈕時，用戶輸入信息顯示控制臺界面；
（2）用戶點擊重置按鈕後，清空用戶已輸入信息；
（3）點擊窗口關閉，程序退出。
package demo; import java.awt.*; import javax.swing.*; public class Test { public static void main(String[] args) { EventQueue.invokeLater(() -> { Frame frame = new Frame(); frame.setTitle("Student Detail"); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); frame.setVisible(true); frame.setResizable(false); }); } }
package demo; import java.awt.*; import javax.swing.*; import java.awt.event.*; public class Frame extends JFrame { private JPanel panel; private JPanel panel1; private JPanel panel2; private JPanel buttonPanel;private JComboBox<String> faceCombo; private JCheckBox Reading; private JCheckBox Singing; private JCheckBox Dancing; private JPanel panelDanXuan; private ButtonGroup option; private JRadioButton optionA; private JRadioButton optionB; private static final int DEFAULT_WITH = 800; private static final int DEFAULT_HEIGHT = 400; public Frame() { //框架a panel = new JPanel(); panel.setPreferredSize(new Dimension(200,160)); panel.setLayout(new GridLayout(2,4)); JLabel lab = new JLabel("Name:", JLabel.CENTER); final JTextField jt = new JTextField(); JLabel lab1 = new JLabel("Qualification:", JLabel.CENTER); faceCombo = new JComboBox<>(); faceCombo.addItem("Graduate"); faceCombo.addItem("Not graduated"); JLabel lab2 = new JLabel("Adress:", JLabel.CENTER); final JTextArea jt1 = new JTextArea(); JLabel lab3 = new JLabel("Hobby:", JLabel.CENTER); panel1 = new JPanel(); Reading = new JCheckBox("Reading"); Singing = new JCheckBox("Singing"); Dancing = new JCheckBox("Dancing "); //框架b panel2 = new JPanel(); panel2.setPreferredSize(new Dimension(200,160)); JLabel lab4 = new JLabel("Sex:", JLabel.CENTER); panelDanXuan = new JPanel(); option = new ButtonGroup(); optionA = new JRadioButton("Male"); optionB = new JRadioButton("Female"); //框架c buttonPanel = new JPanel(); buttonPanel.setPreferredSize(new Dimension(200,80)); JButton jButton1 = new JButton("Validate"); JButton jButton2 = new JButton("Reset"); panel.add(lab); panel.add(jt); panel.add(lab1); panel.add(faceCombo); panel.add(lab2); panel.add(jt1); panel.add(lab3); panel1.add(Reading); panel1.add(Singing); panel1.add(Dancing); panel1.setBorder(BorderFactory.createTitledBorder("")); panel1.setLayout(new BoxLayout(panel1, BoxLayout.Y_AXIS)); panel.add(panel1); panel2.add(lab4); option.add(optionA); option.add(optionB); panelDanXuan.add(optionA); panelDanXuan.add(optionB); panelDanXuan.setBorder(BorderFactory.createTitledBorder("")); panelDanXuan.setLayout(new BoxLayout(panelDanXuan, BoxLayout.Y_AXIS)); panel2.add(panelDanXuan); buttonPanel.add(jButton1); buttonPanel.add(jButton2); add(panel, BorderLayout.NORTH); add(panel2, BorderLayout.WEST); add(buttonPanel, BorderLayout.SOUTH); setSize(DEFAULT_WITH, DEFAULT_HEIGHT); jButton1.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { String Name = jt.getText(); if (Name != null) { System.out.println("Name:"+Name); } String m = faceCombo.getSelectedItem().toString(); System.out.println("Qualification:"+m); String Adress = jt1.getText(); if (Adress != null) { System.out.println("Adress:"+Adress); } System.out.println("Hobby:"); if(Reading.isSelected()) { System.out.println(Reading.getText()); } if(Singing.isSelected()) { System.out.println(Singing.getText()); } if(Dancing.isSelected()) { System.out.println(Dancing.getText()); } System.out.println("Sex:"); if(optionA.isSelected()) { System.out.println(optionA.getText()); } if(optionB.isSelected()) { System.out.println(optionB.getText()); } } }); jButton2.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { jt.setText(""); jt1.setText(""); faceCombo.setSelectedItem("Graduate"); Reading.setSelected(false); Singing.setSelected(false); Dancing.setSelected(false); option.clearSelection(); } }); } }
練習2：采用GUI界面設計以下程序：
l 編制一個程序，將身份證號.txt 中的信息讀入到內存中；
l 按姓名字典序輸出人員信息；
l 查詢最大年齡的人員信息；
l 查詢最小年齡人員信息；
l 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；
l 查詢人員中是否有你的同鄉。
l 輸入身份證信息，查詢所提供身份證號的人員信息，要求輸入一個身份證數字時，查詢界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 身份查詢; 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("身份查詢系統"); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); frame.setVisible(true); }); } }
package 身份查詢; 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"; } }
package 身份查詢; 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:\\身份證號.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:按姓名字典序輸出人員信息"); Button2 = new JButton("2:查詢最大年齡與最小年齡人員信息"); Button3 = new JButton("查詢相近年齡"); JLabel1 = new JLabel("輸入身份證號或者地址查詢");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("信息讀取有誤"); 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("年齡最大： "+Personlist.get(k1)+"\n"+"年齡最小： "+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; } }
練習3：采用GUI界面設計以下程序
l 編寫一個計算器類，可以完成加、減、乘、除的操作
l 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序，由計算機隨機產生10道加減乘除練習題，學生輸入答案，由程序檢查答案是否正確，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；
l 將程序中測試練習題及學生答題結果輸出到文件，文件名為test.txt。
package 計算器; 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("計算器"); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); frame.setVisible(true); }); } }
package 計算器; 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("生成題目");Button.setBounds(50,150,150,50);Button.setFont(new Font("Courier",Font.PLAIN,20)); Button.addActionListener(new Action()); JButton Button2 = new JButton("確定答案");Button2.setBounds(300,150,150,50);Button2.setFont(new Font("Courier",Font.PLAIN,20));Button2.addActionListener(new Action1()); JButton Button3 = new JButton("讀出文件");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("成績"+sum); out.close(); } } }
務3：本學期課程已結束，請匯總《面向對象程序設計課程學習進度條》的數據，統計個人專業能力提升的數據。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基本程序結構（第3章）
Java面向對象程序結構（第4章、第5章、第6章）
類、類間關系、類圖
Java JDK預定義類/接口及其API（String-第3章、 Arrays-第3章、Files-第3章62頁、LocalDate-第4章、 Object-第5章、對象包裝器-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異常處理編程模型
Java GUI編程模型
Java並發程序設計（第14章）
Java應用程序部署（第13章）
學習心得：
通過本學期的學習，掌握了java的一些基本知識，對java有了一定的深入了解，並可以通過java編程來解決一些小問題，在實際問題的解決當中依然有問題。在今後的學習中還會繼續努力學習java，提升運用java編程去解決實際生活中的問題的能力。在今後的學習中會嘗試著去學習其他一些與java有關的課程。
在這一學期的學習中我收獲了很多，同時也感謝老師和助教學長一學期的悉心教導，在課程學習方面對我幫助了許多。
馬昕璐 201771010118《面向對象程序設計（java）》第十八周學習總結