201771010130 王志成《面向物件程式設計(java)》第十八週學習總結
第一部分:理論知識學習部分
總複習綱要
1. Java語言特點與開發環境配置(第1章、第2章)
2. Java基本程式結構(第3章)
3. Java面向物件程式結構(第4章、第5章、第6章)
4. 類、類間關係、類圖
5. Java JDK預定義類/介面及其API(String-第3章、 Arrays-第3章、Files-第3章62頁、LocalDate-第4章、 Object-第5章、物件包裝器-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異常處理程式設計模型
— Java GUI程式設計模型
6. Java併發程式設計(第14章)
7. Java應用程式部署(第13章)
第二部分:實驗部分——實驗十八 總複習
實驗時間 2018-12-30
1、實驗目的與要求
(1) 綜合掌握java基本程式結構;
(2) 綜合掌握java面向物件程式設計特點;
(3) 綜合掌握java GUI 程式設計結構;
(4) 綜合掌握java多執行緒程式設計模型;
(5) 綜合程式設計練習。
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:綜合程式設計練習
練習1:設計一個使用者資訊採集程式,要求如下:
(1) 使用者資訊輸入介面如下圖所示:
(1)使用者點選提交按鈕時,使用者輸入資訊顯示控制檯介面;
(2)使用者點選重置按鈕後,清空使用者已輸入資訊;
(3)點選視窗關閉,程式退出
package jiemian; import java.awt.EventQueue; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import javax.swing.ButtonGroup;View Codeimport 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.JTextArea; public class aaa { public static void main(String[] args) { EventQueue.invokeLater(() -> { JFrame frame = new FrameTest(); frame.setTitle("WZC"); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); frame.setVisible(true); }); } } class FrameTest extends JFrame { private JPanel panel; private JRadioButton JRadioButton1,JRadioButton2; private ButtonGroup ButtonGroup; private JLabel JLabel; private JTextArea fieldname,fieldadress; private JCheckBox Read,dance,sing; private JComboBox<String> JComboBox; private JButton Button1,Button2; public FrameTest() { setSize(700,500); panel=new JPanel(); panel.setLayout(null); ButtonGroup=new ButtonGroup(); JRadioButton1=new JRadioButton("男",false); JRadioButton1.setBounds(130,330, 80, 50); JRadioButton2=new JRadioButton("女",false); JRadioButton2.setBounds(130,300, 80,50); ButtonGroup.add(JRadioButton1); ButtonGroup.add(JRadioButton2); addJLabel("性別:",100,300); addJLabel("姓名:",100,50); addJLabel("地址:",90,150); addJLabel("資格:",400,50); addJLabel("喜好:",400,150); fieldname=new JTextArea(1,1);fieldname.setBounds(150,70, 120, 30);fieldname.setLineWrap(true); fieldadress=new JTextArea(5,3);fieldadress.setBounds(150,160, 130, 100);fieldadress.setLineWrap(true); Read=new JCheckBox("讀書");Read.setBounds(450,160,100,30); dance=new JCheckBox("跳舞");dance.setBounds(450,180,100,30); sing=new JCheckBox("唱歌");sing.setBounds(450,200,100,30); JComboBox=new JComboBox<>(); JComboBox.addItem("研究生"); JComboBox.addItem("本科生"); JComboBox.addItem("專科生"); JComboBox.setBounds(500,65, 100, 20); Button1 = new JButton("提交");Button1.setBounds(200, 400, 100, 35); Button2 = new JButton("重置");Button2.setBounds(400, 400, 100, 35); Button1.addActionListener(new Action1()); Button2.addActionListener(new Action2()); panel.add(Button2); panel.add(Button1); panel.add(JComboBox); panel.add(Read); panel.add(dance); panel.add(sing); panel.add(fieldname); panel.add(fieldadress); 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:"+fieldname.getText()+"\n"+"address:"+fieldadress.getText()); System.out.println("Qualification:"+JComboBox.getSelectedItem()); System.out.println("Hobby:"); if(Read.isSelected()==true)System.out.print(Read.getText()); if(dance.isSelected()==true)System.out.print(dance.getText()); if(sing.isSelected()==true)System.out.print(sing.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) { fieldname.setText(null); fieldadress.setText(null); Read.setSelected(false); dance.setSelected(false); sing.setSelected(false); ButtonGroup.clearSelection(); JComboBox.setSelectedIndex(0); } } }
練習2:採用GUI介面設計以下程式:
1.編制一個程式,將身份證號.txt 中的資訊讀入到記憶體中;
2.按姓名字典序輸出人員資訊;
3.查詢最大年齡的人員資訊;
4.查詢最小年齡人員資訊;
5.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;
6.查詢人員中是否有你的同鄉。
7.輸入身份證資訊,查詢所提供身份證號的人員資訊,要求輸入一個身份證數字時,查詢介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 shiwuzhou; 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("第四組"); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); frame.setVisible(true); }); } } OutView Code
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("D:\\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資訊"); Button2 = new JButton("2:查詢最大年齡與最小年齡人員資訊"); 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("查詢不到資訊"); e.printStackTrace(); } catch (IOException e) { System.out.println("資訊讀取有誤"); 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; } } Main1View Code
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"; } } PersonView Code
練習3:採用GUI介面設計以下程式
8.編寫一個計算器類,可以完成加、減、乘、除的操作
9.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式,由計算機隨機產生10道加減乘除練習題,學生輸入答案,由程式檢查答案是否正確,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;
10.將程式中測試練習題及學生答題結果輸出到檔案,檔名為test.txt。
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("第四組"); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); frame.setVisible(true); }); } } NewView Code
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("讀出檔案"); 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(); } } } DemoView Code
總結:一學期的JAVA課程即將結束,通過這一學期的學習,可以說是受益匪淺,很感謝老師和助教的幫助,在你們的帶領下我們對JAVA這麼課的有了全新的認識和理解,然後通過一學期的課程學習,也使我們在未來就業方面有了更好的選擇,在今後我也會繼續JAVA的相關學習,使我能更好的掌握這門語言。