實驗十五 ?GUI編程練習與應用程序部署

實驗時間 2018-12-6

1、實驗目的與要求

(1) 掌握Java應用程序的打包操作；

(2) 了解應用程序存儲配置信息的兩種方法；

(3) 掌握基于JNLP協議的java Web Start應用程序的發布方法；

(5) 掌握Java GUI 編程技術。

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2、實驗內容和步驟

實驗1： 導入第13章示例程序，測試程序并進行代碼注釋。

測試程序1

l? 在elipse IDE中調試運行教材585頁程序13-1，結合程序運行結果理解程序；

l? 將所生成的JAR文件移到另外一個不同的目錄中，再運行該歸檔文件，以便確認程序是從JAR文件中，而不是從當前目錄中讀取的資源。

l? 掌握創建JAR文件的方法；

package resource;import java.awt.*; import java.io.*; import java.net.*; import java.util.*; import javax.swing.*; public class ResourceTest {public static void main(String[] args){EventQueue.invokeLater(() -> {JFrame frame = new ResourceTestFrame();frame.setTitle("ResourceTest");frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);frame.setVisible(true);});} }/*** A frame that loads image and text resources.*/ class ResourceTestFrame extends JFrame {private static final long serialVersionUID = 912586511543965030L; private static final int DEFAULT_WIDTH = 300;private static final int DEFAULT_HEIGHT = 300;public ResourceTestFrame(){setSize(DEFAULT_WIDTH, DEFAULT_HEIGHT);URL aboutURL = getClass().getResource("about.gif");//一個圖標Image img = new ImageIcon(aboutURL).getImage();setIconImage(img);JTextArea textArea = new JTextArea();InputStream stream = getClass().getResourceAsStream("about.txt");//文件try (Scanner in = new Scanner(stream, "UTF-8")){while (in.hasNext())textArea.append(in.nextLine() + "\n");}add(textArea);} }

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測試程序2

l? 在elipse IDE中調試運行教材583頁-584程序13-2，結合程序運行結果理解程序；

l? 了解Properties類中常用的方法；

package properties;import java.awt.EventQueue; import java.awt.event.*; import java.io.*; import java.util.Properties;import javax.swing.*;/*** A program to test properties. The program remembers the frame position, size,* and title.* @version 1.01 2015-06-16* @author Cay Horstmann*/ public class PropertiesTest {public static void main(String[] args){EventQueue.invokeLater(() -> {PropertiesFrame frame = new PropertiesFrame();frame.setVisible(true);});} }/*** A frame that restores position and size from a properties file and updates* the properties upon exit.*/ class PropertiesFrame extends JFrame {private static final int DEFAULT_WIDTH = 300;private static final int DEFAULT_HEIGHT = 200;private File propertiesFile;private Properties settings;public PropertiesFrame(){// 從屬性中獲取位置、大小和標題 String userDir = System.getProperty("user.home");File propertiesDir = new File(userDir, ".corejava");if (!propertiesDir.exists()) propertiesDir.mkdir();propertiesFile = new File(propertiesDir, "program.properties");Properties defaultSettings = new Properties();defaultSettings.setProperty("left", "0");defaultSettings.setProperty("top", "0");defaultSettings.setProperty("width", "" + DEFAULT_WIDTH);defaultSettings.setProperty("height", "" + DEFAULT_HEIGHT);defaultSettings.setProperty("title", "");settings = new Properties(defaultSettings);if (propertiesFile.exists()) try (InputStream in = new FileInputStream(propertiesFile)){ settings.load(in);}catch (IOException ex){ex.printStackTrace();}int left = Integer.parseInt(settings.getProperty("left"));int top = Integer.parseInt(settings.getProperty("top"));int width = Integer.parseInt(settings.getProperty("width"));int height = Integer.parseInt(settings.getProperty("height"));setBounds(left, top, width, height);// 如果沒有標題，詢問用戶String title = settings.getProperty("title");if (title.equals(""))title = JOptionPane.showInputDialog("Please supply a frame title:");if (title == null) title = "";setTitle(title);addWindowListener(new WindowAdapter(){public void windowClosing(WindowEvent event){settings.setProperty("left", "" + getX());settings.setProperty("top", "" + getY());settings.setProperty("width", "" + getWidth());settings.setProperty("height", "" + getHeight());settings.setProperty("title", getTitle());try (OutputStream out = new FileOutputStream(propertiesFile)){settings.store(out, "Program Properties");}catch (IOException ex){ex.printStackTrace();}System.exit(0);}});} }

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測試程序3

l? 在elipse IDE中調試運行教材593頁-594程序13-3，結合程序運行結果理解程序；

l? 了解Preferences類中常用的方法；

package preferences;import java.awt.*; import java.io.*; import java.util.prefs.*;import javax.swing.*; import javax.swing.filechooser.*;/*** A program to test preference settings. The program remembers the frame* position, size, and title.* @version 1.03 2015-06-12* @author Cay Horstmann*/ public class PreferencesTest {public static void main(String[] args){EventQueue.invokeLater(() -> {PreferencesFrame frame = new PreferencesFrame();frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);frame.setVisible(true);});} }/*** A frame that restores position and size from user preferences and updates the* preferences upon exit.*/ class PreferencesFrame extends JFrame {private static final int DEFAULT_WIDTH = 300;private static final int DEFAULT_HEIGHT = 200;private Preferences root = Preferences.userRoot();private Preferences node = root.node("/com/horstmann/corejava");public PreferencesFrame(){// 從首選項獲取位置、大小和標題int left = node.getInt("left", 0);int top = node.getInt("top", 0);int width = node.getInt("width", DEFAULT_WIDTH);int height = node.getInt("height", DEFAULT_HEIGHT);setBounds(left, top, width, height);// 如果沒有標題，詢問用戶 String title = node.get("title", "");if (title.equals(""))title = JOptionPane.showInputDialog("Please supply a frame title:");if (title == null) title = "";setTitle(title);// 設置顯示XML文件的文件選擇器final JFileChooser chooser = new JFileChooser();chooser.setCurrentDirectory(new File("."));chooser.setFileFilter(new FileNameExtensionFilter("XML files", "xml"));// 設置菜單 JMenuBar menuBar = new JMenuBar();setJMenuBar(menuBar);JMenu menu = new JMenu("File");menuBar.add(menu);JMenuItem exportItem = new JMenuItem("Export preferences");menu.add(exportItem);exportItem.addActionListener(event -> {if (chooser.showSaveDialog(PreferencesFrame.this) == JFileChooser.APPROVE_OPTION){try{savePreferences();OutputStream out = new FileOutputStream(chooser.getSelectedFile());node.exportSubtree(out);out.close();}catch (Exception e){e.printStackTrace();}}});JMenuItem importItem = new JMenuItem("Import preferences");menu.add(importItem);importItem.addActionListener(event -> {if (chooser.showOpenDialog(PreferencesFrame.this) == JFileChooser.APPROVE_OPTION){try{InputStream in = new FileInputStream(chooser.getSelectedFile());Preferences.importPreferences(in);in.close();}catch (Exception e){e.printStackTrace();}}});JMenuItem exitItem = new JMenuItem("Exit");menu.add(exitItem);exitItem.addActionListener(event -> {savePreferences();System.exit(0);});}public void savePreferences() {node.putInt("left", getX());node.putInt("top", getY());node.putInt("width", getWidth());node.putInt("height", getHeight());node.put("title", getTitle()); } }

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測試程序4

l? 在elipse IDE中調試運行教材619頁-622程序13-6，結合程序運行結果理解程序；

l? 掌握基于JNLP協議的java Web Start應用程序的發布方法。

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實驗2：GUI綜合編程練習

按實驗十四分組名單，組內討論完成以下編程任務：

練習1：采用GUI界面設計以下程序，并進行部署與發布：

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，查詢匹配的范圍逐漸縮小。

字典排序：

年齡最大最小：

找老鄉：

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同齡：

身份證號：

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package Test;import java.io.BufferedReader; import java.io.File; import java.io.FileInputStream; import java.io.InputStreamReader; import java.io.FileNotFoundException; import java.io.IOException; import java.util.ArrayList; import java.util.Arrays; import java.util.Collections; import java.util.Scanner; import java.awt.*; import javax.swing.*; import java.awt.event.*;public class Main extends JFrame {private static ArrayList<Student> studentlist;private static ArrayList<Student> list;private JPanel panel;private JPanel buttonPanel;private static final int DEFAULT_WITH = 800;private static final int DEFAULT_HEIGHT = 500;public Main() {studentlist = new ArrayList<>();Scanner scanner = new Scanner(System.in);File file = new File("F:\\身份證號.txt");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 number = linescanner.next();String sex = linescanner.next();String age = linescanner.next();String province =linescanner.nextLine();Student student = new Student();student.setName(name);student.setnumber(number);student.setsex(sex);int a = Integer.parseInt(age);student.setage(a);student.setprovince(province);studentlist.add(student);}} catch (FileNotFoundException e) {System.out.println("學生信息文件找不到");e.printStackTrace();} catch (IOException e) {System.out.println("學生信息文件讀取錯誤");e.printStackTrace();}panel = new JPanel();panel.setLayout(new BorderLayout());JTextArea jt = new JTextArea();panel.add(jt);add(panel, BorderLayout.NORTH);buttonPanel = new JPanel();buttonPanel.setLayout(new GridLayout(1, 7));JButton jButton = new JButton("字典排序");JButton jButton1 = new JButton("年齡最大和年齡最小");JLabel lab = new JLabel("猜猜你的老鄉");JTextField jt1 = new JTextField();JLabel lab1 = new JLabel("找找同齡人（年齡相近）：");JTextField jt2 = new JTextField();JLabel lab2 = new JLabel("輸入你的身份證號碼：");JTextField jt3 = new JTextField();JButton jButton2 = new JButton("退出");jButton.setBounds(110, 90, 60, 30);jButton1.setBounds(110, 90, 60, 30);jt1.setBounds(110, 90, 60, 30);jt2.setBounds(110, 90, 60, 30);jt3.setBounds(110, 90, 60, 30);jButton2.setBounds(110, 90, 60, 30);jButton.addActionListener(new ActionListener() {public void actionPerformed(ActionEvent e) {Collections.sort(studentlist);jt.setText(studentlist.toString());}});jButton1.addActionListener(new ActionListener() {public void actionPerformed(ActionEvent e) {int max = 0, min = 100;int j, k1 = 0, k2 = 0;for (int i = 1; i < studentlist.size(); i++) {j = studentlist.get(i).getage();if (j > max) {max = j;k1 = i;}if (j < min) {min = j;k2 = i;}}jt.setText("年齡最大：" + studentlist.get(k1) + "年齡最小：" + studentlist.get(k2));}});jButton2.addActionListener(new ActionListener() {public void actionPerformed(ActionEvent e) {dispose();System.exit(0);}});jt1.addActionListener(new ActionListener() {public void actionPerformed(ActionEvent e) {String find = jt1.getText();String text="";String place = find.substring(0, 3);for (int i = 0; i < studentlist.size(); i++) {if (studentlist.get(i).getprovince().substring(1, 4).equals(place)) {text+="\n"+studentlist.get(i);jt.setText("老鄉：" + text);}}}});jt2.addActionListener(new ActionListener() {public void actionPerformed(ActionEvent e) {String yourage = jt2.getText();int a = Integer.parseInt(yourage);int near = agenear(a);int value = a - studentlist.get(near).getage();jt.setText("年齡相近：" + studentlist.get(near));}});jt3.addActionListener(new ActionListener() {public void actionPerformed(ActionEvent e) {list = new ArrayList<>();Collections.sort(studentlist);String key = jt3.getText();for (int i = 1; i < studentlist.size(); i++) {if (studentlist.get(i).getnumber().contains(key)) { list.add(studentlist.get(i)); jt.setText("emmm！你可能是：\n" + list);} }}});buttonPanel.add(jButton);buttonPanel.add(jButton1);buttonPanel.add(lab);buttonPanel.add(jt1);buttonPanel.add(lab1);buttonPanel.add(jt2);buttonPanel.add(lab2);buttonPanel.add(jt3);buttonPanel.add(jButton2);add(buttonPanel, BorderLayout.SOUTH);setSize(DEFAULT_WITH, DEFAULT_HEIGHT);}public static int agenear(int age) { int j=0,min=53,value=0,k=0;for (int i = 0; i < studentlist.size(); i++){value=studentlist.get(i).getage()-age;if(value<0) value=-value; if (value<min) {min=value;k=i;} } return k; }} package Test;import java.awt.*; import javax.swing.*;import c.v;public class ButtonTest {public static void main(String[] args) {EventQueue.invokeLater(() -> {JFrame frame = new Main();frame.setTitle("身份證");frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);frame.setVisible(true);});} } package Test;public class Student implements Comparable<Student> {private String name;private String number ;private String sex ;private int age;private String province;public String getName() {return name;}public void setName(String name) {this.name = name;}public String getnumber() {return number;}public void setnumber(String number) {this.number = number;}public String getsex() {return sex ;}public void setsex(String sex ) {this.sex =sex ;}public int getage() {return age;}public void setage(int age) {// int a = Integer.parseInt(age);this.age= age;}public String getprovince() {return province;}public void setprovince(String province) {this.province=province ;}public int compareTo(Student o) {return this.name.compareTo(o.getName());}public String toString() {return name+"\t"+sex+"\t"+age+"\t"+number+"\t"+province+"\n";} }

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練習2：采用GUI界面設計以下程序，并進行部署與發布

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道題測試結束后給出測試總分；

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。

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package c;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 D 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 D() {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("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");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<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++;}}} private class Action2 implements ActionListener{public void actionPerformed(ActionEvent event){try {out = new PrintWriter("text.txt");} catch (FileNotFoundException e) {e.printStackTrace();}for(int counter=0;counter<10;counter++){out.println(c[counter]+c1[counter]);}out.println("成績"+sum);out.close();}} } package c;import java.awt.Dimension; import java.awt.EventQueue; import java.awt.Toolkit;import javax.swing.JFrame;public class N {public static void main (String args[]){Toolkit t=Toolkit.getDefaultToolkit();Dimension s=t.getScreenSize(); EventQueue.invokeLater(() -> {JFrame frame = new D();frame.setBounds(0, 0,(int)s.getWidth()/2,(int)s.getHeight()/2);frame.setTitle("大師");frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);frame.setVisible(true);}); }}

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?總結：這個周作業雖然多，沒有完成，但是還是學到不少知識：知道了Java應用程序的打包操作；?了解了應用程序存儲配置信息的兩種方法；?學到了基于JNLP協議的java Web Start應用程序的發布方法；?簡單的可以運用Java GUI 編程技術。

?盡力了，真的沒時間了。

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轉載于:https://www.cnblogs.com/xiaolangoxiaolang/p/10089964.html

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