实验十五 GUI编程练习与应用程序部署
实验时间 2018-12-6
1、实验目的与要求
(1) 掌握Java应用程序的打包操作；
(2) 了解应用程序存储配置信息的两种方法；
(3) 掌握基于JNLP协议的java Web Start应用程序的发布方法；
(5) 掌握Java GUI 编程技术。
2、实验内容和步骤
实验1： 导入第13章示例程序，测试程序并进行代码注释。
测试程序1
l 在elipse IDE中调试运行教材585页程序13-1，结合程序运行结果理解程序；
l 将所生成的JAR文件移到另外一个不同的目录中，再运行该归档文件，以便确认程序是从JAR文件中，而不是从当前目录中读取的资源。
l 掌握创建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");//一个图标 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); }}
测试程序2
l 在elipse IDE中调试运行教材583页-584程序13-2，结合程序运行结果理解程序；
l 了解Properties类中常用的方法；
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() { // 从属性中获取位置、大小和标题 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); // 如果没有标题，询问用户 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); } }); }}
测试程序3
l 在elipse IDE中调试运行教材593页-594程序13-3，结合程序运行结果理解程序；
l 了解Preferences类中常用的方法；
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() { // 从首选项获取位置、大小和标题 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); // 如果没有标题，询问用户 String title = node.get("title", ""); if (title.equals("")) title = JOptionPane.showInputDialog("Please supply a frame title:"); if (title == null) title = ""; setTitle(title); // 设置显示XML文件的文件选择器 final JFileChooser chooser = new JFileChooser(); chooser.setCurrentDirectory(new File(".")); chooser.setFileFilter(new FileNameExtensionFilter("XML files", "xml")); // 设置菜单 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()); }} 
测试程序4
l 在elipse IDE中调试运行教材619页-622程序13-6，结合程序运行结果理解程序；
l 掌握基于JNLP协议的java Web Start应用程序的发布方法。
实验2：GUI综合编程练习
按实验十四分组名单，组内讨论完成以下编程任务：
练习1：采用GUI界面设计以下程序，并进行部署与发布：
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。
字典排序：
年龄最大最小：
找老乡：
同龄：
身份证号：
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 studentlist; private static ArrayList 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:\\身份证号.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("学生信息文件找不到"); e.printStackTrace(); } catch (IOException e) { System.out.println("学生信息文件读取错误"); 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("年龄最大和年龄最小"); JLabel lab = new JLabel("猜猜你的老乡"); JTextField jt1 = new JTextField(); JLabel lab1 = new JLabel("找找同龄人（年龄相近）："); JTextField jt2 = new JTextField(); JLabel lab2 = new JLabel("输入你的身份证号码："); 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("年龄最大：" + studentlist.get(k1) + "年龄最小：" + 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("老乡：" + 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("年龄相近：" + 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 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("身份证"); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); frame.setVisible(true); }); }} package Test;public class Student implements Comparable{ 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"; } }
练习2：采用GUI界面设计以下程序，并进行部署与发布
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。
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("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 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("大师"); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); frame.setVisible(true); }); } }
总结：这个周作业虽然多，没有完成，但是还是学到不少知识：知道了Java应用程序的打包操作； 了解了应用程序存储配置信息的两种方法； 学到了基于JNLP协议的java Web Start应用程序的发布方法； 简单的可以运用Java GUI 编程技术。
尽力了，真的没时间了。