北华大学开放实验报告实验项目名称: JAVA程序综合设计（数据库设计）所属课程名称: 面对象程序设计——JAVA实验类型: 设计型班级: 信息11—2一、实验目的与要求1.学会基于JDBC的数据库编程技术2.了解服务器端和客户端的类3.学会使用Sever类、GetConnection类、SocketIO和Client类等类的设计。
4.学会运用AWT和Swing组件美化系统用户界面。
二、实验环境XP操作传统、Eclipse开发环境和JDK6.0三、实验原理JDBC（Java Data Base Connectivity,java数据库连接）是一种用于执行SQL语句的Java API，可以为多种关系数据库提供统一访问，它由一组用Java语言编写的类和接口组成。
JDBC提供了一种基准，据此可以构建更高级的工具和接口，使数据库开发人员能够编写数据库应用程序。
AWT(Abstract Windowing Toolkit)，中文译为抽象窗口工具包，是Java 提供的用来建立和设置Java的图形用户界面的基本工具。
AWT由Java中的java.awt包提供，里面包含了许多可用来建立与平台无关的图形用户界面(GUI)的类，这些类又被称为组件(components)。
Swing是由100%纯Java实现的，Swing组件是用Java实现的轻量级（light-weight）组件，没有本地代码，不依赖操作系统的支持，这是它与AWT组件的最大区别。
四、实验内容1、图书管理系统登录程序代码为：import java.awt.Container;import java.awt.FlowLayout;import java.awt.event.ActionEvent;import java.awt.event.ActionListener;import javax.swing.Icon;import javax.swing.ImageIcon;import javax.swing.JApplet;import javax.swing.JButton;import javax.swing.JLabel;import javax.swing.JTextField;@SuppressWarnings("serial")public class t1 extends JApplet implements ActionListener {Container cp=getContentPane();Icon ro=new ImageIcon(getClass().getResource("g1.gif"));JLabel lb0=new JLabel("",ro,JLabel.CENTER);JLabel lb1=new JLabel();JTextField tf1=new JTextField(10);JLabel lb2=new JLabel("密码：",JLabel.CENTER);JTextField tf2=new JTextField(10);JButton bt1=new JButton("登入");JButton bt2=new JButton("重置");String IP=null;public void init(){cp.setLayout(new FlowLayout());cp.add(lb0);cp.add(lb1);lb1.setText("用户名：");cp.add(tf1);cp.add(lb2);cp.add(tf2);cp.add(bt1);bt1.addActionListener(this);cp.add(bt2);bt2.addActionListener(this);}public void actionPerformed(ActionEvent e) {}}运行结果：2、新书订购管理程序代码为：package jihu;import java.awt.EventQueue;import javax.swing.JFrame;import javax.swing.JPanel;import javax.swing.border.EmptyBorder;import java.awt.Font;import javax.swing.JLabel;import javax.swing.GroupLayout;import javax.swing.GroupLayout.Alignment;import java.awt.Color;import java.awt.SystemColor;import ponentPlacement; import javax.swing.JTextField;import javax.swing.JRadioButton;import javax.swing.JButton;import java.awt.event.ActionListener;import java.awt.event.ActionEvent;import javax.swing.border.TitledBorder;import javax.swing.UIManager;import javax.swing.JComboBox;public class t2 extends JFrame{private static final long serialVersionUID = 4180756712362285535L;private JPanel contentPane;private JTextField textField;private JTextField textField_1;private JTextField textField_2;private JTextField textField_3;private JTextField textField_4;private JTextField textField_5;private JTextField textField_6;public static void main(String[] args){EventQueue.invokeLater(new Runnable(){public void run(){try{t2 frame = new t2();frame.setVisible(true);}catch (Exception e){e.printStackTrace();}}});}public t2(){setFont(new Font("华文楷体", Font.BOLD, 16));setTitle("\u65B0\u4E66\u8BA2\u8D2D\u7BA1\u7406");setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);setBounds(100, 100, 627, 410);contentPane = new JPanel();contentPane.setForeground(Color.CYAN);contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));setContentPane(contentPane);JPanel panel = new JPanel();panel.setBorder(newTitledBorder(UIManager.getBorder("TitledBorder.border"),"\u56FE\u4E66\u4FE1\u606F", TitledBorder.LEADING, TitledBorder.TOP, null, new Color(51, 153, 255)));JPanel panel_1 = new JPanel();panel_1.setBorder(new TitledBorder(null,"\u8BA2\u8D2D\u4FE1\u606F", TitledBorder.LEADING, TitledBorder.TOP, null, SystemColor.textHighlight));JButton btnNewButton = new JButton("\u6DFB\u52A0");btnNewButton.setFont(new Font("宋体", Font.BOLD, 12));JButton btnNewButton_1 = new JButton("\u9000\u51FA");btnNewButton_1.addActionListener(new ActionListener(){public void actionPerformed(ActionEvent e) {}});btnNewButton_1.setFont(new Font("宋体", Font.BOLD, 12));GroupLayout gl_contentPane = new GroupLayout(contentPane);gl_contentPane.setHorizontalGroup(gl_contentPane.createParallelGroup(Alignment.LEADING) .addComponent(panel, GroupLayout.DEFAULT_SIZE,601, Short.MAX_VALUE).addComponent(panel_1, GroupLayout.DEFAULT_SIZE, 601, Short.MAX_VALUE).addGroup(gl_contentPane.createSequentialGroup().addGap(211).addComponent(btnNewButton).addGap(33).addComponent(btnNewButton_1).addContainerGap(239, Short.MAX_VALUE)) );gl_contentPane.setVerticalGroup(gl_contentPane.createParallelGroup(Alignment.LEADING) .addGroup(gl_contentPane.createSequentialGroup().addComponent(panel,GroupLayout.PREFERRED_SIZE, 163,GroupLayout.PREFERRED_SIZE).addPreferredGap(ComponentPlacement.RELATED).addComponent(panel_1,GroupLayout.PREFERRED_SIZE, 153,GroupLayout.PREFERRED_SIZE).addPreferredGap(ComponentPlacement.UNRELATED).addGroup(gl_contentPane.createParallelGroup(Alignment.BASELI NE).addComponent(btnNewButton_1).addComponent(btnNewButton)).addContainerGap(GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)));JLabel lblNewLabel_5 = newJLabel("\u8BA2\u8D2D\u65E5\u671F\uFF1A");lblNewLabel_5.setFont(new Font("宋体", Font.BOLD, 12));JLabel lblNewLabel_6 = newJLabel("\u64CD\u4F5C\u5458\uFF1A");lblNewLabel_6.setFont(new Font("宋体", Font.BOLD, 12));JLabel lblNewLabel_7 = new JLabel("\u6298\u6263\uFF1A");lblNewLabel_7.setFont(new Font("宋体", Font.BOLD, 12));JLabel lblNewLabel_8 = newJLabel("\u8BA2\u8D2D\u6570\u91CF\uFF1A");lblNewLabel_8.setFont(new Font("宋体", Font.BOLD, 12));JLabel lblNewLabel_9 = newJLabel("\u662F\u5426\u9A8C\u6536\uFF1A");lblNewLabel_9.setFont(new Font("宋体", Font.BOLD, 12));textField = new JTextField();textField.setColumns(10);textField_1 = new JTextField();textField_1.setBackground(UIManager.getColor("Button.light"));textField_1.setColumns(10);textField_2 = new JTextField();textField_2.setColumns(10);textField_3 = new JTextField();textField_3.setColumns(10);JRadioButton rdbtnNewRadioButton = newJRadioButton("\u662F");rdbtnNewRadioButton.setFont(new Font("宋体", Font.BOLD, 12));rdbtnNewRadioButton.setSelected(true);JRadioButton rdbtnNewRadioButton_1 = newJRadioButton("\u5426");rdbtnNewRadioButton_1.setFont(new Font("宋体", Font.BOLD, 12));GroupLayout gl_panel_1 = new GroupLayout(panel_1);gl_panel_1.setHorizontalGroup(gl_panel_1.createParallelGroup(Alignment.LEADING).addGroup(gl_panel_1.createSequentialGroup() .addGroup(gl_panel_1.createParallelGroup(Alignment.LEADING).addComponent(lblNewLabel_5).addComponent(lblNewLabel_6).addComponent(lblNewLabel_7)).addGap(101).addGroup(gl_panel_1.createParallelGroup(Alignment.LEADING, false).addComponent(textField_2).addComponent(textField, Alignment.TRAILING).addComponent(textField_1,Alignment.TRAILING, GroupLayout.DEFAULT_SIZE, 131,Short.MAX_VALUE)).addPreferredGap(ComponentPlacement.RELATED) .addGroup(gl_panel_1.createParallelGroup(Alignment.LEADING).addComponent(lblNewLabel_9).addComponent(lblNewLabel_8)).addGap(47).addGroup(gl_panel_1.createParallelGroup(Alignment.LEADING).addGroup(gl_panel_1.createSequentialGroup().addComponent(rdbtnNewRadioButton).addGap(18).addComponent(rdbtnNewRadioButton_1).addContainerGap()).addComponent(textField_3,GroupLayout.DEFAULT_SIZE, 176, Short.MAX_VALUE))));gl_panel_1.setVerticalGroup(gl_panel_1.createParallelGroup(Alignment.LEADING).addGroup(gl_panel_1.createSequentialGroup().addGap(21).addGroup(gl_panel_1.createParallelGroup(Alignment.BASELINE).addComponent(lblNewLabel_5).addComponent(lblNewLabel_8).addComponent(textField,GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE).addComponent(textField_3,GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE)).addPreferredGap(ComponentPlacement.RELATED, 13, Short.MAX_VALUE).addGroup(gl_panel_1.createParallelGroup(Alignment.BASELINE).addComponent(lblNewLabel_6).addComponent(lblNewLabel_9).addComponent(textField_1, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE).addComponent(rdbtnNewRadioButton).addComponent(rdbtnNewRadioButton_1)).addGap(18).addGroup(gl_panel_1.createParallelGroup(Alignment.BASELINE).addComponent(lblNewLabel_7).addComponent(textField_2, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE)).addContainerGap()));panel_1.setLayout(gl_panel_1);JLabel lblNewLabel = newJLabel("\u4E66\u7C4D\u7F16\u53F7\uFF1A");lblNewLabel.setFont(new Font("宋体", Font.BOLD, 12));JLabel lblNewLabel_1 = newJLabel("\u56FE\u4E66\u7C7B\u522B\uFF1A");lblNewLabel_1.setFont(new Font("宋体", Font.BOLD, 12));JLabel lblNewLabel_2 = newJLabel("\u56FE\u4E66\u4EF7\u683C\uFF1A");lblNewLabel_2.setFont(new Font("宋体", Font.BOLD, 12));JLabel lblNewLabel_3 = newJLabel("\u56FE\u4E66\u540D\u79F0\uFF1A");lblNewLabel_3.setFont(new Font("宋体", Font.BOLD, 12));JLabel lblNewLabel_4 = newJLabel("\u51FA\u7248\u793E\uFF1A");lblNewLabel_4.setFont(new Font("宋体", Font.BOLD, 12));textField_4 = new JTextField();textField_4.setColumns(10);textField_5 = new JTextField();textField_5.setColumns(10);textField_6 = new JTextField();textField_6.setColumns(10);JComboBox comboBox = new JComboBox();JComboBox comboBox_1 = new JComboBox();GroupLayout gl_panel = new GroupLayout(panel);gl_panel.setHorizontalGroup(gl_panel.createParallelGroup(Alignment.LEADING).addGroup(gl_panel.createSequentialGroup() .addGroup(gl_panel.createParallelGroup(Alignment.LEADING).addComponent(lblNewLabel).addComponent(lblNewLabel_1).addComponent(lblNewLabel_2)).addGap(102).addGroup(gl_panel.createParallelGroup(Alignment.TRAILING).addGroup(gl_panel.createSequentialGroup().addGroup(gl_panel.createParallelGroup(Alignment.TRAILING, false).addComponent(comboBox, 0, GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE).addComponent(textField_4, GroupLayout.DEFAULT_SIZE, 125, Short.MAX_VALUE)).addPreferredGap(ComponentPlacement.UNRELATED).addGroup(gl_panel.createParallelGroup(Alignment.LEADING).addComponent(lblNewLabel_3).addComponent(lblNewLabel_4)).addPreferredGap(ComponentPlacement.RELATED, 69,Short.MAX_VALUE).addGroup(gl_panel.createParallelGroup(Alignment.LEADING, false).addComponent(comboBox_1, 0, GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE).addComponent(textField_5, GroupLayout.DEFAULT_SIZE, 143, Short.MAX_VALUE)).addContainerGap()).addGroup(gl_panel.createSequentialGroup().addComponent(textField_6, GroupLayout.DEFAULT_SIZE, 125, Short.MAX_VALUE).addGap(297)))));gl_panel.setVerticalGroup(gl_panel.createParallelGroup(Alignment.LEADING).addGroup(gl_panel.createSequentialGroup().addContainerGap().addGroup(gl_panel.createParallelGroup(Alignment.BASELINE).addComponent(lblNewLabel).addComponent(lblNewLabel_3).addComponent(textField_4,GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE).addComponent(textField_5, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE)).addGroup(gl_panel.createParallelGroup(Alignment.LEADING).addGroup(gl_panel.createSequentialGroup().addGap(30).addGroup(gl_panel.createParallelGroup(Alignment.BASELINE).addComponent(lblNewLabel_1).addComponent(lblNewLabel_4).addComponent(comboBox, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE)).addGap(32).addGroup(gl_panel.createParallelGroup(Alignment.BASELINE).addComponent(lblNewLabel_2).addComponent(textField_6, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE))).addGroup(gl_panel.createSequentialGroup().addGap(18).addComponent(comboBox_1, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE))).addContainerGap(GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)));panel.setLayout(gl_panel);contentPane.setLayout(gl_contentPane);}}运行结果为：3、图书验收程序代码为：import java.awt.EventQueue;import javax.swing.JFrame;import javax.swing.JPanel;import javax.swing.border.EmptyBorder;import javax.swing.GroupLayout;import javax.swing.GroupLayout.Alignment;import javax.swing.JTable;import java.awt.Font;import ponentPlacement; import javax.swing.JLabel;import javax.swing.JTextField;import javax.swing.JButton;import javax.swing.JRadioButton;import javax.swing.table.DefaultTableModel; import javax.swing.border.LineBorder; import java.awt.Color;public class t3 extends JFrame{private static final long serialVersionUID = -7319664947163365781L;private JPanel contentPane;private JTable table;private JLabel lblNewLabel;private JLabel lblNewLabel_1;private JLabel lblNewLabel_2;private JLabel lblNewLabel_3;private JLabel lblNewLabel_4;private JLabel lblNewLabel_5;private JLabel lblNewLabel_6;private JLabel lblNewLabel_7;private JLabel lblNewLabel_8;private JTextField textField;private JTextField textField_1;private JTextField textField_2;private JTextField textField_3;private JTextField textField_4;private JTextField textField_5;private JTextField textField_6;private JTextField textField_7;private JButton btnNewButton;private JButton btnNewButton_1;private JRadioButton rdbtnNewRadioButton; private JRadioButton rdbtnNewRadioButton_1; public static void main(String[] args){EventQueue.invokeLater(new Runnable(){public void run(){try{t3 frame = new t3();frame.setVisible(true);}catch (Exception e) {e.printStackTrace();}}});}public t3(){setFont(new Font("宋体", Font.BOLD, 18));setTitle("\u56FE\u4E66\u9A8C\u6536");setAlwaysOnTop(true);setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);setBounds(100, 100, 632, 396);contentPane = new JPanel();contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));setContentPane(contentPane);table = new JTable();table.setBorder(new LineBorder(new Color(0, 0, 0)));table.setModel(new DefaultTableModel(new Object[][]{{null, null, null, null, null, null, null, null, null},{null, null, null, null, null, null, null, null, null},{null, null, null, null, null, null, null, null, null},{null, null, null, null, null, null, null, null, null},{null, null, null, null, null, null, null, null, null},{null, null, null, null, null, null, null, null, null},{null, null, null, null, null, null, null, null, null},{null, null, null, null, null, null, null, null, null},{null, null, null, null, null, null, null, null, null},},new String[]{"New column", "New column", "New column", "New column", "New column", "New column", "New column", "New column", "New column"}));table.setColumnSelectionAllowed(true);lblNewLabel = newJLabel("\u8BA2\u8D2D\u65E5\u671F\uFF1A");lblNewLabel.setFont(new Font("宋体", Font.BOLD, 12));lblNewLabel_1 = newJLabel("\u8BA2\u8D2D\u6570\u91CF\uFF1A");lblNewLabel_1.setFont(new Font("宋体", Font.BOLD, 12));lblNewLabel_2 = newJLabel("\u56FE\u4E66\u7C7B\u522B\uFF1A");lblNewLabel_2.setFont(new Font("宋体", Font.BOLD, 12));lblNewLabel_3 = newJLabel("\u662F\u5426\u9A8C\u6536\uFF1A");lblNewLabel_3.setFont(new Font("宋体", Font.BOLD, 12));lblNewLabel_4 = newJLabel("\u8BA2\u8D2D\u4EF7\u683C\uFF1A");lblNewLabel_4.setFont(new Font("宋体", Font.BOLD, 12));lblNewLabel_5 = newJLabel("\u4E66\u7C4D\u7F16\u53F7\uFF1A");lblNewLabel_5.setFont(new Font("宋体", Font.BOLD, 12));lblNewLabel_6 = new JLabel("\u64CD\u4F5C\u5458\uFF1A");lblNewLabel_6.setFont(new Font("宋体", Font.BOLD, 12));lblNewLabel_7 = newJLabel("\u56FE\u4E66\u539F\u4EF7\u683C\uFF1A");lblNewLabel_7.setFont(new Font("宋体", Font.BOLD, 12));lblNewLabel_8 = new JLabel("\u6298\u6263\uFF1A");lblNewLabel_8.setFont(new Font("宋体", Font.BOLD, 12));textField = new JTextField();textField.setColumns(10);textField_1 = new JTextField();textField_1.setColumns(10);textField_2 = new JTextField();textField_2.setColumns(10);textField_3 = new JTextField();textField_3.setColumns(10);textField_4 = new JTextField();textField_4.setColumns(10);textField_5 = new JTextField();textField_5.setColumns(10);textField_6 = new JTextField();textField_6.setColumns(10);textField_7 = new JTextField();textField_7.setColumns(10);btnNewButton = new JButton("\u9A8C\u6536"); btnNewButton.setFont(new Font("宋体", Font.BOLD, 12)); btnNewButton_1 = new JButton("\u9000\u51FA"); btnNewButton_1.setFont(new Font("宋体", Font.BOLD, 12));rdbtnNewRadioButton = new JRadioButton("\u662F"); rdbtnNewRadioButton.setSelected(true); rdbtnNewRadioButton_1 = new JRadioButton("\u5426"); GroupLayout gl_contentPane = new GroupLayout(contentPane); gl_contentPane.setHorizontalGroup(gl_contentPane.createParallelGroup(Alignment.LEADING).addComponent(table, GroupLayout.DEFAULT_SIZE, 558, Short.MAX_VALUE).addGroup(gl_contentPane.createSequentialGroup().addGap(80).addGroup(gl_contentPane.createParallelGroup(Alignment.LEADIN G).addComponent(lblNewLabel).addComponent(lblNewLabel_1).addComponent(lblNewLabel_2).addComponent(lblNewLabel_3).addComponent(lblNewLabel_4)).addGap(38).addGroup(gl_contentPane.createParallelGroup(Alignment.LEADIN G).addGroup(gl_contentPane.createParallelGroup(Alignment.LEADIN G, false).addGroup(gl_contentPane.createParallelGroup(Alignment.TRAILIN G).addComponent(textField, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE,.addComponent(textField_1, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE).addComponent(textField_2, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE)).addGroup(Alignment.TRAILING,gl_contentPane.createSequentialGroup().addGroup(gl_contentPane.createParallelGroup(Alignment.TRAILIN G).addComponent(btnNewButton).addGroup(gl_contentPane.createSequentialGroup().addComponent(rdbtnNewRadioButton).addPreferredGap(ComponentPlacement.RELATED, GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE).addComponent(rdbtnNewRadioButton_1,GroupLayout.PREFERRED_SIZE, 44,.addPreferredGap(ComponentPlacement.RELATED))).addComponent(textField_3,GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE)).addGroup(gl_contentPane.createParallelGroup(Alignment.LEADIN G).addGroup(gl_contentPane.createSequentialGroup().addGap(64).addGroup(gl_contentPane.createParallelGroup(Alignment.LEADIN G).addComponent(lblNewLabel_5).addComponent(lblNewLabel_6).addComponent(lblNewLabel_7).addComponent(lblNewLabel_8)).addPreferredGap(ComponentPlacement.RELATED).addGroup(gl_contentPane.createParallelGroup(Alignment.LEADING).addComponent(textField_7, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE).addComponent(textField_6, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE).addComponent(textField_5, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE).addComponent(textField_4, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE))).addGroup(gl_contentPane.createSequentialGroup().addGap(22).addComponent(btnNewButton_1))).addContainerGap(82, Short.MAX_VALUE)) );gl_contentPane.setVerticalGroup(gl_contentPane.createParallelGroup(Alignment.LEADING) .addGroup(gl_contentPane.createSequentialGroup().addComponent(table,GroupLayout.PREFERRED_SIZE, 100,GroupLayout.PREFERRED_SIZE).addGap(42).addGroup(gl_contentPane.createParallelGroup(Alignment.BASELI NE).addComponent(lblNewLabel).addComponent(lblNewLabel_5).addComponent(textField,GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE).addComponent(textField_4,GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE)).addPreferredGap(ComponentPlacement.RELATED).addGroup(gl_contentPane.createParallelGroup(Alignment.BASELI NE).addComponent(lblNewLabel_1).addComponent(lblNewLabel_6).addComponent(textField_1,GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE).addComponent(textField_5,GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE)).addPreferredGap(ComponentPlacement.RELATED).addGroup(gl_contentPane.createParallelGroup(Alignment.BASELI NE).addComponent(lblNewLabel_2).addComponent(lblNewLabel_7).addComponent(textField_2,GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE).addComponent(textField_6,GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE)).addPreferredGap(ComponentPlacement.RELATED) .addGroup(gl_contentPane.createParallelGroup(Alignment.BASELI NE).addComponent(lblNewLabel_3).addComponent(lblNewLabel_8).addComponent(textField_7,GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE).addComponent(rdbtnNewRadioButton_1).addComponent(rdbtnNewRadioButton)).addPreferredGap(ComponentPlacement.RELATED) .addGroup(gl_contentPane.createParallelGroup(Alignment.BASELI NE).addComponent(lblNewLabel_4).addComponent(textField_3,GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE)).addGap(18).addGroup(gl_contentPane.createParallelGroup(Alignment.BASELI NE).addComponent(btnNewButton).addComponent(btnNewButton_1)).addContainerGap(36, Short.MAX_VALUE)) );contentPane.setLayout(gl_contentPane);}}运行结果为：4、图书信息添加程序代码为：import java.awt.EventQueue;import java.awt.Font;import java.awt.SystemColor;import javax.swing.GroupLayout;import javax.swing.GroupLayout.Alignment; import javax.swing.JButton;import javax.swing.JComboBox;import javax.swing.JFrame;import javax.swing.JLabel;import javax.swing.JPanel;import javax.swing.JTextField;import ponentPlacement; import javax.swing.UIManager;import javax.swing.border.EmptyBorder;import java.awt.event.ActionListener;import java.awt.event.ActionEvent;import java.awt.GridBagLayout;import java.awt.GridBagConstraints;import java.awt.Insets;public class t4 extends JFrame{private static final long serialVersionUID = 4961483621957067486L;private JPanel contentPane;private JTextField textField;private JTextField textField_1;private JTextField textField_3;private JTextField textField_2;private JTextField textField_4;private JTextField textField_5;public static void main(String[] args){EventQueue.invokeLater(new Runnable(){public void run(){try{t4 frame = new t4();frame.setVisible(true);}catch (Exception e){e.printStackTrace();}}});}public t4(){setFont(new Font("宋体", Font.BOLD, 14));setTitle("\u56FE\u4E66\u4FE1\u606F\u6DFB\u52A0");setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);setBounds(100, 100, 512, 387);contentPane = new JPanel();contentPane.setForeground(UIManager.getColor("InternalFrame.ac tiveTitleGradient"));contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));setContentPane(contentPane);JLabel lblNewLabel_1 = newJLabel("\u56FE\u4E66\u7F16\u53F7\uFF1A");lblNewLabel_1.setFont(new Font("宋体", Font.BOLD, 12));JLabel lblNewLabel_2 = new JLabel("\u4E66\u540D\uFF1A");lblNewLabel_2.setFont(new Font("宋体", Font.BOLD, 12));JLabel lblNewLabel_3 = newJLabel("\u51FA\u7248\u793E\uFF1A");lblNewLabel_3.setFont(new Font("宋体", Font.BOLD, 12));JLabel lblNewLabel_4 = newJLabel("\u51FA\u7248\u65E5\u671F\uFF1A");lblNewLabel_4.setFont(new Font("宋体", Font.BOLD, 12));JLabel lblNewLabel_5 = new JLabel("\u7C7B\u522B\uFF1A");lblNewLabel_5.setFont(new Font("宋体", Font.BOLD, 12));JLabel lblNewLabel_6 = new JLabel("\u4F5C\u8005\uFF1A");lblNewLabel_6.setFont(new Font("宋体", Font.BOLD, 12));JLabel lblNewLabel_7 = new JLabel("\u8BD1\u8005\uFF1A");lblNewLabel_7.setFont(new Font("宋体", Font.BOLD, 12));JLabel lblNewLabel_8 = new JLabel("\u5355\u4EF7\uFF1A");lblNewLabel_8.setFont(new Font("宋体", Font.BOLD, 12));textField = new JTextField();textField.setColumns(10);textField_1 = new JTextField();textField_1.setColumns(10);textField_3 = new JTextField();textField_3.setColumns(10);textField_2 = new JTextField();textField_2.setColumns(10);textField_4 = new JTextField();textField_4.setColumns(10);textField_5 = new JTextField();textField_5.setColumns(10);JComboBox comboBox = new JComboBox();JComboBox comboBox_1 = new JComboBox();JLabel lblNewLabel_9 = new JLabel("");JLabel lblNewLabel_10 = new JLabel("");JButton btnNewButton = new JButton("\u6DFB\u52A0"); btnNewButton.addActionListener(new ActionListener(){public void actionPerformed(ActionEvent arg0) {}});btnNewButton.setFont(new Font("宋体", Font.BOLD, 12)); JButton btnNewButton_1 = new JButton("\u5173\u95ED");btnNewButton_1.setFont(new Font("宋体", Font.BOLD, 12));JPanel panel = new JPanel();panel.setBackground(SystemColor.activeCaption);GroupLayout gl_contentPane = new GroupLayout(contentPane);gl_contentPane.setHorizontalGroup(gl_contentPane.createParallelGroup(Alignment.TRAILING) .addGroup(gl_contentPane.createSequentialGroup().addContainerGap().addGroup(gl_contentPane.createParallelGroup(Alignment.LEADIN G).addComponent(lblNewLabel_1).addComponent(lblNewLabel_2).addComponent(lblNewLabel_3).addComponent(lblNewLabel_4)).addGap(30).addGroup(gl_contentPane.createParallelGroup(Alignment.TRAILIN G, false).addComponent(comboBox, 0, GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE).addComponent(textField, 79, 79,Short.MAX_VALUE).addComponent(textField_1, 79, 79,Short.MAX_VALUE).addComponent(textField_3, 79, 79,Short.MAX_VALUE).addComponent(lblNewLabel_9,Alignment.LEADING)).addPreferredGap(ComponentPlacement.RELATED, 20, Short.MAX_VALUE).addGroup(gl_contentPane.createParallelGroup(Alignment.LEADIN G).addComponent(lblNewLabel_6).addComponent(lblNewLabel_5).addComponent(lblNewLabel_7).addComponent(lblNewLabel_8)).addGap(55).addGroup(gl_contentPane.createParallelGroup(Alignment.LEADIN G).addComponent(textField_5, 188, 188, 188).addComponent(textField_4, 188, 188, 188).addComponent(lblNewLabel_10).addComponent(comboBox_1,。