Java图形用户界面.doc

实验六Java图形用户界面1实验目的（1）掌握图形用户界面基本组件。（2）了解如何使用布局管理器对组件进行管理。（3）掌握Java事件处理机制。2实验内容实验题1 编写一个模拟计算器的程序，使用面板和网格布局，添加一个文本框，10个数字按钮(0-9)，4个加减乘除按钮，一个等号按钮，一个清除按钮，要求将计算公式和结果显示在文本框中。基本要求 编写完整程序实验题2 编写一个程序，有一个窗口，该窗口为BorderLayout布局。窗口的中心添加一个Panel容器：pCenter，pCenter的布局是7行7列的GridLayout布局，pCenter的中放置49个标签，用来显示日历。窗口北面添加一个Panel容器pNorth，其布局是FlowLayout布局，pNorth放置两个按钮：nextMonth和previousMonth按钮，单击nextMonth,可以显示当前月的下一个月的日历；单击previousMonth按钮，可以显示当前月的上一个月的日历。窗口的南面添加一个Panel容器pSouth，其布局是FlowLayout布局，pSouth中放置一个标签用来显示一些信息。运行结果如图所示。1）、import java.util.*;import javax.swing.*;public class Dateint td;int daysOfMonth;ArrayList list;public Date(int year,int month)int td = 0;int dayOfMonth = 0;for (int i = 1900; i year; i+) if (i % 4 = 0) & (i % 100 != 0) | (i % 400 = 0) td+= 366; else td+=365;for (int m = 1; m = month; m+) if (m = 1 | m = 3 | m = 5 | m = 7| m = 8 | m = 10 | m = 12) dayOfMonth = 31; else if (m = 2) if (year % 4 = 0) & (year % 100 != 0) | (year % 400 = 0) dayOfMonth = 29; else dayOfMonth = 28; else dayOfMonth = 30;if (m month) td+=dayOfMonth;int temp = (td % 7); list = new ArrayList();for (int p = 0; p temp; p+) list.add(0);for (int w = 1; w = dayOfMonth; w+) list.add(w);for(int w = dayOfMonth + 1;w = 41;w+)list.add(0); 2）、import java.awt.*;import java.awt.event.*;import javax.swing.*;import javax.swing.border.*;public class Calendar extends JFrame implements ActionListener private JButton nextMonth;private JButton previousMonth;private JLabel rlabel;int month = 10;int year = 2007;private static JLabel label;public Calendar() init();void init() Container container = this.getContentPane();container.setLayout(new BorderLayout();JPanel pNorth = new JPanel();pNorth.setLayout(new FlowLayout();nextMonth = new JButton(下月);nextMonth.addActionListener(this);previousMonth = new JButton(上月);previousMonth.addActionListener(this);pNorth.add(previousMonth);pNorth.add(nextMonth);container.add(pNorth, BorderLayout.NORTH);JPanel pCenter = new JPanel();pCenter.setLayout(new GridLayout(6, 7);container.add(pCenter, BorderLayout.CENTER);label = new JLabel77;for (int i = 0; i 6; i+) for (int j = 0; j 7; j+) labelij = new JLabel();labelij.setHorizontalAlignment(JLabel.CENTER);if (i = 0) if (j = 6) labelij.setForeground(Color.green);labelij.setBorder(new LineBorder(Color.black);labelij.setBackground(Color.BLUE); else labelij.setForeground(Color.green);labelij.setBorder(new LineBorder(Color.black); labelij.setText(null);pCenter.add(labelij);label00.setText(一);label01.setText(二);label02.setText(三);label03.setText(四);label04.setText(五);label05.setText(六);label06.setText(日);container.add(pCenter, BorderLayout.CENTER);JPanel pSouth = new JPanel();rlabel = new JLabel(日历： + year + 年 + month + 月);pSouth.add(rlabel);container.add(pSouth, BorderLayout.SOUTH);this.setVisible(true);this.setBounds(200, 200, 500, 300);this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);public static void main(String args) new Calendar();Date date = new Date(2007, 10);int k = 0;for (int i = 1; i 6; i+) for (int j = 0; j = 12) year += 1;month = 1; else month += 1;rlabel.setText(日历: + year + 年 + month + 月);Date date = new Date(year, month);int k = 0;for (int i = 1; i 6; i+) for (int j = 0; j 7; j+) int m = date.list.get(k);if (m = 0) labelij.setText(); else labelij.setText( + m);k+;if (e.getActionCommand().equals(上月) if (month = 1) year -= 1;month = 12; else month -= 1;rlabel.setText(日历: + year + 年 + month + 月);Date date = new Date(year, month);int k = 0;for (int i = 1; i 6; i+) for (int j = 0; j 7; j+) int m = date.list.get(k);if (m = 0) labelij.setText(); else labelij.setText( + m);k+;实验题3 实现如图3.9所示的布局方式功能：前两个文本框输入整型数据。第三个文本框存放前两个文本框数据之和。要求如下：第一个文本框的数据是100，200,如果超出该范围弹出对话框提示用户。弹出提示对话框的时刻是光标离开第一个文本框时。代码如下：import java.awt.BorderLayout;import java.awt.EventQueue;import javax.swing.JFrame;import javax.swing.JOptionPane;import javax.swing.JPanel;import javax.swing.border.EmptyBorder;import javax.swing.JTextField;import javax.swing.SwingConstants;import java.awt.event.FocusAdapter;import java.awt.event.FocusEvent;public class qiuhe extends JFrame private JPanel contentPane;private JTextField tf1;private JTextField tf2;private JTextField tf3;/* * Launch the application. */public static void main(String args) EventQueue.invokeLater(new Runnable() public void run() try TF frame = new TF();frame.setVisible(true); catch (Exception e) e.printStackTrace(););/* * Create the frame. */public TF() setTitle(TextFieldTest);setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);setBounds(100, 100, 450, 300);contentPane = new JPanel();contentPane.setToolTipText();contentPane.setBorder(new EmptyBorder(5, 5, 5, 5);contentPane.setLayout(new BorderLayout(0, 0);setContentPane(contentPane);JPanel panel = new JPanel();panel.setToolTipText(1);contentPane.add(panel, BorderLayout.CENTER);panel.setLayout(null);tf1 = new JTextField();tf1.addFocusListener(new FocusAdapter() Overridepublic void focusLost(FocusEvent arg0) int x=Integer.parseInt(tf1.getText();if(x200)JOptionPane.showMessageDialog(null, 输入范围是100,200);tf1.setText(null);Overridepublic void focusGained(FocusEvent e) tf1.setText(null););tf1.setHorizontalAlignment(SwingConstants.CENTER);tf1.setText(Input Integer 1);tf1.setToolTipText();tf1.setBounds(134, 13, 148, 46);panel.add(tf1);tf1.setColumns(10);tf2 = new JTextField();tf2.addFocusListener(new FocusAdapter() Overridepublic void focusGained(FocusEvent e) tf2.setText(null););tf2.setHorizontalAlignment(SwingConstants.CENTER);tf2.setText(Input Integer 2);tf2.setBounds(134, 81, 148, 46);panel.add(tf2);tf2.setColumns(10);tf3 = new JTextField();tf3.addFocusListener(new FocusAdapter() Overridepublic void focusGained(FocusEvent e) int x=Integer.parseInt(tf1.getText();int y=Integer.parseInt(tf2.getText();int sum=x+y;tf3.setText(Integer.toString(sum););tf3.setHorizontalAlignment(SwingConstants.CENTER);tf3.setText(Get result);tf3.setBounds(134, 161, 148, 46);panel.add(tf3);tf3.setColumns(10); 实验题4 编写一个显示图像文件的Application应用程序，在该程序JFrame窗体中添加JPanel面板和一个JToolBar工具栏，在工具栏上添加一个JButton“打开”按扭，单击“打开”按纽，弹出JFileChooser文件打开选择对话框，选择图像文件后将其显示在JPnel面板中。实验题5使用SWT技术完成图3.10 所示图形界面的制作。要求“查询结果”用group组件。代码如下：import java.awt.EventQueue;import javax.swing.JFrame;import javax.swing.JPanel;import javax.swing.border.EmptyBorder;import javax.swing.JLabel;import java.awt.Font;import javax.swing.SwingConstants;import javax.swing.JTextField;import javax.swing.JButton;import javax.swing.GroupLayout;import javax.swing.GroupLayout.Alignment;import javax.swing.LayoutStyle.ComponentPlacement;import java.awt.event.ActionListener;import java.awt.event.ActionEvent;public class Qury extends JFrame private JPanel panel;private JTextField tf1;private JLabel label1;private JButton b1;private JButton b2;private JLabel label3;private JLabel label4;private JLabel label5;private JTextField tf2;private JTextField tf3;private JTextField tf4;/* * Launch the application. */public static void main(String args) EventQueue.invokeLater(new Runnable() public void run() try Qury frame = new Qury();frame.setVisible(true); catch (Exception e) e.printStackTrace(););/* * Create the frame. */public Qury() setTitle(u6309u5B66u53F7u67E5u8BE2);setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);setBounds(100, 100, 450, 450);panel = new JPanel();panel.setToolTipText();panel.setBorder(new EmptyBorder(5, 5, 5, 5);setContentPane(panel);label1 = new JLabel(u8BF7u8F93u5165u5B66u53F7uFF1A);label1.setHorizontalAlignment(SwingConstants.CENTER);label1.setFont(new Font(华文新魏, Font.PLAIN, 18);tf1 = new JTextField();tf1.setHorizontalAlignment(SwingConstants.CENTER);tf1.setColumns(10);b1 = new JButton(u786Eu5B9A);b1.addActionListener(new ActionListener() public void actionPerformed(ActionEvent arg0) String id=tf1.getText();String students=2009012873,张三,20,2009012874,李四,21,2009012875,王五,19,2009012876,刘文,20;for(int i=0;istudents.length;i+)if(id.equals(studentsi0)tf2.setText(studentsi0);tf3.setText(studentsi1);tf4.setText(studentsi2);break;);b1.setFont(new Font(楷体, Font.PLAIN, 18);b2 = new JButton(u91CDu7F6E);b2.addActionListener(new ActionListener() public void actionPerformed(ActionEvent arg0) tf1.setText(null);tf2.setText(null);tf3.setText(null);tf4.setText(null););b2.setFont(new Font(楷体, Font.PLAIN, 18);JLabel label2 = new JLabel(u67E5u8BE2u7ED3u679C:);label2.setHorizontalAlignment(SwingConstants.CENTER);label3 = new JLabel(u5B66u53F7uFF1A);label3.setFont(new Font(华文新魏, Font.PLAIN, 20);label3.setHorizontalAlignment(SwingConstants.CENTER);label4 = new JLabel(u59D3u540DuFF1A);label4.setHorizontalAlignment(SwingConstants.CENTER);label4.setFont(new Font(华文新魏, Font.PLAIN, 20);label5 = new JLabel(u5E74u9F84uFF1A);label5.setFont(new Font(华文新魏, Font.PLAIN, 20);label5.setHorizontalAlignment(SwingConstants.CENTER);tf2 = new JTextField();tf2.setHorizontalAlignment(SwingConstants.CENTER);tf2.setColumns(10);tf3 = new JTextField();tf3.setHorizontalAlignment(SwingConstants.CENTER);tf3.setColumns(10);tf4 = new JTextField();tf4.setHorizontalAlignment(SwingConstants.CENTER);tf4.setColumns(10);GroupLayout groupLayout = new GroupLayout(panel);groupLayout.setHorizontalGroup(groupLayout.createParallelGroup(Alignment.LEADING).addGroup(groupLayout.createSequentialGroup().addGroup(groupLayout.createParallelGroup(Alignment.LEADING).addGroup(groupLayout.createSequentialGroup().addGap(55, 55, 55).addGroup(groupLayout.createParallelGroup(Alignment.LEADING).addGroup(groupLayout.createSequentialGroup().addComponent(label1, GroupLayout.PREFERRED_SIZE, 111, GroupLayout.PREFERRED_SIZE).addGap(38, 38, 38).addGroup(groupLayout.createParallelGroup(Alignment.TRAILING).addComponent(b1, GroupLayout.PREFERRED_SIZE, 113, GroupLayout.PREFERRED_SIZE).addComponent(label4, GroupLayout.DEFAULT_SIZE, 151, Short.MAX_VALUE).addComponent(label3, Alignment.LEADING, GroupLayout.DEFAULT_SIZE, 151, Short.MAX_VALUE).addComponent(label5, Alignment.LEADING, GroupLayout.DEFAULT_SIZE, 151, Short.MAX_VALUE).addGroup(groupLayout.createParallelGroup(Alignment.LEADING).addGroup(groupLayout.createSequentialGroup().addGap(21, 21, 21).addComponent(b2, GroupLayout.PREFERRED_SIZE, 113, GroupLayout.PREFERRED_SIZE).addComponent(tf1, GroupLayout.PREFERRED_SIZE, 134, GroupLayout.PREFERRED_SIZE).addGroup(groupLayout.createSequentialGroup().addPreferredGap(ComponentPlacement.RELATED).addGroup(groupLayout.createParallelGroup(Alignment.LEADING).addComponent(tf3, Alignment.TRAILING, GroupLayout.DEFAULT_SIZE, 151, Short.MAX_VALUE).addComponent(tf2, GroupLayout.DEFAULT_SIZE, 151, Short.MAX_VALUE).addGroup(Alignment.TRAILING, groupLayout.createSequentialGroup().addComponent(tf4, GroupLayout.DEFAULT_SIZE, 151, Short.MAX_VALUE).addPreferredGap(ComponentPlacement.RELATED).addGroup(groupLayout.createSequentialGroup().addContainerGap().addComponent(label2, GroupLayout.PREFERRED_SIZE, 81, GroupLayout.PREFERRED_SIZE).addGap(57, 57, 57);groupLayout.setVerticalGroup(groupLayout.createParallelGroup(Alignment.LEADING).addGroup(groupLayout.createSequentialGroup().addGap(8, 8, 8).addGroup(groupLayout.createParallelGroup(Alignment.LEADING).addComponent(label1, GroupLayout.PREFERRED_SIZE, 30, GroupLayout.PREFERRED_SIZE).addComponent(tf1, GroupLayout.PREFERRED_SIZE, 30, GroupLayout.PREFERRED_SIZE).addGap(31, 31, 31).addGroup(groupLayout.createParallelGroup(Alignment.LEADING).addComponent(b1, GroupLayout.PREFERRED_SIZE, 27, GroupLayout.PREFERRED_SIZE).addComponent(b2, GroupLayout.PREFERRED_SIZE, 27, GroupLayout.PREFERRED_SIZE).addGap(21, 21, 21).addComponent(label2, GroupLayout.PREFERRED_SIZE, 29, GroupLayout.PREFERRED_SIZE).addGap(22, 22, 22).addGroup(groupLayout.createParallelGroup(Alignment.BASELINE).addComponent(label3, GroupLayout.PREFERRED_SIZE, 32, GroupLayout.PREFERRED_SIZE).addComponent(tf2, GroupLayout.PREFERRED_SIZE, 34, GroupLayout.PREFERRED_SIZE).addGap(28, 28, 28).addGroup(groupLayout.createParallelGroup(Alignment.BASELINE).addComponent(label4, GroupLayout.PREFERRED_SIZE, 26, GroupLayout.PREFERRED_SIZE).addComponent(tf3, GroupLayout.PREFERRED_SIZE, 36, GroupLayout.PREFERRED_SIZE).addGap(31, 31, 31).addGroup(groupLayout.createParallelGroup(Alignment.BASELINE).addComponent(label5, GroupLayout.PREFERRED_SIZE, 34, GroupLayout.PREFERRED_SIZE).addComponent(tf4, GroupLayout.PREFERRED_SIZE, 35, GroupLayout.PREFERRED_SIZE).addContainerGap(GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE);panel.setLayout(groupLayout);实验题6 使用SWT技术完成图3.11所示学籍管理主界面的设计与制作。代码如下import java.awt.BorderLayout;import java.awt.EventQueue;import javax.swing.JFrame;import javax.swing.JPanel;import javax.swing.border.EmptyBorder;import java.awt.Font;import javax.swing.JMenuBar;import javax.swing.JMenuItem;import javax.swing.SwingConstants;import javax.swing.JMenu;import javax.swing.JLabel;import java.awt.Color;import java.awt.event.ActionListener;import java.awt.event.ActionEvent;public class xueji extends JFrame private JPanel contentPane;/* * Launch the application. */public static void main(String args) EventQueue.invokeLater(new Runnable() public void run() try xueji frame = new xueji();frame.setVisible(true); catch (Exception e) e.printStackTrace(););/* * Create the frame. */public xueji() setFont(new Font(华文新魏, Font.PLAIN, 20);setTitle(u5B66u7C4Du7BA1u7406u7CFBu7EDF);setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);setBounds(100, 100, 450, 300);JMenuBar menuBar = new JMenuBar();setJMenuBar(menuBar);JMenu menu1 = new JMenu(u7CFBu7EDFu767Bu5F55);menu1.setHorizontalAlignment(SwingConstants.CENTER);menuBar.add(menu1);JMenuItem menuItem1 = new JMenuItem(u7528u6237u767Bu5F55);menuItem1.addActionListener(new ActionListener() public void actionPerformed(ActionEvent arg0) );menu1.add(menuItem1);JMenuItem menuItem2 = new JMenuItem(u9000u51FA);menuItem2.setSelected(true);menu1.add(menuItem2);JMenu menu2 = new JMenu(u7528u6237u7BA1u7406);menu2.setHorizontalAlignment(SwingConstants.CENTER);menuBar.add(menu2);JMenu menu3 = new JMenu(u5B66u7C4Du7BA1u7406);menu3.setHorizontalAlignment(SwingConstants.CENTER);menuBar.add(menu3);JMenu menu4 = new JMenu(u5173u4E8E);menu4.setHorizontalAlignment(SwingConstants.CENTER);menuBar.add(menu4);contentPane = new JPanel();contentPane.setBorder(new EmptyBorder(5, 5, 5, 5);contentPane.setLayout(new BorderLayout(0, 0);setContentPane(contentPane);JLabel label = new JLabel(u6B22u8FCEu4F7Fu7528u5B66u7C4Du7BA1u7406u7CFBu7EDF);label.setForeground(new Color(204, 51, 0);label.setFont