实验8-图形界面程序设计.doc

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1、Four short words sum up what has lifted most successful individuals above the crowd: a little bit more.-author-date实验8-图形界面程序设计山西大学计算机与信息技术学院山西大学计算机与信息技术学院实验报告姓 名 郭彩峰学 号2012242018 专业班级软一课程名称 Java实验实验日期2014.12.11成 绩指导教师 批改日期实验名称实验 8 图形界面程序设计一、实验目的掌握常用GUI控制组件及其事件处理。二、实验内容1编程包含一个标签和一个按钮，单击按钮时，标签的内容在“你好

2、”和“再见”之间切换。程序代码：import java.awt.*; import java.awt.event.*; import javax.swing.*; public class ChangeGUI extends JFrame private JButton button; private JLabel label; public ChangeGUI() super(Say Hello); JPanel panel = new JPanel(); JPanel panel2 = new JPanel(); setLayout(new GridLayout(2,1,0,5); but

3、ton = new JButton(OK); button.setBackground(Color.gray); button.setForeground(Color.RED); panel.add(button); button.addActionListener(new OKActionListener(); label = new JLabel(你好); label.setForeground(Color.BLUE); panel2.add(label); add(panel2); add(panel); private class OKActionListener implements

4、 ActionListener public void actionPerformed(ActionEvent e) if(label.getText()=你好) label.setText(再见); else label.setText(你好); public static void main(String args) ChangeGUI change = new ChangeGUI(); change.setSize(200, 100); change.setVisible(true); change.setLocationRelativeTo(null); change.setDefau

5、ltCloseOperation(JFrame.EXIT_ON_CLOSE); 运行结果贴图: 2编程包含一个文本框和一个文本区域，文本框内容改变时，将文本框中的内容显示在文本区域中；在文本框中按回车键时，清空文本区域的内容。程序代码：import java.awt.*; import javax.swing.*; import javax.swing.border.*; import java.awt.event.*; public class ShowText extends JFrame private JTextField text1; private JTextArea text2;

6、 public ShowText() super(Tetx Show); JPanel p1 = new JPanel(); p1.setBackground(Color.BLUE); p1.setBorder(new TitledBorder(文本框); text1 = new JTextField(10); text1.addKeyListener(new TextListener(); p1.add(text1); JPanel p2 = new JPanel(); p2.setBackground(Color.YELLOW); p2.setBorder(new TitledBorder

7、(文本区域); text2 = new JTextArea(原文本,10,10); text2.setLineWrap(true); text2.setEditable(false); p2.add(text2); setLayout(new GridLayout(2,1,0,5); add(p1); add(p2); setSize(200,200); setVisible(true); this.setLocationRelativeTo(null); setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); private class TextLis

8、tener implements KeyListener public void keyPressed(KeyEvent e) public void keyReleased(KeyEvent e) if(e.getKeyChar()!=KeyEvent.VK_ENTER) text2.setText(text1.getText(); public void keyTyped(KeyEvent e) if(e.getKeyChar()=KeyEvent.VK_ENTER) text2.setText(null); public static void main(String args) JFr

9、ame frame = new ShowText(); 运行结果贴图: 3编程包含一个复选按钮和一个普通按钮，复选按钮选中时，普通按钮的背景色为青色，未选中时为灰色。程序代码：import java.awt.*; import javax.swing.*; import java.awt.event.*; public class ChangeButtonColor extends JFrame private JButton button; private JCheckBox checkBox; public ChangeButtonColor() super(改变按钮颜色); JPanel

10、 p1 = new JPanel(); p1.setBackground(Color.RED); setLayout(new GridLayout(2,1); button = new JButton(Hello); button.setSize(20, 20); button.setBackground(Color.GREEN); p1.add(button); JPanel p2 = new JPanel(); p2.setBackground(Color.CYAN); checkBox = new JCheckBox(); checkBox.addItemListener(new che

11、ckBoxListener(); p2.add(checkBox); add(p1); add(p2); setSize(200,200); setVisible(true); this.setLocationRelativeTo(null); setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); private class checkBoxListener implements ItemListener public void itemStateChanged(ItemEvent e) if(checkBox.isSelected() button.

12、setBackground(Color.CYAN); else button.setBackground(Color.GREEN); public static void main(String args) ChangeButtonColor b = new ChangeButtonColor(); 运行结果贴图: 4编程包含两个按钮和一个标签，将发生单击事件的按钮上的文本信息显示在标签中。提示：关键代码如下： b1.addActionListener(new B1(); b2.addActionListener(new B2(); class B1 implements ActionList

13、ener public void actionPerformed(ActionEvent e) who.setText(Button 1); class B2 implements ActionListener public void actionPerformed(ActionEvent e) who.setText(Button 2); 程序代码：import java.awt.*; import javax.swing.*; import java.awt.event.*; public class ShowButtonText extends JFrame private JButto

14、n b1; private JButton b2; private JLabel label; public ShowButtonText() super(显示选中按钮信息); setLayout(new GridLayout(2,1); JPanel p1 = new JPanel(); p1.setBackground(Color.WHITE); label = new JLabel(标签); label.setSize(20, 10); label.setBackground(Color.BLUE); p1.add(label); add(p1); JPanel p2 = new JPa

15、nel(); p2.setBackground(Color.WHITE); b1 = new JButton(你好); b2 = new JButton(再见); ButtonListener b = new ButtonListener(); b1.addActionListener(b); b2.addActionListener(b); p2.add(b1); p2.add(b2); add(p2); setSize(200,200); setVisible(true); this.setLocationRelativeTo(null); this.setDefaultCloseOper

16、ation(JFrame.EXIT_ON_CLOSE); private class ButtonListener implements ActionListener public void actionPerformed(ActionEvent e) if(e.getSource()=b1) label.setText(b1.getText(); else if(e.getSource()=b2) label.setText(b2.getText(); public static void main(String args) ShowButtonText s = new ShowButton

17、Text(); 运行结果贴图: 5编程确定当前鼠标的位置坐标。程序代码：import java.awt.*; import javax.swing.*; import java.awt.event.*; public class LocateMouse extends JFrame private JButton location; public LocateMouse() super(寻找鼠标); location = new JButton(显示鼠标位置); location.setSize(20,10); add(location); location.addMouseMotionLis

18、tener(new MouseMotionListener() public void mouseDragged(MouseEvent e) public void mouseMoved(MouseEvent e) location.setText(鼠标现在位于（+e.getX()+,+e.getY()+); ); setSize(300,200); setLocationRelativeTo(null); setVisible(true); location.setBackground(Color.RED); setDefaultCloseOperation(JFrame.EXIT_ON_C

19、LOSE); public static void main(String args) LocateMouse mouse = new LocateMouse(); 运行结果贴图: 6编程使用BorderLayout布局方式放置5个按钮。程序代码：import java.awt.*; import javax.swing.*; import java.awt.event.*; public class TestBorderLayout extends JFrame private JButton nButton = new JButton(北); private JButton sButton

20、 = new JButton(南); private JButton wButton = new JButton(西); private JButton eButton = new JButton(东); private JButton cButton = new JButton(中); public TestBorderLayout() setLayout(new BorderLayout(5,5); add(nButton,BorderLayout.NORTH); add(sButton,BorderLayout.SOUTH); add(wButton,BorderLayout.WEST)

21、; add(eButton,BorderLayout.EAST); add(cButton,BorderLayout.CENTER); nButton.setBackground(Color.PINK); sButton.setBackground(Color.PINK); wButton.setBackground(Color.PINK); eButton.setBackground(Color.PINK); cButton.setBackground(Color.PINK); public static void main(String args) TestBorderLayout t =

22、 new TestBorderLayout(); t.setSize(250,200); t.setVisible(true); t.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); t.setLocationRelativeTo(null); 运行结果贴图:7. 编写程序，实现使用键盘上的上下左右箭头控制界面上图片的移动。移动到边界时从界面另一侧出现。移动过程中显示另一个图片，停止时恢复原来的图片。程序代码：import java.awt.*; import javax.swing.*; import java.awt.event.*; publ

23、ic class MoveImage extends JFrame private ImageIcon oneIcon = new ImageIcon(image/happy.jpg); private ImageIcon twoIcon = new ImageIcon(image/hello.jpg); private JLabel label; JPanel p; public MoveImage() super(Image Move); setSize(500,500); setLocationRelativeTo(null); label = new JLabel(oneIcon);

24、p = new JPanel(); setContentPane(p); p.setLayout(null); this.addKeyListener(new PanelListener(); label.setBounds(0, 0, 100, 100); p.add(label); p.setBackground(Color.PINK); setVisible(true); setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); private class PanelListener implements KeyListener public voi

25、d keyPressed(KeyEvent e) label.setIcon(twoIcon); int x = label.getX(); int y = label.getY(); int w = p.getWidth(); int h = p.getHeight(); if(e.getKeyCode()=KeyEvent.VK_UP) -y; if(y=h) y = 0; label.setBounds(x, y, 100, 100); else if(e.getKeyCode()=KeyEvent.VK_LEFT) x-; if(x=w) x = 0; label.setBounds(

26、x, y, 100, 100); public void keyReleased(KeyEvent e) if(e.getKeyCode()=KeyEvent.VK_UP|e.getKeyCode()=KeyEvent.VK_DOWN |e.getKeyCode()=KeyEvent.VK_LEFT|e.getKeyCode()=KeyEvent.VK_RIGHT) label.setIcon(oneIcon); public void keyTyped(KeyEvent e) public static void main(String args) MoveImage m = new MoveImage(); 运行结果贴图: -