实验8 图形界面程序设计

1、山西大学计算机与信息技术学院实验报告姓 名学 号 专业班级软件工程1班 课程名称 Java实验实验日期 2013/12/4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”和“再见”之间切换。程序代码：import java.awt.*;import java.awt.event.ActionEvent;import java.awt.event.ActionListener;import javax.swing.*;public class Test1 extend

2、s JFrameprivate JButton jbtOK;private JLabel jlbName;public Test1()jbtOK = new JButton(OK);jlbName = new JLabel(你好！);Panel panel = new Panel();panel.add(jlbName,BorderLayout.NORTH);panel.add(jbtOK,BorderLayout.SOUTH);add(panel);OKListenerClass m = new OKListenerClass();jbtOK.addActionListener(m);cla

3、ss OKListenerClass implements ActionListenerpublic void actionPerformed(ActionEvent e) jlbName.setText(再见);public static void main(String args)JFrame frame = new Test1();frame.setTitle(Test1);frame.setSize(200, 150);frame.setLocation(200, 100);frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);fra

4、me.setVisible(true);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：package shiyan8;import java.awt.*;import java.awt.event.KeyEvent;import java.awt.event.KeyListener;import javax.swing.*;public class ShowText extends JFrameprivate JTextField jtext;private JLabel jlbNam

5、e;public ShowText()jtext = new JTextField(8);jlbName = new JLabel(原文本);Panel panel = new Panel();Panel panel1 = new Panel();panel.add(jlbName);panel1.add(jtext);add(panel,BorderLayout.CENTER);add(panel1,BorderLayout.NORTH);TextTo m = new TextTo();jtext.addKeyListener(m); class TextTo implements KeyL

6、istenerpublic void keyPressed(KeyEvent e) public void keyReleased(KeyEvent e) if(e.getKeyChar() != KeyEvent.VK_ENTER)jlbName.setText(jtext.getText();public void keyTyped(KeyEvent e) if(e.getKeyChar() = KeyEvent.VK_ENTER)jlbName.setText(null); public static void main(String args)JFrame frame = new Sh

7、owText();frame.setTitle(ShowText);frame.setSize(200, 150);frame.setLocation(200, 100);frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);frame.setVisible(true);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 java.awt.event.ItemEvent;import java.awt.event.ItemLis

8、tener;import javax.swing.*;public class ShowGreen extends JFrameprivate JButton jbutton;private JCheckBox jchkBold;public ShowGreen()jbutton = new JButton(你好！);jchkBold = new JCheckBox();jbutton.setBackground(Color.GRAY);Panel panel = new Panel();Panel panel1 = new Panel();panel.add(jchkBold);panel1

9、.add(jbutton);add(panel,BorderLayout.CENTER);add(panel1,BorderLayout.NORTH);ShowTo m = new ShowTo();jchkBold.addItemListener(m); class ShowTo implements ItemListenerpublic void itemStateChanged(ItemEvent arg0) if(jchkBold.isSelected()jbutton.setBackground(Color.CYAN);elsejbutton.setBackground(Color.

10、GRAY); public static void main(String args)JFrame frame = new ShowGreen();frame.setTitle(ShowGreen);frame.setSize(200, 150);frame.setLocation(200, 100);frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);frame.setVisible(true);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.addActionLis

11、tener(new B1(); b2.addActionListener(new B2(); class B1 implements ActionListener 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：package shiyan8;import java.awt.*;import java.

12、awt.event.ActionEvent;import java.awt.event.ActionListener;import javax.swing.*;public class TwoButton extends JFrameprivate JButton b1;private JButton b2;private JLabel l;public TwoButton()b1 = new JButton(确定);b2 = new JButton(取消);l = new JLabel(文本);Panel panel = new Panel();Panel panel1 = new Pane

13、l();panel.add(l);panel1.add(b1);panel1.add(b2);add(panel,BorderLayout.NORTH);add(panel1,BorderLayout.CENTER);b1.addActionListener(new B1(); b2.addActionListener(new B2();class B1 implements ActionListener public void actionPerformed(ActionEvent e) l.setText(b1.getText(); class B2 implements ActionLi

14、stener public void actionPerformed(ActionEvent e) l.setText(b2.getText(); public static void main(String args)JFrame frame = new TwoButton();frame.setTitle(TwoButton);frame.setSize(200, 150);frame.setLocation(200, 100);frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);frame.setVisible(true);运行结果贴

15、图:5编程确定当前鼠标的位置坐标。程序代码：package shiyan8;import java.awt.event.MouseEvent;import java.awt.event.MouseMotionListener;import javax.swing.*;public class Mouse extends JFrameprivate JLabel jlbName;public Mouse()jlbName = new JLabel(显示区域);add(jlbName);MouseTo m = new MouseTo();jlbName.addMouseMotionListener

16、(m); class MouseTo implements MouseMotionListener public void mouseDragged(MouseEvent e) public void mouseMoved(MouseEvent e) jlbName.setText(鼠标当前的坐标为:( + e.getX() + , + e.getY() + ); public static void main(String args)JFrame frame = new Mouse();frame.setTitle(Mouse);frame.setSize(200, 150);frame.s

17、etLocation(200, 100);frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);frame.setVisible(true);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：package shiyan8;import javax.swing.JButton;import javax.swing.JFrame;import java.awt.BorderLayout;public class ShowBorderLayout extends JFramepublic ShowBorderLayo

18、ut()setLayout(new BorderLayout(5,10);add(new JButton(East),BorderLayout.EAST);add(new JButton(South),BorderLayout.SOUTH);add(new JButton(West),BorderLayout.WEST);add(new JButton(North),BorderLayout.NORTH);add(new JButton(Senter),BorderLayout.CENTER);public static void main(String args) ShowBorderLay

19、out frame = new ShowBorderLayout();frame.setTitle(ShowBorderLayout);frame.setSize(300, 200);frame.setLocation(200, 100);frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);frame.setVisible(true);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：package shiyan8;impo

20、rt javax.swing.*;import java.awt.event.*; public class MovePhoto extends JFrame private ImageIcon oneIcon = new ImageIcon(D:/eclipse/workspace/wenhui/bin/1.jpg); private ImageIcon twoIcon = new ImageIcon(D:/eclipse/workspace/wenhui/bin/2.jpg); private JLabel label; private JPanel p; public MovePhoto

21、() label = new JLabel(oneIcon); p = new JPanel(); setContentPane(p); p.setLayout(null); addKeyListener(new PanelListener(); label.setBounds(0, 0, 100, 100); p.add(label); private class PanelListener implements KeyListener public void keyPressed(KeyEvent e) label.setIcon(twoIcon); int x = label.getX(); int y = label.getY(); int w = p.getWidth(); int h = p.getHeight(); if