java图形界面编程技术手册

1、图形界面编程技术手册编写：Kende_zhu第一节基本容器JFrame1、第一个JFrame窗体程序public class JFrameDemo public static void main(String args) JFrame jf = new JFrame(这是我的第一个swing窗体);Dimension d = new Dimension(300, 200);jf.setSize设置窗体大小(d);Point p = new Point(500, 400);jf.setLocation设置窗体位置(p);jf.setVisible设置窗体可见(true);第二节标签组件JLabe

2、l1、定义标签对象public class JLabelDemo public static void main(String args) JFrame jf = new JFrame(这是我的第一个swing窗体);JLabel lab = new JLabel(KENDE, JLabel.CENTER);/实例化标签对象jf.add(lab);将Label组件添加到JFrame面板中/将Label组件添加到JFrame面板中Dimension d = new Dimension(300, 200);jf.setSize(d);Point p = new Point(500, 400);设置

3、坐标位置jf.setLocation(p);jf.setVisible(true);2、定义标签字体标签可以设置字体，包括什么字体，字体的颜色，大小，是否斜体等public class JLabelDemo2 public static void main(String args) JFrame jf = new JFrame(这是我的第一个swing窗体);JLabel lab = new JLabel(KENDE, JLabel.CENTER);/实例化标签对象Font font = new Font(Dialog, Font.ITALIC + Font.BOLD, 30);lab.set

4、Font(font);定义标签字体jf.add(lab);/将组件添加到面板中Dimension d = new Dimension(300, 200);jf.setSize(d);Point p = new Point(500, 400);jf.setLocation(p);jf.setVisible(true);3、得到本机中所有的字体public class GetAllFonts public static void main(String args) GraphicsEnvironment g = GraphicsEnvironment.getLocalGraphicsEnviron

5、ment();String fonts = g.getAvailableFontFamilyNames();for (String name: fonts) System.out.println(name);4、在Label中设置显示的图片public class JLabelDemo3 public static void main(String args) JFrame jf = new JFrame(这是我的第一个swing窗体);Icon icon = new ImageIcon(E:picBackGroud野生动物王国.jpg);JLabel lab = new JLabel(KEN

6、DE, iconLabel中加入图片, JLabel.CENTER);/ 实例化标签对象Font font = new Font(Serif, Font.ITALIC + Font.BOLD, 30);lab.setFont(font);jf.add(lab)将标签组件添加到JFrame面板中;/ 将组件添加到面板中Dimension d = new Dimension(300, 200);jf.setSize(d);Point p = new Point(500, 400);jf.setLocation(p);jf.setVisible(true);第三节按钮组件JButton1、在JFra

7、me中增加按钮public class JButtonDemo01 public static void main(String args) JFrame frame = new JFrame(Welcome to Kendes home！);JButton bt = new JButton(按钮);定义JButton实例frame.add(bt);往JFrame中添加按钮frame.setSize(300,200);frame.setLocation(400, 300);frame.setVisible(true);2、往JButton中添加图片public class JButtonDem

8、o02 public static void main(String args) JFrame frame = new JFrame(Welcome to Kendes home！);String picPath = E:picBackGrouda.jpg;Icon icon = new ImageIcon(picPath);JButton bt = new JButton(icon);往JButton中设置图片frame.add(bt);frame.setSize(800,500);frame.setLocation(400, 300);frame.setVisible(true);第四节布

9、局管理器1、FlowLayout布局管理器FlowLayout属于流式布局管理器，使用此种布局方式，所有的组件会像流水一样依次排列。public class FlowLayoutDemo01 public static void main(String args) JFrame frame = new JFrame(Welcome to kendes home);frame.setLayout设置JFrame容器的流式布局管理器(new FlowLayout(FlowLayout.CENTER, 20组件的水平间距, 20组件的垂直间距);JButton button = null;for(i

10、nt i = 0; i 9; i +)button = new JButton(按钮- + i);frame.add(button);frame.setSize(800,500);frame.setLocation(400, 300);frame.setVisible(true);效果图：2、BorderLayout布局管理器BorderLayout将一个窗体的版面划成东，西，南，北，中五个区域，可以直接将需要的组件放到五个区域即可public class BorderLayoutDemo01 public static void main(String args) JFrame frame

11、= new JFrame(Welcome to kendes home);frame.setLayout设置JFrame容器的Border布局管理器（东西南北中）(new BorderLayout(20, 20);frame.add(new JButton(东), BorderLayout.EAST将按钮组件放在BorderLayout的东部);frame.add(new JButton(西), BorderLayout.WEST);frame.add(new JButton(南), BorderLayout.SOUTH);frame.add(new JButton(北), BorderLay

12、out.NORTH);frame.add(new JButton(中), BorderLayout.CENTER);frame.setSize(500,300);frame.setLocation(400, 300);frame.setVisible(true);3、GridLayout布局管理器GridLayout布局管理器是以表格的形式进行管理的，在使用此布局管理器的时候必须设置显示的行数和列数。public class GridLayoutDemo01 public static void main(String args) JFrame frame = new JFrame(Welco

13、me to kendes home);frame.setLayout(new GridLayout(3, 5表示3行5列, 3, 3水平间距和垂直间距)添加表格形式的布局管理器;JButton button = null;for(int i = 0; i 13; i +)button = new JButton(按钮- + i);frame.add(button);frame.setSize(500,300);frame.setLocation(400, 300);frame.setVisible(true);效果图：4、CardLayout布局管理器CardLayout就是将一组组件彼此重叠

14、的进行布局，就像一张张卡片一样，这样每次只会展现一个界面public class CardLayoutDemo01 public static void main(String args) JFrame frame = new JFrame(Welcome to kendes home);CardLayout card = new CardLayout();frame.setLayout(card);将JFrame容器设置为CardLayout布局方式Container con = frame.getContentPane()得到JFrame窗体的contentPane对象;con.add将指

15、定的组件添加到此JFrame容器的尾部(new JLabel(标签-A, JLabel.CENTER), first);con.add(new JLabel(标签-B, JLabel.CENTER), second);con.add(new JLabel(标签-C, JLabel.CENTER), third);con.add(new JLabel(标签-D, JLabel.CENTER), fourth);con.add(new JLabel(标签-E, JLabel.CENTER), fifth);frame.pack()自动调整窗体的大小;frame.setVisible(true);c

16、ard.show(con, third);翻转到具有指定name的组件：比如翻转到指定name为third的组件，这个时候对应的组件为标签 Cfor (int i = 0; i 窗口被选中) ;public void windowClosed(WindowEvent e)System.out.println(windowClosed - 窗口被关闭) ;public void windowClosing(WindowEvent e)System.out.println(windowClosing - 窗口关闭) ;System.exit(1) ;public void windowDeacti

17、vated(WindowEvent e)System.out.println(windowDeactivated - 取消窗口选中) ;public void windowDeiconified(WindowEvent e)System.out.println(windowDeiconified - 窗口从最小化恢复) ;public void windowIconified(WindowEvent e)System.out.println(windowIconified - 窗口最小化) ;public void windowOpened(WindowEvent e)System.out.p

18、rintln(windowOpened - 窗口被打开) ;public class MyEventWindowEventJFrame01public static void main(String args)JFrame frame = new JFrame(Welcome To kendes home) ; frame.addWindowListener(new MyWindowEventHandle() ;/ 加入事件frame.setSize(300,150) ;frame.setBackground(Color.WHITE) ;frame.setLocation(300,200) ;

19、frame.setVisible(true) ;注意：发现以上程序虽然实现了窗口关闭，但是没有必要实现那么多的方法，可以如何做呢，其实在事件中提供了很多的适配器class MyWindowEventHandle2 extends WindowAdapterpublic void windowClosing(WindowEvent e)System.out.println(windowClosing - 窗口关闭) ;System.exit(1) ;public class MyEventWindowEventJFrame02public static void main(String args

20、)JFrame frame = new JFrame(Welcome To kendes home) ; frame.addWindowListener(new MyWindowEventHandle2() ;/ 加入事件frame.setSize(300,150) ;frame.setBackground(Color.WHITE) ;frame.setLocation(300,200) ;frame.setVisible(true) ;现在只要求一个关闭，资源太浪费了，可以使用匿名内部类的做法减少代码量public class MyEventWindowEventJFrame03public

21、 static void main(String args)JFrame frame = new JFrame(Welcome To kendes home) ; frame.addWindowListener(new WindowAdapter()public void windowClosing(WindowEvent e)System.out.println(windowClosing - 窗口关闭) ;System.exit(1) ;) ;/ 加入事件frame.setSize(300,150) ;frame.setBackground(Color.WHITE) ;frame.setL

22、ocation(300,200) ;frame.setVisible(true) ;2、按钮事件如果要使得按钮有效，那么只需要使用ActionListener接口class ActionHandleprivate JFrame frame = new JFrame(Welcome To kendes home) ; private JButton but = new JButton(显示);private JLabel lab = new JLabel() ;private JTextField text = new JTextField(10) ;private JPanel pan = n

23、ew JPanel() ;public ActionHandle()Font fnt = new Font(Serief,Font.ITALIC + Font.BOLD,28) ;lab.setFont(fnt) ;/ 设置标签的显示文字lab.setText(等待用户输入信息！) ;but.addActionListener(new ActionListener()public void actionPerformed(ActionEvent e)/ if(e.getSource() instanceof JButton)/ 判断是否是按钮if(e.getSource()=but)lab.s

24、etText(text.getText() ;) ;frame.addWindowListener(new WindowAdapter()public void windowClosing(WindowEvent e)System.exit(1) ;) ;/ 加入事件frame.setLayout(new GridLayout(2,1) ;pan.setLayout(new GridLayout(1,2) ;pan.add(text);pan.add(but) ;frame.add(pan) ;frame.add(lab) ;frame.pack() ;frame.setBackground(

25、Color.WHITE) ;frame.setLocation(300,200) ;frame.setVisible(true) ;public class MyActionEventDemo01public static void main(String args) new ActionHandle() ;完成一个简单的用户登录，用户名是kende，密码是123class LoginCheckprivate String name ;private String password ;public LoginCheck(String name,String password)

26、 = name ;this.password = password ;public boolean validate()if(kende.equals(name)&123.equals(password)return true ;elsereturn false ;class ActionHandle2private JFrame frame = new JFrame(Welcome To kendes home) ; private JButton submit = new JButton(登陆);private JButton reset = new JButton(重置);private

27、 JLabel nameLab = new JLabel(用户名：) ;private JLabel passLab = new JLabel(密 码：) ;private JLabel infoLab = new JLabel(用户登陆系统) ;private JTextField nameText = new JTextField(10) ;private JPasswordField passText = new JPasswordField() ;private JPanel pan = new JPanel() ;public ActionHandle2()Font fnt = ne

28、w Font(Serief,Font.ITALIC + Font.BOLD,12) ;infoLab.setFont(fnt) ;/ 设置标签的显示文字submit.addActionListener(new ActionListener()public void actionPerformed(ActionEvent e)if(e.getSource()=submit)String tname = nameText.getText() ;String tpass = new String(passText.getPassword() ;LoginCheck log = new LoginCh

29、eck(tname,tpass) ;if(log.validate()infoLab.setText(登陆成功，欢迎光临！) ;elseinfoLab.setText(登陆失败，错误的用户名或密码！) ;) ;reset.addActionListener(new ActionListener()public void actionPerformed(ActionEvent e)if(e.getSource()=reset)nameText.setText() ;passText.setText() ;infoLab.setText(用户登陆系统) ;) ;frame.addWindowLis

30、tener(new WindowAdapter()public void windowClosing(WindowEvent e)System.exit(1) ;) ;/ 加入事件frame.setLayout(null) ;nameLab.setBounds(5,5,60,20) ;passLab.setBounds(5,30,60,20) ;infoLab.setBounds(5,65,220,30) ;nameText.setBounds(65,5,100,20) ;passText.setBounds(65,30,100,20) ;submit.setBounds(165,5,60,2

31、0) ;reset.setBounds(165,30,60,20) ;frame.add(nameLab) ;frame.add(passLab) ;frame.add(infoLab) ;frame.add(nameText) ;frame.add(passText) ;frame.add(submit) ;frame.add(reset) ;frame.setSize(280,130) ;frame.setBackground(Color.WHITE) ;frame.setLocation(300,200) ;frame.setVisible(true) ;public class MyA

32、ctionEventDemo03public static void main(String args) new ActionHandle2() ;3、键盘事件class MyKeyHandle extends JFrame implements KeyListenerprivate JTextArea text = new JTextArea() ;public MyKeyHandle()super.setTitle(Welcome To kendes home) ;JScrollPane scr = new JScrollPane(text) ;scr.setBounds(5,5,300,

33、200) ;super.add(scr) ;text.addKeyListener(this) ;super.addWindowListener(new WindowAdapter()public void windowClosing(WindowEvent e)System.exit(1) ;) ;/ 加入事件super.setSize(310,210) ;super.setVisible(true) ;public void keyPressed(KeyEvent e)text.append(键盘“ + KeyEvent.getKeyText(e.getKeyCode()+ ”键按下n)

34、;public void keyReleased(KeyEvent e)text.append(键盘“ + KeyEvent.getKeyText(e.getKeyCode()+ ”键松开n) ;public void keyTyped(KeyEvent e)text.append(输入的内容是： + e.getKeyChar() + n) ; ;public class MyKeyEventDemo01public static void main(String args)new MyKeyHandle() ;以上的键盘事件中，类必须要实现接口中的所有方法，太麻烦，那么在swing中也提供了

35、键盘处理的Adapter类，直接使用此类即可。class MyKeyHandle2 extends JFrameprivate JTextArea text = new JTextArea() ;public MyKeyHandle2()super.setTitle(Welcome To kendes home) ;JScrollPane scr = new JScrollPane(text) ;scr.setBounds(5,5,300,200) ;super.add(scr) ;text.addKeyListener(new KeyAdapter()public void keyTyped

36、(KeyEvent e)text.append(输入的内容是： + e.getKeyChar() + n) ; ) ;super.addWindowListener(new WindowAdapter()public void windowClosing(WindowEvent e)System.exit(1) ;) ;/ 加入事件super.setSize(310,210) ;super.setVisible(true) ;public class MyKeyEventDemo02public static void main(String args)new MyKeyHandle2() ;

37、4、鼠标事件class MyMouseHandle extends JFrame implements MouseListenerprivate JTextArea text = new JTextArea() ;public MyMouseHandle()super.setTitle(Welcome To kendes home) ;JScrollPane scr = new JScrollPane(text) ;scr.setBounds(5,5,300,200) ;super.add(scr) ;text.addMouseListener(this) ;super.addWindowLi

38、stener(new WindowAdapter()public void windowClosing(WindowEvent e)System.exit(1) ;) ;/ 加入事件super.setSize(310,210) ;super.setVisible(true) ;public void mouseClicked(MouseEvent e)int c = e.getButton() ;String mouseInfo = null ;if(c=MouseEvent.BUTTON1)mouseInfo = 左键 ;if(c=MouseEvent.BUTTON3)mouseInfo =

39、 右键 ;if(c=MouseEvent.BUTTON2)mouseInfo = 滚轴 ;text.append(鼠标单击： + mouseInfo + n) ;public void mouseEntered(MouseEvent e)text.append(鼠标进入组件。n) ;public void mouseExited(MouseEvent e)text.append(鼠标离开组件。n) ;public void mousePressed(MouseEvent e)text.append(鼠标按下。n) ;public void mouseReleased(MouseEvent e)text.append(鼠标松开。n) ;public class MyMouseEven