(listener)... MouseListener, ActionLister. (adapter)... MouseAdapter, ActionAdapter. java.awt AWT Abstract Window Toolkit GUI
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1 51 6!! GUI(Graphical User Interface) java.awt javax.swing (component) GUI... (container) (listener)... MouseListener, ActionLister (adapter)... MouseAdapter, ActionAdapter 6.1 GUI(Graphics User Interface ) java.awt AWT Abstract Window Toolkit java.awt Graphics, Color java.awt GUI GUI java.awt GUI (component) GUI GUI (Container) java.awt 6.1 AWT Netscape Sun Microsystems Swing GUI javax.swing.jbutton javax.swing.jtextfield javax.swing.jpanel
2 52 6!! 6.1 Graphics2D Component java.awt Point, Dimention, Rectangle, Polygon Graphics, Color, SystemColor, Font, FontMetrics, Image, MediaTracker Graphics2D, AlphaCommposite, BasicStroke, Gradient- Paint, TexturePaint, StandardGlyphSet, GraphicsConfiguaration, GraphicsEnvironment, GraphicsDevice AWTEvent, AWTEventMulticaster Component, Button, Label, Checkbox, Choice, List, Canvas, TextComponent, TextField, TextArea, Scrollbar, Container, Panel, ScrollPane, Window, Frame CheckboxGroup, Insets, FlowLayout, BorderLayout, CardLayout, GridLayout, GridBagLayout, GridBagConstraints Menu, MenuItem, CheckboxMenuItem, PopupMenu, MenuShortcut, MenuBar, Cursor, Dialog, FileDiaglog, PrintJob, AWTPermission, Toolkit javax.swing.jframe GUI Java API GUI (event) java Java (delegation) (listener) (adapter) EventListener MouseListener, ActionLister 6.2!! MouseListener addmouselistener(mouselistener l)
3 6.2!! (MouseEvent1.java) import javax.swing.timer; import java.awt.event.*; 5 public class MouseEvent1 extends JApplet { int x, vx; Timer timer; 10 public void init(){ x = 0; vx = 1; timer = new Timer(20, new ActionListener(){ public void actionperformed(actionevent e){ if(x < d.width) x += vx; else x = 0; ); addmouselistener(new MouseAdapter(){ 25 public void mousereleased(mouseevent e){ timer.restart(); public void mousepressed(mouseevent e){ timer.stop(); 30 ); timer.start(); 35 g.clearrect(0, 0, d.width, d.height); g.drawarc(x, 10, 10, 10, 0, 360); 40 MouseListener MouseAdapter addmouselistener MouseAdaptor mousepressed mousereleased
4 54 6!! 6.2 MouseListener mouseclicked mouseentered mouseexited mousepressed mouserelieased 6.3!! MouseMotionListener addmousemotionlistener(mousemotionlistener l) MouseMotionListener addmousemotionlistener MouseMotionAdaptor mousemoved 6.3 mousedragged mousemoved MouseMotionListener
5 6.4!! (MouseEvent2.java) import javax.swing.timer; import java.awt.event.*; 5 public class MouseEvent2 extends JApplet { int x, vx; Timer timer; 10 public void init(){ x = 0; vx = 1; timer = new Timer(20, new ActionListener(){ public void actionperformed(actionevent e){ if(x < d.width) x += vx; else x = 0; ); addmousemotionlistener(new MouseMotionAdapter(){ 25 public void mousemoved(mouseevent e){ vx = (vx + 1) % 10; ); timer.start(); 30 g.clearrect(0, 0, d.width, d.height); g.drawarc(x, 10, 10, 10, 0, 360); !! MouseListener mouseclicked MouseEvent getx gety
6 56 6!! (MouseEvent3.java) import java.awt.event.*; public class MouseEvent3 extends JApplet { int x, y, w = 10; 5 public void init(){ 10 x = d.width / 2; y = d.height / 2; addmouselistener(new MouseAdapter(){ public void mouseclicked(mouseevent e){ 15 x = e.getx(); y = e.gety(); ); 20 g.clearrect(0, 0, d.width, d.height); 25 g.drawarc(x w / 2, y w / 2, w, w, 0, 360); 6.5!! x y = ( ) vy 5 y = 0 x vy > 0 vx 6.5.5
7 (MouseEvent8.java) import java.awt.color; import java.awt.event.*; 5 public class MouseEvent8 extends JApplet { int red = 0; public void init(){ 10 addmousewheellistener(new MouseWheelListener(){ public void mousewheelmoved(mousewheelevent e){ 15 red =(red + 10)% 256; ); 20 g.clearrect(0, 0, d.width, d.height); g.setcolor(new Color(red, 0, 0)); g.fillarc(10, 10, 10, 10, 0, 360); (10, 10) (0, 0) x () 2 ()
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