Java图形用户界面设计AWT全解.ppt

MouseEvent 鼠标移动 MouseListener mouseDragged(MouseEvent) mouseMoved(MouseEvent) MouseEvent 鼠标点击等 MouseListener mousePressed(MouseEvent) mouseReleased(MouseEvent) mouseEntered(MouseEvent) mouseExited(MouseEvent) mouseClicked(MouseEvent) KeyEvent 键盘输入 KeyListener KeyPressed(KeyEvent) KeyReleased(KeyEvent) KeyTyped(KeyEvent) FocusEvent 组件收到或失去焦点 FocusListener focusGained(FocusEvent) focusLost(focusEvent) AdjustementEvent 移动了滚动条等组件 AdjustmentListener adjustmentValueChanged(AdjustmentEvent) ComponentEvent 对象移动缩放显示隐藏等 ComponentListener componentMoved(ComponentEvent) componentHidden(ComponentEvent) componentResized(ComponentEvent) componentShown(ComponentEvent) WindowEvent 窗口收到窗口级事件 WindowListener windowClosing(WindowEvent) windowOpened(WindowEvent) windowIconified(WindowEvent) windowDeiconified(WindowEvent) windowClosed(WindowEvent) windowActivated(WindowEvent) windowDeactivated(WindowEvent) ContainerEvent 容器中增加删除了组件 ContainerListener componentAdded(containerEvent) componentRemoved(containerEvent) TextEvent 文本字段或文本区发生改变 TextListener textValueChanged(TextEvent) 例12.12 import java.awt.*; import java.awt.event.*; public class TwoListen implements MouseMotionListener,MouseListener,WindowListener { private Frame f; private TextField tf; public static void main(String args[]) { TwoListen two = new TwoListen(); two.go(); } public void go() { f = new Frame(Two listeners example); f.add(new Label(Click and drag the mouse),North); tf = new TextField(30); f.add(tf,South); f.addMouseMotionListener(this); f.addMouseListener(this); f.addWindowListener(this); f.setSize(300,200); f.setVisible(true); } public void mouseDragged (MouseEvent e) { String s = Mouse dragging : X=+e.getX()+Y = +e.getY(); tf.setText(s); } public void mouseMoved(MouseEvent e){} public void mouseClicked(MouseEvent e){} public void mouseEntered(MouseEvent e){ String s = The mouse entered; tf.setText(s);