如题!求解!!!
附上代码
import java.awt.*;
import java.awt.event.*;public class TestMouseDrag extends Frame{ TestMouseDrag(){
setBounds(100,100,500,500);
addMouseListener(new MouseAction());
setVisible(true) ;
addWindowListener(new WindowAdapter(){
public void windowClosing(WindowEvent e){
System.exit(0);
}
});
} public static void main( String args[ ] ){
new TestMouseDrag();
} private class MouseAction extends MouseAdapter{
public void mouseClicked(MouseEvent e){
System.out.println("clicked!");
}
public void mouseDragged(MouseEvent e){
System.out.println("dragged!");
}
}
}
附上代码
import java.awt.*;
import java.awt.event.*;public class TestMouseDrag extends Frame{ TestMouseDrag(){
setBounds(100,100,500,500);
addMouseListener(new MouseAction());
setVisible(true) ;
addWindowListener(new WindowAdapter(){
public void windowClosing(WindowEvent e){
System.exit(0);
}
});
} public static void main( String args[ ] ){
new TestMouseDrag();
} private class MouseAction extends MouseAdapter{
public void mouseClicked(MouseEvent e){
System.out.println("clicked!");
}
public void mouseDragged(MouseEvent e){
System.out.println("dragged!");
}
}
}
MouseAdapter是实现了这个接口但是 你只addMouseListener 没有 addMouseMotionListener.. 所以mouseDragged() 你根本没有绑定到程序里去