import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
public class fff
{
public static void main(String []args)
{
new GExample().show();
}
}
class GExample extends JFrame
{
public GExample()
{
this.setBackground(Color.white);
this.setTitle("图形示例");
this.setSize(300,200);
addWindowListener(new WindowAdapter()
{
public void windowClosing(WindowEvent evt)
{
setVisible(false);
System.exit(0);
}
}
);
Container contentPane = getContentPane();
contentPane.add(new GExamplePanel());
contentPane.addMouseMotionListener(new GExamplePanel());
}
}
class GExamplePanel extends JPanel implements MouseMotionListener
{
int x,y;
public void mouseMoved(MouseEvent ME)
{
x = ME.getX();
y = ME.getY();
}
public void paintComponent(Graphics g)
{
g.drawLine(x+10,y,x-10,y);
g.drawLine(x,y+10,x,-10);
}
public void mouseDragged(MouseEvent Me){}
}
import java.awt.event.*;
import javax.swing.*;
public class fff
{
public static void main(String []args)
{
new GExample().show();
}
}
class GExample extends JFrame
{
public GExample()
{
this.setBackground(Color.white);
this.setTitle("图形示例");
this.setSize(300,200);
addWindowListener(new WindowAdapter()
{
public void windowClosing(WindowEvent evt)
{
setVisible(false);
System.exit(0);
}
}
);
Container contentPane = getContentPane();
contentPane.add(new GExamplePanel());
contentPane.addMouseMotionListener(new GExamplePanel());
}
}
class GExamplePanel extends JPanel implements MouseMotionListener
{
int x,y;
public void mouseMoved(MouseEvent ME)
{
x = ME.getX();
y = ME.getY();
}
public void paintComponent(Graphics g)
{
g.drawLine(x+10,y,x-10,y);
g.drawLine(x,y+10,x,-10);
}
public void mouseDragged(MouseEvent Me){}
}
import java.awt.Container;
import java.awt.Graphics;
import java.awt.event.MouseEvent;
import java.awt.event.MouseMotionListener;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;import javax.swing.JFrame;
import javax.swing.JPanel;public class MoustEvent { /**
* @param args
*/
public static void main(String[] args) {
// TODO Auto-generated method stub
JFrame frame = new GExample();
frame.setVisible(true);
}}class GExample extends JFrame { public GExample() {
// this.setBackground(Color.white);
this.setTitle("图形示例");
this.setSize(300, 300);
addWindowListener(new WindowAdapter() {
public void windowClosing(WindowEvent evt) {
setVisible(false);
System.exit(0);
}
});
Container contentPane = getContentPane();
contentPane.add(new GExamplePanel());
// contentPane.addMouseMotionListener(new GExamplePanel());
}}class GExamplePanel extends JPanel implements MouseMotionListener {
private int x, y; public GExamplePanel() {
addMouseMotionListener(this);
}
public void mouseMoved(MouseEvent ME) {
x = ME.getX();
y = ME.getY();
} public void paintComponent(Graphics g) {
super.paintComponent(g);
g.drawLine(x + 10, y, x - 10, y);
g.drawLine(x, y + 10, x, y -10);
repaint();
} public void mouseDragged(MouseEvent ME) { }
}
public GExamplePanel() {
addMouseMotionListener(this);
},
// contentPane.addMouseMotionListener(new GExamplePanel());
以及private int x, y;