[질문] 자바소스인데 윈도에선 잘되는데 리눅에선 안되요.

음냐. 윈도에선 컴파일이 잘되는데 리눅에선 안되네여. 다음과 같습니다. ㅡ.ㅡ;

[hurryon@localhost ~/java/1211/tmp]$ javac HelloJava2.java
HelloJava2.java15 errorCannot find method "addMouseMotionListener(HelloJava2)"

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;

public class HelloJava2 extends JComponent implements MouseMotionListener
{
int messageX=125;
int messageY=95;

String theMessage;

public HelloJava2(String message)
{
theMessage=message;

addMouseMotionListener(this);
}

public void paintComponent(Graphics g)
{
g.drawString(theMessage, messageX, messageY);
}

public void mouseDragged(MouseEvent e)
{
messageX=e.getX();
messageY=e.getY();

repaint();
}

public void mouseMoved(MouseEvent e) { }

public static void main(String args[])
{
JFrame fr=new JFrame("Hello Java2");

fr.addWindowListener(new WindowAdapter()
{
public void WindowClosing(WindowEvent e)
{
System.exit(0);
}
});

fr.setSize(300, 200);
fr.getContentPane().add(new HelloJava2("Hello, Java2!"));
fr.setVisible(true);
}
}