I keep getting an error with the "ButtonListener." I don't know what it is that's causing it, but help would be appreciated.
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
public class MovingCarPanel extends JPanel
{
private int delay = 2;
private Car car;
private Timer timer;
private JButton accelerate, decelerate;
private JPanel buttonPanel;
int x, y;
int moveX;
public MovingCarPanel()
{
accelerate = new JButton ("Accelerate");
decelerate = new JButton ("Decelerate");
ButtonListener listener = new ButtonListener();
accelerate.addActionListener(listener);
decelerate.addActionListener(listener);
buttonPanel = new JPanel();
buttonPanel.setPreferredSize(new Dimension(200, 40));
//buttonPanel.setBackground (Color.blue);
buttonPanel.add (accelerate);
buttonPanel.add (decelerate);
add (buttonPanel);
timer = new Timer(delay, null);
timer.addActionListener(new SideCarListener());
car = new Car(50, 90, 90, 15);
setBackground(Color.white);
setPreferredSize(new Dimension(700, 500));
addMouseListener(new MouseCarListener());
x = 50;
y = 300;
moveX = 1;
timer.start();
}
public void paintComponent (Graphics page)
{
super.paintComponent(page);
car.draw(page);
}
private class MouseCarListener implements MouseListener
{
public void mousePressed(MouseEvent event)
{
moveX = -1*moveX;
}
public void mouseClicked(MouseEvent event){}
public void mouseReleased(MouseEvent event){}
public void mouseEntered(MouseEvent event){}
public void mouseExited(MouseEvent event){}
}
private class SideCarListener implements ActionListener
{
public void actionPerformed(ActionEvent event)
{
if(x == 700 && moveX > 0)
x = -90;
else if(x < -90 && moveX < 0)
x = 700;
car.setX(x);
car.setY(y);
repaint();
}
}
}
Thank you!
