import java.awt.*;
import javax.swing.*;import java.awt.Event;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
public class CJ3 extends JFrame implements ActionListener
{
CJ3()
{
}
public void actionPerformerd(ActionEvent e)
{
}
public static void main (String args[])
{
new CJ3();
}
}
import javax.swing.*;import java.awt.Event;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
public class CJ3 extends JFrame implements ActionListener
{
CJ3()
{
}
public void actionPerformerd(ActionEvent e)
{
}
public static void main (String args[])
{
new CJ3();
}
}
import javax.swing.*;import java.awt.Event;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
public class CJ3 extends JFrame implements ActionListener
{
CJ3()
{}public static void main (String args[])
{
new CJ3();
}
@Override
public void actionPerformed(ActionEvent e) {
// TODO Auto-generated method stub
}
}
其中actionPerformed上面要加@Override表明你是重写父类方法,不然没重写父类的,你的只是重载
{}
是
actionPerformed(ActionEvent e){}
实现ActionListener必须重写父类的actionPerformed,楼主把名字写错了,强烈建议楼主以后重写的时候用IDE帮你自动实现,避免出现拼写等错误,非常难发现