我是初学的,帮我看看??
import java.awt.*;
import java.awt.event.*;
public class aa implements ActionListener
{
public static void main(String args[])
{
Frame F=new Frame("lihua");
Button button=new Button("ok");
TextArea text3=new TextArea(" ",10,10);
TextArea text2=new TextArea(" ",10,10);
TextField text=new TextField(10);
F.setVisible(true);
F.add(button);
F.setSize(100,200);
F.add(text3,"East");
F.add(text2,"Center") ;
F.add(text,"West");
F.pack();
button.addActionListener(this);//这行出错
}
public void actionPerformed(ActionEvent e)
{
text.setText("jj");//这行出错
}
}
帮我看看到底是什么问题...