怎样处里这个java问题

import java.applet.Applet.*;
import java.awt.Graphics.*;
public class labeldemo extends Applet
{ Button button1,button2;
Label label1;
TextField test1;
public void init()
{
resize(320,200);
button1=new Button("->");
add(button1);
button2=new Button("<-");
add(button2);
label1=new Label("transfor");
add(label1);
text1=new TextField(20);
add(text1);
}
}
public boolean action(Event e,Object o)
{
if(e.target.equals(button1))
{
text1.setText(label1.getText());
label1.setText("");
}
if(e.target.equals(button2))
{
text1.setText(label1.getText());
text.setText("");
}
return true;