程序出错？

Question

好些不是哦，
因为上述程序我是直接copy出来的，没有中文的括号吧。

Answer 1

各位大侠帮我看看吧import java.applet.*;
import java.awt.*;
public class ExCard extends Applet{
public static CardLayout card=new CardLayout();
public static String myLables[]={
"7","8","9","4","5","6","1","2","3","0","+","=","-","*","/"
};
    public void init(){
resize(200,170);
    ExBorder c1=new ExBorder();
    ExGrid c2=new ExGrid();
    ExFlow c3=new ExFlow();
    setLayout(card);
    add("border",c1);
add("grid",c2);
add("flow",c3); 
}

//为何始终报下面的的（的错误呢？？？？
    public boolean handleEvent(Event e){
     if(e.1d==Event.MOUSE_DOWN) 
     card.next(this);
     return true;
     }    public void start(){
ExCard window=new ExCard();
window.show();
card.first(this);
}
}
class ExBorder extends Panel{
  public ExBorder(){
Panel p[]=new Panel[5];
setLayout(new BorderLayout());
p[0]=new Panel();add("East",p[0]);
p[1]=new Panel();add("South",p[1]);
p[2]=new Panel();add("West",p[2]);
p[3]=new Panel();add("North",p[3]);
p[4]=new Panel();add("Center",p[4]);
Button[]buttons=new Button[15];
for(int i=0;i<ExCard.myLables.length;i++){
buttons[i]=new Button(ExCard.myLables[i]);
p[3].add(buttons[i]);
}
}
    }
    
  class ExGrid extends Panel{
    public ExGrid(){
    setLayout(new GridLayout(5,3,5,5));
Button[]buttons=new Button[15];
for(int i=0;i<ExCard.myLables.length;i++){
buttons[i]=new Button(ExCard.myLables[i]);
add(buttons[i]);
}
}
   }
   
  class ExFlow extends Panel{
    public ExFlow(){
    setLayout(new FlowLayout(FlowLayout.RIGHT,5,6));
Button[]buttons=new Button[15];
for(int i=0;i<ExCard.myLables.length;i++){
buttons[i]=new Button(ExCard.myLables[i]);
add(buttons[i]);
}
}
    } 

Answer 2

public boolean handleEvent(Event e){
    if(e.1d==Event.MOUSE_DOWN) card.next(this);
         return true;
         }把e.1d该为id就可以啦