题型描述: 简答题
以下程序可否编译通过，如果不能，请指出其错误.
public class Forest implements Serializable{
private Tree tree = new Tree();，
public static void main(String[] args){
Forest f = new Forest();
try{
FileOutputStream fs = new FileOutputStream(Forest.Ser);
ObjectOutputStream os=new FileOutputStream(fs);
os.writeObject(f);
os.close();
}catch(Exception ex){
ex.printStackTrace();
}
}
}
Public class Tree{
}