super(supervalue);
this.subvalue=subvalue;
}
public String toString() {
return super.toString()+" sub: "+subvalue;
}
private void writeObject(java.io.ObjectOutputStream out)
throws IOException{
out.defaultWriteObject();//先序列化对象
out.writeInt(supervalue);//再序列化父类的域
}
private void readObject(java.io.ObjectInputStream in)
throws IOException, ClassNotFoundException{
in.defaul
