Question

i dont know this solution…

for example, my code is,

class Bank
{
 private :
  list < Client*> clientList;

}

class Client
{
private :
 list< Account*> accountList;

}

class account
{
private 
 list< string> statement;

}

oh, i want to access statement in bank class! and i think how to access its…

1) making list< Account*> getAccountList() method in Client class and list<string> getStatement() method in Account.

but why list is private? umm, may as well public?

2) making list access method(umm, for example, pop and push?) in All Class..

i got 2. but it’s terrible. I have a lot to do, and repeated similar function…

what is best way? it is way i never know?

Answer 1

The best solution is to have accessor methods in each class returning const reference to the list:

class Account
{
   private:
      list<string> statements;

   public:
      const list<string>& getStatements() const
      {
         return statements;
      }
};

This is better than public because the returned list reference is not modifiable.

You could have methods returning const_iterator but then you must have methods on each class that return begin,end, and any other list operations you expect you might need.