bank.h

使用c++简单实现ATM自动提款机

//Bank.h
#include<algorithm>
#include<fstream>
#include"Transaction.h"
#include"Account.h"
#include<list>

class Bank {
 
public:
     

   Bank(char *filename);
   ~Bank();
   void addAccount(char* uname,int pincode,float bal,float overdraft);
   void removeAccount(int id);
   bool validate(int id,int pincode);
   void processTrans(Transaction*);
   void print();
   Account* getAccount(int i );//  return a pointer to the Account with this id
   void update(char* newfile); //Update information about the accounts to a new file
private:
   list<Account> L;
   
};

Bank::Bank(char* filename){
   
   ifstream in(filename);
   if(!in){ //The input file is not found, the Program will be determinated!
            cerr<<"Can not find the Account Record File!"<<endl;
            exit(1);
              }

   char* uname=new char[80];
   int uid,ucode;
   float ubalance,uoverdraft;
   
  // get the accounts to store in a list of STL in memory
   while(!in.eof()) 
   {
     
     in>>uname>>uid>>ucode>>ubalance>>uoverdraft;    
     
     Account *NewAccount= new Account(uname,uid,ucode,ubalance,uoverdraft);
     L.push_back(*NewAccount);
     delete NewAccount;
     
    }
   delete[] uname;  
  
 }
Bank::~Bank(){}
void Bank::update(char* newfile){
  ofstream out(newfile);
  if(!out){
            cerr<<"Can not find the New Account Record File!"<<endl;
            exit(1);
              }
       
       int uid,ucode;
       float ubalance,uoverdraft; 
 
  list <Account>::iterator Iter;
  for(Iter=L.begin();Iter!=L.end();Iter++)
      {
         char * uname=new char[strlen(Iter->getName())+1];
         strcpy(uname,Iter->getName());   
         uid=Iter->getID();
         ucode=Iter->getCode();
         ubalance=Iter->getBalance();
         uoverdraft=Iter->getOverdraft();
       
        out<<uname<<" "<<uid<<" "<<ucode<<" "<<ubalance<<" "<<uoverdraft; 
        if(Iter!=--L.end())
        out<<endl;
        delete[] uname; 
       }  
         
}
void Bank::addAccount(char* uname,int pincode,float bal,float overdraft){
  int uid=L.size()+1; 
    
  Account nameAccount(uname,uid,pincode,bal,overdraft);
  L.push_back(nameAccount);
}
void Bank::removeAccount(int id){
  
  list <Account>::iterator Iter;
  for(Iter=L.begin();Iter!=L.end();Iter++)
     {
    if(Iter->getID()==id)
      L.erase(Iter,++Iter); 
     }

 }
bool Bank::validate(int id,int pincode){

   list<Account>::iterator Iter;
   Iter=L.begin();
   while(Iter!=L.end())
     {
      if(Iter->getID()==id)//First find the id 
      
       { 
         if(Iter->getCode()==pincode)//check pincode is valid
       
            return true; 
      
         else
  
            return false;

        }
        else
        Iter++;
     }
     return false;
  }

void Bank::processTrans(Transaction* trans)
{
     
     trans->execute();
 
    
}
void Bank::print(){
   
   list<Account>::iterator Iter;
   for(Iter=L.begin();Iter!=L.end();Iter++)
        Iter->print();
     
   
} 
Account* Bank::getAccount(int id){
    
     list<Account>::iterator Iter;
     Iter=L.begin();
    
     while(Iter!=L.end())
      {
         if(Iter->getID()==id)

          return &(*Iter);
  
         else
               
          Iter++; 
      }
     
     return 0;
}