listdriver.cc

C++ class and storage

//listDriver.cc
//ECE106 Lab#5
//Name: Mo Li
//Student#: 995447379
//Date:Mar.09,2007
#include<iostream>
#include<string>
#include "listDB.h"
#include "studentRec.h"
#include "listNode.h"
using namespace std;
studentDB database;
int main()
{
   string command;
   cin >> command;
   while(!cin.eof())
   {
     if(command=="new"|| command=="New")
   {
      int stuNum;
      cin>>stuNum;
      studentRecord* temp_ptr=new studentRecord;
      temp_ptr->setStudentNumber(stuNum);
      if(!database.insert(temp_ptr))
      {
         cout<<"Error: a record with student number "<<stuNum<<" already exists."<<endl;
         delete temp_ptr;
      }
   }
   else if(command=="Locate"|| command=="locate")
   {
      int stuNum;
      cin>>stuNum;
      studentRecord* temp_ptr=new studentRecord;
      if(database.retrieve(stuNum, temp_ptr))
      temp_ptr->print();
      else
      cout <<"Error: no record with student number "<<stuNum<<" exists.\n";
   }
   else if(command=="updatename"||command=="Updatename")
   {
      int stuNum;
      string lname, fname;
      cin>>stuNum>>lname>>fname;
      studentRecord* temp_ptr=new studentRecord;
      if(database.retrieve(stuNum, temp_ptr))
      {
          temp_ptr->setLastName(lname);
          temp_ptr->setFirstName(fname);
          temp_ptr->print();
          database.remove(stuNum);
          database.insert(temp_ptr);
      }
      else
      cout <<"Error: no record with student number "<<stuNum<<" exists.\n";
   }   
   else if(command=="Updatemark"||command=="updatemark")
   {
      int stuNum, idx, mark;
      cin>>stuNum>>idx>>mark;
      studentRecord* temp_ptr=new studentRecord;
      if(idx<0||idx>4)
      cout<<"Error: "<<idx<<" is out of the range 0-4.\n";
      else if(mark<0||mark>100)
      cout<<"Error: "<<mark<<" is out of the range 0-100.\n";
      else if(!database.retrieve(stuNum, temp_ptr))
      cout <<"Error: no record with student number "<<stuNum<<" exists.\n";    
      else
      {
         temp_ptr->setMark(idx, mark);
         temp_ptr->print();
         database.remove(stuNum);
         database.insert(temp_ptr);
      }
   }
   else if(command=="delete"||command=="Delete")
   {
      int stuNum;
      cin>>stuNum;
      if(!database.remove(stuNum))
      cout <<"Error: no record with student number "<<stuNum<<" exists.\n"; 
   }     
   else if(command=="printall"||command=="Printall")
   {
      if(!database.isEmpty())
      database.dump();
      else
      cout<<"Error: database is empty.\n";
   }
   else if(command=="printprobes"||command=="Printprobes")
   {
      int stuNum;
      cin>>stuNum;
      studentRecord* temp_ptr;
      if(database.retrieve(stuNum, temp_ptr))
      database.printProbes();
      else
      cout <<"Error: no record with student number "<<stuNum<<" exists.\n"; 
   }     
   else if(command=="deleteall"||command=="Deleteall")
   database.clear();
   cin>> command;
   }

   return 0;
}