Thread: Two Problems

Hello Everyone...

This is my first post here... I'm new to C++ and I have a home work program that has me confused.


My first problem is my program just hangs.. I can type in the file name and then it hangs.. If I do put in the incorrect name it traps the error. I know my program is pretty screwed up. I worked on this all day yesterday.

Secondly, I need to use a class? How can I create a class out of this program? (classes totally confuse me)

Thanks for your help...

Code:

#include  <iostream>                         
#include  <iomanip>                                          // for set precision 
#include  <fstream>                                          // for file i/o 
#include  <string> 
#include  <istream> 

using namespace std; 



//*****  Main Program ***** 

int main () 

{ 


//***** Variable and Const Declaration *****//    
         string      FirstName; 
         string       LastName; 
         float        PersonalIncome; 
         ifstream   IncFile; 
         string       FileName; 
         float       FamilyIncome; 
         int         FamilyMembers; 
         float      AGI; 
         float      TaxRate; 
         //float      TaxAmount; 
         string      FamilyName; 
    const   float      Deduction  =  5000.00; 
    const   float      MaxIncome  = 60000.00;             
    

   cout    <<fixed<<showpoint           // Set floating point; 
       <<setprecision(2);              // Set up output format 



    
//***** File Name Input and Read *****// 

cout << "Name of the File to read: "; 
cin  >> FileName; 
IncFile.open(FileName.c_str());      //opens the input file 
if (!IncFile)    
 { 
   cout << "***** Can't open input file *****" << endl; 
   return 1;    
 };    
  
     
    
  
  //***** Intilization of variables *****// 
  
  FirstName           =  " "; 
  LastName            =  " "; 
  FamilyName           =   " "; 
  PersonalIncome        =  0.00; 
  FamilyIncome          =  0.00; 
  FamilyMembers          =  1   ; 
  AGI                =  0.00; 
  
  

IncFile >> LastName >> FirstName >> PersonalIncome; 


while(IncFile) 
  
     { 
            
     getline(cin,LastName); 
     getline(cin,FirstName); 
     cin >> PersonalIncome; 
         
                        
      
     if (LastName==FamilyName) 
     {      
                       FamilyIncome=FamilyIncome + PersonalIncome;             FamilyMembers++;                                 } 
            
     else       
     AGI = FamilyIncome - (Deduction * FamilyMembers); 
           if (FamilyIncome < MaxIncome) 
              {TaxRate = (AGI/100000); }    
               
         else 
           {TaxRate = (AGI * .50);};                        
           cout << LastName << setw(2) << TaxRate; 
           cout << endl; 
            
                       FamilyName = LastName;   //reset variables 
                       FamilyIncome        =  0.00; 
            FamilyMembers        =  1   ; 
            AGI                =  0.00; 
                 
    } 
     

return 0; 
};

Thanks...

I wasn't sure if my file is getting read correctly...?

I really don't have a choice(regarding classes)... involved in a class.. no pun intended

Thanks for your help...

OK... Got it working... Now.. I know I did this backwards.. but I need to create a class and use it with this program......

Thanks for yourt help...


Here is my code...

Code:

#include  <iostream>                          
#include  <iomanip>                                          // for set precision 
#include  <fstream>                                          // for file i/o 
#include  <string> 
#include  <istream> 
#include  <console.h>

using namespace std; 



//*****  Main Program ***** 

int main() 
{        
    int			index;
	int			count;
	int         FamilyMembers;
    
    string      FirstName[50]; 
    string      LastName[50]; 
    string      FileName;
    string      FamilyName; 
   
    ifstream    IncFile; 
     
    float       FamilyIncome; 
    float       AGI; 
    float       TaxRate;  
    float		FamilyTax;
    float       PersonalIncome[50]; 
    
    const float Deduction = 5000.00; 
    const float MaxIncome = 60000.00;      
	

   cout << fixed << showpoint << setprecision(2);														//set output format              

   cout << "Input file name: "; 													
   cin  >> FileName;																									// Get file name and location 
   IncFile.open(FileName.c_str());      																				// Opens the input file 
   if (!IncFile)    
    { 
      cout << "***** Can't open input file *****" << endl; 
      
      return 1;    
    }
   
 //clrscr();   
 count=0;  

while(IncFile) 																											//Read file
  { 
    IncFile >> LastName[count] >> FirstName[count] >> PersonalIncome[count];
    IncFile.ignore (100,'\n');
    count++;
    
  }
   
   
       
 
 FamilyMembers=1;																										//Set variables to first record
 FamilyIncome=PersonalIncome[0];
 FamilyName=LastName[0];
 
cout << setw(10) << "Family" << setw(20) << "Total Income" << setw(20) << "AGI" << setw(20) <<  "Tax Due";				// Output headers
cout << endl << endl;


       
 for (index=1; index < count; index++)   		    
    
   { 
	  if (LastName[index-1] == LastName[index]) 
       { 
         FamilyIncome=FamilyIncome + PersonalIncome[index]; 
         FamilyMembers++; 
       } 
   	  else        																						        																								
      {
        AGI = FamilyIncome - (Deduction * FamilyMembers); 																//Calculate adjusted gross income
        
            if (FamilyIncome < MaxIncome) 
              { 
               TaxRate = (AGI/100000); 																					// Calculate tax rate for under $100,000
              }                
             else 
                {    
                 TaxRate = (AGI * .50); 																				//Calculate tax rate for over $100,000
                };                        	
        
       
       FamilyTax = FamilyIncome * TaxRate;																				// Calculate Family Tax		
        if  (FamilyTax <= 0)
        	{
        	 FamilyTax = 0;
        	};  															
       
       cout << setw (10) <<  FamilyName << setw(20) << FamilyIncome <<  setw(20) << AGI << setw(20) << FamilyTax;		//Output  
       cout << endl; 
      
       TaxRate=0.00;																									//Set data for next family
       FamilyMembers=1;
       FamilyIncome=PersonalIncome[index];     
       FamilyName=LastName[index];       
    
      } 
	   
    
          
   } 	
 
  
return 0;  
}

The following variables suggest that a class called FamilyMember might be useful:

string FirstName[50];
string LastName[50];
string FileName;
string FamilyName;
float FamilyIncome;
float PersonalIncome[50];

Then to allow you to do something with that data you could have a methods called CalculateFamilyTax() and displayResults() or something else, since that seems to be the primary purpose of the gathering the above data.