For Loop Issue and Output Layout Problem

[Prosdo]

Hi everyone. I am very new to C++ and taking a class. (don't laugh too hard at me lol) I have a program due on Monday and I ran into a wall. The programs calls for us to make mailing labels. They must be in this format:

Michael Smith
555 Lincoln Way
Philadelphia, PA 24211
Box 1 of 5

The odd labels must be on the left and the even on the right they should be sent to the output file in the layout

LABEL1 LABEL 2
LABEL 3 LABEL 4
LABEL 5

So I need them to enter the number of boxes and it should count up to the number they need. I figured for that I would need something like number = number + 1. We can use loops, but I am not to sure with those. Here is the code I have so far:

Quote:
#include <iostream.h>
#include <stdlib.h>
#include <cstring>
#include <string>
#include <fstream>

using namespace std;
string name; // Is the name for the mailing labels
string address; // Is the address for the mailing labels
string zip; // Is the zipcode for the mailing labels
string state; // Is the state for the mailing labels
string city; // Is the city for the mailing labels
int number_of_boxes; // Number of labels neeeded
int box_number; //Current Label
ofstream mailing_labels;

int main()
{
mailing_labels.open("D:\\mailing_labels.dat");

cout <<"Please enter the name of the person you are shipping these items to: " <<'\n'; //Asks for the name
cin >> name; //Accepts the name
cout <<"Please enter the street address you are shipping to: "<<'\n'; //Asks for the street address
cin >> address; //Accepts the street address
cout <<"Please enter the city you are shipping to: "<<'\n'; //Asks for the city
cin >> city; //Accepts the city
cout <<"Please enter the two letter abbreviation of the state you are shipping to: "<<'\n'; //Asks for the state
cin >> state; //Accepts the state
cout <<"Please enter the zip code you are shipping to: "<<'\n'; //Asks for the zip code
cin >> zip; //Accepts the zip code
cout <<"How many boxes are you shipping? "<<'\n'; //Asks for number of boxes
cin >> number_of_boxes; //Accepts number of boxes



system("PAUSE");
return 0;
}

My teacher said I would need the modulus operator to split the sides of the mailing list? Can anyone help? Also I wanted to use a for loop, but I am kind of confused on how to format it? Thanks guys. Any help would be SO greatly appreciated.

[Amahdy]

cout<<"ENTER NUMBER OF BOXES: ";
cin>>bCount;
for(...;i<bCount;i++){
//and put the body here ...
//write resived data to the file also at the end of each iteration .
}

[Prosdo]

I figured it out. It was suppose to be mailing_labels.setf(ios::left);. I have the bulk of the program working. The only thing I am having trouble with is getting it to print in two columns. Like
BOX 1 BOX 2
BOX 3 BOX 4
BOX 5

#include <iostream.h>
#include <stdlib.h>
#include <string>
#include <fstream>
#include <iomanip>

using namespace std;
char name[40];                  // Is the name for the mailing labels
char street_address[40];        // Is the address for the mailing labels
string zip;                     // Is the zipcode for the mailing labels
string state;                   // Is the state for the mailing labels
char city[20];                  // Is the city for the mailing labels
int number_of_boxes;            // Number of labels neeeded
int box_number;                 //Current Label
ofstream mailing_labels;        //Defines outfile

int main()
{
mailing_labels.open("C:\\Documents and Settings\\All Users\\Desktop\\mailing_labels.dat");            //Opens the file
mailing_labels<<setw(40)<<" "<<setw(40)<<" "<<'\n'<<'\n';                                             //Breaks the page into two columns                                                                       //Accepts number of boxes
cout <<"Please enter the name of the person you are shipping these items to: " <<'\n';                //Asks for the name
cin.getline(name, 40);                                                                                //Accepts the name
cout <<"Please enter the street address you are shipping to: "<<'\n';                                 //Asks for the street address
cin.getline(street_address, 40);                                                                      //Accepts the street address
cout <<"Please enter the city you are shipping to: "<<'\n';                                           //Asks for the city
cin.getline(city, 20);                                                                                //Accepts the city
cout <<"Please enter the two letter abbreviation of the state you are shipping to: "<<'\n';           //Asks for the state
cin >> state;                                                                                         //Accepts the state
cout <<"Please enter the five digit zip code you are shipping to: "<<'\n';                            //Asks for the zip code
cin >> zip;                                                                                           //Accepts the zip code
cout <<"How many boxes are you shipping? "<<'\n';                                                     //Asks for number of boxes
cin >> number_of_boxes;                                                                               //Accepts number of boxes
for(box_number=1;box_number <=number_of_boxes;box_number ++)                                          //Loop
{

if(box_number % 2 > 0)
mailing_labels.setf(ios::left);
if(box_number % 2 < 1)
mailing_labels.setf(ios::right);
mailing_labels<<setw(40)<<name<<'\n';                                                                 //Prints the Name
mailing_labels<<setw(40)<<street_address<<'\n';                                                       //Prints the street address
mailing_labels<<setw(25)<<city<<setw(2)<<", "<<setw(2)<<state<<setw(2)<<", "<<setw(5)<<zip<<'\n';     //Prints the city,state, and zip
mailing_labels<<setw(4)<<"Box "<<setw(2)<<box_number<<setw(4)<<" of "<<setw(2)<<number_of_boxes<<'\n'<<'\n';   //Box # of #
mailing_labels.unsetf(ios::left);
mailing_labels.unsetf(ios::right);
}
mailing_labels.close();                                                                               //Closes the file

      system("PAUSE");
      return 0;
}

It somewhat works but the labels don't move much. Something still is wrong.

[Amahdy]

it's very hard to return back and print in a colum next to the first one,
So print twice boxes in each loop iteration ...
like:
out<<setw(40)<<address1<<setw(40)<<address2;
out<< //left box then right box and so on
and check if they r odd number to not print anything in the right at the last iteration or a null strings for example, i.e. if they r odd add another null values to be even. and of course the loop iteration numbers will be the half.

hope this can helps...

BTW: the loop shouldn't include the data entry from the user ?