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While Loop

Vaishali (2)
Hello everyone, this is my first post here and I am new to cpp. I have tried to make a program for Customers details. Initially I had a problem with while loop. I made a trick of using GOTO and LABEL, that's why the program runs smoothly. But I don't know from where did this new problem arised I can only enter the data till "Customer's purchase details", I cannot enter further detail i.e. "Enter Balance:".Because the program keeps on looping. It was working all fine after adding goto statement. I had just added "Customer's purchase details" later to the program and these are the problems I am facing. Can anyone help me in this please?

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#include "stdafx.h"
#include<iostream>
#include<fstream>
#include<cstdlib>

using std::ofstream;
using std::ifstream;


using namespace std;

class Customer_Details
{
    private:
        char cust_id[20];
        char firstName[10];
        char lastName[10];
		char purchase_details;
        float balance;
    public:
        void read_data();
        void show_data();
        void write_data();
        void search_data();
        
};

void Customer_Details::read_data()
{
	cout <<"-------------------------------------------------"<< endl;
    cout << "\nEnter ID Number: ";
    cin >> cust_id;
    cout << "Enter Customers First Name: ";
    cin >> firstName;
    cout <<"Enter Last Name: ";
    cin >> lastName;
	cout <<"Customer's purchase details:";
	cin >> purchase_details;
    cout <<"Enter Balance: ";
    cin >> balance;
    cout << endl;
	 cout <<"-------------------------------------------------"<< endl;
}

void Customer_Details::show_data()
{
	cout <<"-------------------------------------------------"<< endl;
    cout <<"Customer ID: "<< cust_id << endl;
    cout <<"First Name: "<< firstName << endl;
    cout <<"Last Name: "<< lastName << endl;
	cout <<"Purchase Details: " << purchase_details << endl;
    cout <<"Current Balance: Rs.  "<< balance << endl;
    cout <<"-------------------------------------------------"<< endl;

}

void Customer_Details::write_data()
{
	ofstream customer_file;
		customer_file.open("customerdata.txt", ios::in|ios::binary|ios::app|ios::out);
		read_data();
		customer_file.write(reinterpret_cast < char *>(this), sizeof(*this));
        customer_file.close();

		
}
       
void Customer_Details:: search_data()
{
	ifstream infile;
    infile.open("customerdata.txt", ios::binary);
    if(!infile)
    {
        cout<<"Error in Opening! File Not Found!!"<< endl;
        return;
    }
    cout<<"\n----------Data from Text file----------"<< endl;
    while(!infile.eof())
    {
        if(infile.read(reinterpret_cast<char*>(this), sizeof(*this))>0)
        {
            show_data();
        }
    }
    infile.close();
}

 

int main()
{
    Customer_Details A;
	
    LOOP:int choice = 0;
    cout<<"---------- Customer's Data from Text File----------"<<endl;

        cout<<"Select one option below ";
        cout<<"\n\t1-->Add record to file";
        cout<<"\n\t2-->Show record from file";
        cout<<"\n\t3-->Search Record from file";
        cout<<"\nEnter your choice: ";
        cin>>choice;

		while (choice)
		{
			
		switch(choice)
		{
		
		case 1: 
			A.read_data();
			goto LOOP;
			break;

		case 2:
			A.show_data();
			goto LOOP;
			break;

		case 3:
			A.write_data();
			goto LOOP;
			break;

		case 4:
			A.search_data();
			goto LOOP;
			break;

		default:
			cout << "Wrong choice. Would you like to try again?";
			goto LOOP;
		    break;
		}
		
		}
		
		
		getchar();
        return 0;
		
	}
Last edited on
coder777 (8444)
your purchase_details is just a single character. Is that intended?

Please use code tags: [code]Your code[/code]
Read this: http://www.cplusplus.com/articles/z13hAqkS/
Vaishali (2)
@coder777 Thank you it worked for me. I have now changed the PURCHASE_DETAILS to int and I enter integer as inputs.
Last edited on
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