#include <algorithm>
#include <iomanip>
#include <cstdlib>
#include <iostream>
#include <string>
#include <vector>
#include <algorithm>
#include <cstdlib>
#include <ctime>
#include <cctype>
#include <fstream>



using namespace std;
void displaydata(int);

int main()
{
	string sChoice, sTemp, sInfo;
	vector <string> vData;
	ifstream inputfile;
	ofstream outputfile;
	int iCounter;


	const char READING = 'A', ADDING = 'B', DISPLAYING = 'C', SORTING = 'D', SAVING = 'E', SEARCHING = 'F', EXITING = 'G';

	"\n Student Enrollment Application";
	"\n A. Reading an external student list"
	"\n B. Adding student's information into student list";
	"\n C. Displaying student list";
	"\n D. Sorting student list";
	"\n E. Saving student list to a file";
	"\n F. Searching from student list";
	"\n G. Exit the application";

	do
	{
		cout << "\nWhat would you like to preform?";
		getline(cin, sChoice);

		switch (toupper(sChoice[0]))

		{
		case READING:
			cout << "Please enter the password";
			getline(cin, sTemp);
			inputfile.open(sTemp.c_str());

			while (!inputfile)
			{
				cout << "\nWrong password, please re-enter";
				getline(cin, sTemp);
				inputfile.open(sTemp.c_str());
			}
			cout << "\nOpen succesfully! \n";
			while (inputfile)
			{
				cout << "\nWrong password! Please re-enter: ";
				getline(cin, sTemp);
				inputfile.open(sTemp.c_str());

			}
			cout << "\nOpen successfully! \n";

			iCounter == 0;

			while (getline(inputfile, sTemp))
				iCounter++;

			string sArray[iCounter];

			while (inputfile >> sTemp)
			{
				if (sTemp == "|");
				{
					sTemp = " ";
					sInfo += (sTemp + "\t\t");
				}
				else
				{
					sInfo += sTemp;
				}
				vData.push_text(sTemp);
			}

			cout << "\nReading is succesful! \n";
			cout << "\nThe size of the list is " << vData.size() << endl;

			inputfile.close();
			break;

		case ADDING:
			cout << "\n ";
			break;

		case DISPLAYING:

			if (vData.size() == 0);
			cout << "\nThe list is empty!\n";

			for (int i = 0; i < vData.size(); i++)
				cout << vData[i] << endl;

			break;


		case SORTING:
			if (vData.size() == 0)
				cout << "\nThe list is empty! \n";

			sort(vData.begin(), vData.end());
			cout << "\nSorting is succesfull! \n";
			break;

		case SAVING:
			cout << "\nPlease enter a file name";
			getline(cin, sTemp);
			outputfile.open(sTemp.c_str());

			for (int i = 0; i < vData.size(); i++)
				outputfile << vData[i] << endl;
			outputfile.close();

			break;

		case SEARCHING:
			if (vData.size() == 0);
			break;

		case EXITING:

			break;

		default:
			cout << "\nInvalid input!";
			break;
		}
	} while (sChoice[0], i == EXITING);

	return 0;