// file object declarations
ifstream myInputFile;
ofstream myOutputFile;

// Using the open( ) member function, the following stmt. associates
// the stream variable myInputFile (logical name) with the file NAMELIST.DAT (physical name)
// on drive D: of the computer's hard drive.

myInputFile.open("D:\\NAMELIST.DAT");

// From this point on in the program, the logical name should be used
// to refer to the input stream

// Using the open( ) member function again, the following stmt. associates
// the stream variable myOutputFile (logical name) with the file SUMMARY.RPT (physical name)
// on drive D: of the computer's hard dive.

myOutputFile.open("D:\\SUMMARY.RPT");

ifstream myInputFile;
myInputFile.open("C:\\DATA.DAT");

if (!myInputFile)
    cerr << "Error opening file: " << "C:\\DATA.DAT";
else
    .
    .
    use file
    .
    .

//////////////////////////////// USING DEV C/C++ V.4 COMPILER //////////////////////////////////////////////

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

const int MAXNAMELEN = 31;
const int MAXFILELEN = 81;

int main ( )
{
    int hours, qualityPoints;
    float gpa;
    char studentName[MAXNAMELEN], fileName[MAXFILELEN];
    ifstream gradeFile;

    cout << endl << endl << endl;
    cout << "Enter full path of grade file: ";
    cin >> fileName;
    cout << endl << endl;

    gradeFile.open ( fileName );
    if ( !gradeFile )
    {
            cerr << endl << "Error opening file: " << fileName << endl;
            cout << endl << "Program will be terminated" << endl;
            system ( "PAUSE" );
            exit(EXIT_FAILURE);
    }

    while ( !gradeFile.eof ( ) )
    {
            gradeFile.get ( studentName, MAXNAMELEN );
            gradeFile >> hours >> qualityPoints >> ws;
            gpa = float ( qualityPoints ) / hours;
            cout << studentName << "     " << hours
                  << "     " << qualityPoints << "     " << gpa << endl;
    }

    gradeFile.close( );
    system("PAUSE");
    return EXIT_SUCCESS;
}

//////////////////////////////// USING DEV C/C++ V.4 COMPILER //////////////////////////////////////////////

////////////////////////////// USING DEV C/C++ V.4 COMPILER ///////////////////////////////////////

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

const int MAXFILELEN = 80;

void appendFile(char* filename1, char* filename2, char* filename3);

int main()
{
      char filename1[MAXFILELEN], filename2[MAXFILELEN], filename3[MAXFILELEN];

      cout << "Enter full path of first file: ";
      cin >> filename1;
      cout << "Enter full path of second file (to be appended to the end of "
            << filename1 << " ): ";
      cin >> filename2;
      cout << "Enter full path of file which will contain the appended files: ";
      cin >> filename3;

      appendFile(filename1, filename2, filename3);

      cout << endl
            << "The files were successfully appended to [" << filename3 << "]"
            << endl << endl;

      system("PAUSE");
      return EXIT_SUCCESS;
}// end main();

void appendFile(char* filename1, char* filename2, char* filename3)
{
      char ch;
      ifstream file1, file2;
      ofstream file3;

      file1.open(filename1);

      if (!file1)
      {
            cout << "Error opening file: " << filename1 << endl;
            exit(EXIT_FAILURE);
      }

      file2.open(filename2);

      if (!file2)
      {
            cout << "Error opening file: " << filename2 << endl;
            exit(EXIT_FAILURE);
      }

      file3.open(filename3);

      while (file1.get(ch))
            file3.put(ch);

      file1.close();

      while (file2.get(ch))
            file3.put(ch);

      file2.close();
      file3.close();

}// end appendFile()

////////////////////////////// USING DEV C/C++ V.4 COMPILER ///////////////////////////////////////

#include <iostream.h>
#include <stdlib.h>

int main()
{
      int count = 0, k = 0;
      char mixedString[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";

      while ( mixedString[k] != '\0' ) // '\0' is the null terminator
      {
            if ( mixedString[k] == 'A' || mixedString[k] == 'a' ||
                 mixedString[k] == 'E' || mixedString[k] == 'e' ||
                 mixedString[k] == 'I' || mixedString[k] == 'i' ||
                 mixedString[k] == 'O' || mixedString[k] == 'o' ||
                 mixedString[k] == 'U' || mixedString[k] == 'u' )
            count++;
            k++;
      }

      cout << "The number of vowels contained in [" << mixedString << "] is: " << count << endl << endl;

      system("PAUSE");
      return EXIT_SUCCESS;
}

#include <iostream.h>
#include <stdlib.h>

int main()
{
      int subscript = 0;
      char string1[] = "PROGRAMMING,IN,C++";

      while ( string1[subscript] != '\0' )
      {
            if ( string1[subscript] == ',' )
                 string1[subscript] = ';';
            subscript++;
      }

      cout << string1 << endl << endl;

      system("PAUSE");
      return EXIT_SUCCESS;
}

//////////////////////////////// USING DEV C/C++ V.4 COMPILER ////////////////////////////////

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

const int MAXSTRINGLEN = 25;
const int MAXFLUSH = 80;

int countVowels(char str[]);
void commaToAsterisk(char str[]);

int main()
{
      char myString[MAXSTRINGLEN], myString2[MAXSTRINGLEN];
      int numberVowels, k = 0;

      cout << endl << "Enter a string to be evaluated [vowels will be summed]: ";
      cin.get(myString, MAXSTRINGLEN);
      cin.ignore(MAXFLUSH, '\n');

      cout << endl
            << "Enter a second string to be evaluated [commas will be changed to asterisks]: ";
      cin.get(myString2, MAXSTRINGLEN);
      cin.ignore(MAXFLUSH, '\n');

      numberVowels = countVowels(myString);
      commaToAsterisk(myString2);

      cout << endl << endl;
      cout << "The number of vowels in [" << myString << "] is " << numberVowels;
      cout << endl << endl;
      cout << "Your updated second string: " << myString2;
      cout << endl << endl;

      system("PAUSE");
      return EXIT_SUCCESS;
}// end of main()

int countVowels(char str[])
{
      int count = 0, k = 0;

      while (str[k] != '\0')
      {
            if (str[k] == 'a' || str[k] == 'A' || str[k] == 'e' || str[k] == 'E'
                  || str[k] == 'i' || str[k] == 'I' || str[k] == 'o'
                  || str[k] == 'O' || str[k] == 'u' || str[k] == 'U')
                count++;
            k++;
      }// end while

      return count;
}// end countVowels

void commaToAsterisk(char str[])
{
      int subscript = 0;

      while (str[subscript] != '\0')
      {
            if (str[subscript] == ',')
                  str[subscript] = '*';
            subscript++;
      }

}// end commaToAsterisk()

//////////////////////////////// USING DEV C/C++ V.4 COMPILER ////////////////////////////////

    srand((unsigned)time(NULL));

    for (int k = 0; k < 50; k++)
        intArr[k] = rand() % 221 - 110;

	const int nameLen = 40;

    cout << "Enter full name: ";
    cin.get(fullName, nameLen);

    .
    .
    .
    while ( gradeFile.peek( ) != ' \n ' )
    {
            .
            .
            .

    .
    .
    .
    while ( !gradeFile.eof() )
    {
            .
            .
            .

////////////////////////////////////////// USING DEV C/C++ V.4 COMPILER ////////////////////////////////////////////

// PURPOSE: This program uses an input stream file to read data from a specified
//          file and will display the name, # of credit hours, # quality points,
//          and the gpa of each student in the file. The input file is formatted
//          as follows:
//                LINES 1-30: Student Name
//                LINES 31-33: Credits Attempted
//                LINES 34-36: Quality Points Earned
//                LINES 37-END: HONORS Character Symbol
//
//          DATA FILE USED FOR EXAMPLE: [C:\DATAFILES\DATA.DAT]
//
// PROGRAMMER: Mike Ware
// DATE LAST UPDATED:

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

const int NAMELEN = 31;
const int FILENAMELEN = 81;
const int FLUSHLEN = 80;

int main()
{
      int hours, qualityPoints;
      float gpa;
      char honorsSymbol, studentName[NAMELEN], fileName[FILENAMELEN], userName[NAMELEN];
      ifstream gradeFile;

      // set output formatters
      cout << setiosflags(ios:: showpoint | ios::fixed);
      cout << setprecision(2);

      // get user name
      cout << "Before using program, please tell me your full name: ";
      cin.get(userName, NAMELEN);
      cin.ignore(FLUSHLEN, '\n');

      // get input file from user
      cout << endl << "Enter full path of grade file: ";
      cin >> fileName;
      cout << endl << endl;

      // open and verify specified input file
      gradeFile.open(fileName);

      if (!gradeFile)
      {
            cout << endl << "Error opening file: " << fileName << endl;
            exit(EXIT_FAILURE);
      }

      // process file and display results
      while (!gradeFile.eof())
      {
            gradeFile.get(studentName, NAMELEN);
            gradeFile >> hours >> qualityPoints >> honorsSymbol;
            gradeFile >> ws;
            gpa = float(qualityPoints) / hours;
            cout << studentName
                  << "   " << hours
                  << "   " << qualityPoints
                  << "   " << honorsSymbol
                  << "   " << gpa;
            cout << endl;
      }

      cout << endl << "Thanks, " << userName << " for using my capabilites!";

      // close specified input file
      gradeFile.close();

      cout << endl << endl << endl;

      system("PAUSE");
      return EXIT_SUCCESS;
}

////////////////////////////////////////// USING DEV C/C++ V.4 COMPILER ////////////////////////////////////////////