data entry into a binary file

Hello, I'm writing a program where I take a prewritten text file and a. convert it into binary, b. write text to that binary file, c. display an output report and d. sort by employee name. I can do a,c and d, but I am having a hard time with b. If some one could just steer me in the right direction on where I'm going wrong in the dataEntryToBinary class I would really appreciate it. Also I am posting the text file that accompanies the program.

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
#include "stdafx.h"
#include "conio.h"
#include "string.h"
#include <iostream>
#include <fstream>
//#include <cctype> // for toupper
//#include <ctype.h>

using namespace std;

struct production_report
{
    char sEname[16];
    char sProduct[6];
    int iUnits;
    float fCost;
};

class convertToBinary
{
public:
    void convertToBinary_Start(void);

private:
    production_report data;
    fstream myFile_01;
    fstream myFile_02;

    void mainLine(void);
    void initialization(void);
    void process(void);
    void eoj(void);

};

class dataEntryToBinary
{
public:
    // Member Functions
    void dataEntryToBinary_Start(void);

private:
    // Member Data
    char *myReturn;
    production_report data;
    char ans[10];
    fstream myFile;

    // Member Functions
    void mainLine(void);
    void initialization(void);
    void process(void);
    void eoj(void);
};

void printDetail(void);


int main(void)
{
    char mySelect;

    convertToBinary cTB;
    dataEntryToBinary dETB;

    cout << "        Make Your Men Selection\n";
    cout << "  1. Conver the Text data file to Binary." << endl;
    cout << "  2. Enter data into Binary file." << endl;
    cout << "  3. Display production report." << endl;
    cout << "  4. Sort report by employee name." << endl;
    cout << "  5. End the program." << endl;
    cout << endl << "  Make your selection: ";

    mySelect = _getch();

    cout << mySelect << endl;

    while (mySelect != '5')
    {

        if (mySelect == '1')
        {
            cTB.convertToBinary_Start();
        }
        else if (mySelect == '2')
        {
            dETB.dataEntryToBinary_Start();
        }
        else if (mySelect == '3')
        {
            printDetail();
        }
        else if (mySelect == '4')
        {

        }

        cout << "        Make Your Men Selection\n";
        cout << "  1. Conver the Text data file to Binary." << endl;
        cout << "  2. Enter data into Binary file." << endl;
        cout << "  3. Display production report." << endl;
        cout << "  4. Sort report by employee name." << endl;
        cout << "  5. End the program." << endl;
        cout << endl << "  Make your selection: ";

        mySelect = _getch();

        cout << mySelect << endl;

    }

    cout << endl;
    cout << "The program has ended." << endl;

    return 0;
}

void convertToBinary::convertToBinary_Start(void)
{
    mainLine();

}

void convertToBinary::mainLine(void)
{
    initialization();

    while (myFile_01)
    {
        process();
    }

    eoj();

}

void convertToBinary::initialization(void)
{
    myFile_01.open("C:\\employeedata.txt", ios::in);

    // Make connection with new binary file

    myFile_02.open("C:\\empData.bin", ios::out | ios:: binary);

    if (!myFile_02)
    {
        cout << "Error opening file. Program aborting.\n";
        return;
    }
}

void convertToBinary::process(void)
{
    // Read data from file.

    // First read in the string.
    myFile_01.getline(data.sEname, 16, '\n');

    // Then read numbers.
    myFile_01 >> data.sProduct >> data.iUnits >> data.fCost;

    if (myFile_01)
    {
        myFile_02.write(reinterpret_cast<char *>(&data), sizeof(data));

        // Last clear the buffer of a return.
        myFile_01.get();
    }
}

void convertToBinary::eoj(void)
{
    myFile_01.close();
    myFile_02.close();
}

void dataEntryToBinary::dataEntryToBinary_Start(void)
{

    mainLine();

}

void dataEntryToBinary::mainLine(void)
{
    initialization();
    process();
    eoj();
}

void dataEntryToBinary::initialization(void)
{

    myFile.open("c:\\employeedata.bin", ios::out | ios:: binary | ios::app);
    if (!myFile)
    {
        cout << "Error opening file. Program aborting.\n";
        return;
    }


}

void dataEntryToBinary::process(void)
{
    cout << "Please enter the name of the employee" << endl;
    cin >> data.sEname;

    cout << "Product Number: ";
    cin >> data.sProduct;

    cout << "Units Produced: ";
    cin >> data.iUnits;

    cout << "Unit Cost: ";
    cin >> data.fCost;

    // Show data on screen (what was entered)
    cout << data.sEname << endl;
    cout << data.sProduct << " " << data.iUnits  << " " << data.fCost << endl;

    // Write data to a binary file.
    myFile.write(reinterpret_cast<char *>(&data), sizeof(data));


}

void dataEntryToBinary::eoj(void)
{
    myFile.close();

}


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
Kay Archer 
P9511 42 2.98
Alan Baum 
A1234 24 5.50
Marie Fitch 
C4510 36 7.94
Lee HildeBrand 
R0934 18 6.75
David Mullins 
E3371 36 3.79
Chad Nelson 
L8912 20 4.33
Bill Quinn 
S0951 48 5.65
Nicole Renner
H9733 24 4.25
Erica Tate
Z0182 27 8.10
Terry West
A3235 30 2.95
Ann Zimmerman
N4578 98 3.25
Terry Perkins
P3789 19 6.30
Last edited on
myFile.write(reinterpret_cast<char *>(&data), sizeof(data));

I doubt if the above line will work.

Edit: what is the exact problem you are having ?
Last edited on
Topic archived. No new replies allowed.