FILE
INPUT/OUTPUT
#include
<fstream>
#include
<cstdlib>
#include
<iomanip>
#include
<iostream>
using
namespace std;
void
main()
{
float temp;
int num_temps, count = 0;
ifstream tempin;
tempin.open("a:\\temps.txt");
tempin >> num_temps;
cout << "The number of records
is: " << num_temps << endl;
cout << setiosflags
(ios::fixed|ios::showpoint) << setprecision(2);
while(count < num_temps)
{
tempin >> temp;
cout << temp << "
in faharenheit is equivalent to " << 5.0/9 * (temp - 32)
<< " celsius"
<< endl;
count++;
}
tempin.close();
}
The
number of records is: 10
34.00
in faharenheit is equivalent to 1.11 celsius
67.00
in faharenheit is equivalent to 19.44 celsius
95.00
in faharenheit is equivalent to 35.00 celsius
32.00
in faharenheit is equivalent to 0.00 celsius
212.00
in faharenheit is equivalent to 100.00 celsius
40.00
in faharenheit is equivalent to 4.44 celsius
50.00
in faharenheit is equivalent to 10.00 celsius
60.00
in faharenheit is equivalent to 15.56 celsius
70.00
in faharenheit is equivalent to 21.11 celsius
88.00
in faharenheit is equivalent to 31.11 celsius
Press
any key to continue
Data
file:
10
34
67
95
32
212
40
50
60
70
88
#include
<fstream>
#include
<cstdlib>
#include
<iomanip>
#include
<iostream>
using namespace
std;
void
main()
{
float temp;
ifstream tempin;
tempin.open("a:\\temps.txt");
cout << setiosflags
(ios::fixed|ios::showpoint) << setprecision(2);
while(!tempin.eof())
{
tempin >> temp;
cout << temp << "
in faharenheit is equivalent to " << 5.0/9 * (temp - 32)
<< " celsius"
<< endl;
}
tempin.close();
}
10.00
in faharenheit is equivalent to -12.22 celsius
34.00
in faharenheit is equivalent to 1.11 celsius
67.00
in faharenheit is equivalent to 19.44 celsius
95.00 in
faharenheit is equivalent to 35.00 celsius
32.00
in faharenheit is equivalent to 0.00 celsius
212.00
in faharenheit is equivalent to 100.00 celsius
40.00
in faharenheit is equivalent to 4.44 celsius
50.00
in faharenheit is equivalent to 10.00 celsius
60.00
in faharenheit is equivalent to 15.56 celsius
70.00
in faharenheit is equivalent to 21.11 celsius
88.00
in faharenheit is equivalent to 31.11 celsius
Press
any key to continue
Data
file
10
34
67
95
32
212
40
50
60
70
88
#include
<fstream>
#include
<cstdlib>
#include
<iomanip>
#include
<iostream>
using
namespace std;
void
main()
{
float temp;
ifstream tempin;
tempin.open("a:\\temps.txt");
if (tempin.fail())
{
cerr << "File failed to
open";
abort();
}
cout << setiosflags
(ios::fixed|ios::showpoint) << setprecision(2);
while(!tempin.eof())
{
tempin >> temp;
cout << temp << "
in faharenheit is equivalent to " << 5.0/9 * (temp - 32)
<< " celsius"
<< endl;
}
tempin.close();
}
10.00 in
faharenheit is equivalent to -12.22 celsius
34.00
in faharenheit is equivalent to 1.11 celsius
67.00
in faharenheit is equivalent to 19.44 celsius
95.00
in faharenheit is equivalent to 35.00 celsius
32.00
in faharenheit is equivalent to 0.00 celsius
212.00
in faharenheit is equivalent to 100.00 celsius
40.00
in faharenheit is equivalent to 4.44 celsius
50.00
in faharenheit is equivalent to 10.00 celsius
60.00
in faharenheit is equivalent to 15.56 celsius
70.00
in faharenheit is equivalent to 21.11 celsius
88.00
in faharenheit is equivalent to 31.11 celsius
Press
any key to continue
Data
file
10
34
67
95
32
212
40
50
60
70
88
#include
<fstream>
#include
<cstdlib>
#include
<iomanip>
#include
<iostream>
using
namespace std;
void
main()
{
float temp;
ifstream tempin;
ofstream tempout;
tempout.open("a:\\output.txt");
if (tempout.fail())
{
cerr << "File failed to
open:output.txt";
abort();
}
tempin.open("a:\\temps.txt");
if (tempin.fail())
{
cerr << "File failed to
open: temps.txt";
abort();
}
tempout << setiosflags
(ios::fixed|ios::showpoint) << setprecision(2);
while(!tempin.eof())
{
tempin >> temp;
tempout << temp <<
" in faharenheit is equivalent to " << 5.0/9 * (temp - 32)
<< " celsius"
<< endl;
}
tempin.close();
tempout.close();
}
/*Data
file
10
34
67
95
32
212
40
50
60
70
88*/
#include <fstream.h>
#include <stdlib.h>
#include <iomanip.h>
#include <iostream.h>
void
main()
{
float
temp;
ifstream
tempin;
ofstream
tempout;
tempout.open("a:\\output.txt");
if
(tempout.fail())
{
cerr
<< "File failed to open:output.txt";
abort();
}
tempin.open("a:\\temps.txt",
ios::nocreate);
if
(tempin.fail())
{
cerr
<< "File failed to open: temps.txt";
abort();
}
tempout
<< setiosflags (ios::fixed|ios::showpoint) << setprecision(2);
while(!tempin.eof())
{
tempin
>> temp;
tempout
<< temp << " in faharenheit is equivalent to " <<
5.0/9 * (temp - 32)
<<
" celsius" << endl;
}
tempin.close();
tempout.close();
}