Temperature conversion: Difference between revisions

=={{header|C++}}==

<lang cpp>

#include <iostream>

#include <iomanip>

//--------------------------------------------------------------------------------------------------

using namespace std;

//--------------------------------------------------------------------------------------------------

class converter

{

public:

converter() : KTRank( 5.0f / 9.0f ), KTC( 273.15f ), KTF( 1.8f ), KTRe( 4.0f / 5.0f ),

KTDel( 3.0f / 2.0f ), KTNew( 33.0f / 100.0f ), KTRom( 21.0f / 40.0f ) {}

void convert( float kelvien )

{

float cel = kelvien - KTC,

fah = cel * KTF + 32.0f,

rnk = kelvien / KTRank,

rea = cel * KTRe,

del = ( 100.0f - cel ) * KTDel,

net = cel * KTNew,

rom = cel * KTRom + 7.5f;

cout << endl << left

<< "TEMPERATURES:" << endl

<< "===============" << endl << setw( 13 )

<< "CELCIOS:" << cel << endl << setw( 13 )

<< "DELISLE:" << del << endl << setw( 13 )

<< "FAHRENHEIT:" << fah << endl << setw( 13 )

<< "KELVIN:" << kelvien << endl << setw( 13 )

<< "NEWTON:" << net << endl << setw( 13 )

<< "RANKINE:" << rnk << endl << setw( 13 )

<< "REAUMUR:" << rea << endl << setw( 13 )

<< "ROMER:" << rom << endl << endl << endl;

}

private:

const float KTRank, KTC, KTF, KTRe, KTDel, KTNew, KTRom;

};

//--------------------------------------------------------------------------------------------------

int main( int argc, char* argv[] )

{

converter con;

float k;

while( true )

{

cout << "Enter the temperature in Kelvin to convert: ";

cin >> k;

con.convert( k );

system( "pause" );

system( "cls" );

}

return 0;

}

//--------------------------------------------------------------------------------------------------

</lang>

Output:

<pre>

Enter the temperature in Kelvin to convert: 373.15

TEMPERATURES:

===============

CELCIOS: 100

DELISLE: 0

FAHRENHEIT: 212

KELVIN: 373.15

NEWTON: 33

RANKINE: 671.67

REAUMUR: 80

ROMER: 60

</pre>