Fahrenheit – Celsius C Program

Program 1

Fahrenheit – Celsius C Program Using ‘While’ Loop

/*---------- Fahrenheit - Celsius C Program Using While Loop--------*/
#include
main(){
	int fahr, celsius;
	int lower, upper, step;
	lower = 0;   // lower limit of temperature table
	upper = 300; // upper limit
	step  = 20;  // step size
	clrscr();
	fahr  = lower;
	printf("\n");
	printf("\tFahrenheit\tCelsius\n");
	while (fahr <= upper)
	{
		celsius = 5 * (fahr - 32 ) / 9;
		printf("\t%d\t\t%d\n", fahr, celsius);
		fahr = fahr + step;
	}

getch();
return;
}

Program 2

Fahrenheit - Celsius C Program Using 'For' Loop

/*---------- Fahrenheit - Celsius C Program Using For Loop--------*/
#include
main(){
	int fahr;
	printf("\tFahrenheit\tCelsius\n");
	for( fahr=0; fahr<= 300; fahr=fahr+20)
	{
		printf("%3d %6.1f\n", fahr, (5.0/9.0) * (fahr-32));
	}
getch();
return;
}

Program 3

Fahrenheit - Celsius C Program Using for And symbolic define

/*---------- Fahrenheit - Celsius C Program Using 'For' And symbolic 'define'--------*/
#include

#define LOWER 0
#define UPPER 300
#define STEP 20
main(){
	int fahr;
	printf("\tFahrenheit\tCelsius\n");
	for( fahr=LOWER; fahr<= UPPER; fahr=fahr+STEP)
	{
		printf("%3d %6.1f\n", fahr, (5.0/9.0) * (fahr-32));
	}
getch();
return;
}

Output

Fahrenheit - Celsius C Program