CODEWITHSUNDEEP
c
Mickey Jang
Mickey Jang

Reputation: 11

Meters to centimeters conversion program in C Language

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

char userInput;

int centimeter;
int meter;

float centimeterFloat = 0.0;
float meterFloat = 0.0;

printf("Enter c for centimeter to meter OR m for meter to centimeter:  ");
userInput = getchar();
//If the user types in 'm' or 'M' the progrsm will ask you to type in the length in meters and it will converts to centimeters.

if (userInput == 'M')
    userInput = 'm';
if (userInput == 'm')
{
//This calculation is to convert meters to centimeters.
    printf("\nEnter the length in meter:  ");
    scanf("%d", &meter);
    centimeterFloat
    = (meter * 100);
    printf("\nmeter\tcentimeter\n");
    printf("%d\t\t\t%4.0f\n", meter, centimeterFloat);
}
//If the user types in 'c' or 'C' the program will ask you to type in the length in centimeters and it will converts to meters.
if (userInput == 'C')
    userInput = 'c';
else if (userInput == 'c')
{
    printf("\nEnter the length in centimeter:  ");
    scanf("%d", &centimeter);
//This calculation is to convert centimeters to meters.
    meterFloat = (centimeter * 1/100);
    printf("\nmeter\tcentimeter\n");
    printf("%3.1f\t\t\t%d\n", meterFloat, centimeter);
}


return 0;
}

This is my code but when I put my input as decimals, the output does not come out properly please help and if I put 10cm the results of meters does not come out as decimal but 0 and one more question, how to make an exception handling program with if else statement? please help me thank you so much

Upvotes: 0

Views: 5702

Answers (3)

Ferruccio
Ferruccio

Reputation: 100638

Change:

meterFloat = (centimeter * 1/100);

to:

meterFloat = (centimeter * 1.0/100);

centimeter, 1 and 100 are all ints, resulting in integer multiplication and division. Using integer division, centimeter/100 is likely to be 0, unless centimeter > 100.

Upvotes: 2

Andrew_CS
Andrew_CS

Reputation: 2562

One problem that I see is with your if, else if structure.

//If the user types in 'c' or 'C' the program will ask you to type in the length in centimeters and it will converts to meters.
if (userInput == 'C')
    userInput = 'c';
else if (userInput == 'c'){
    printf("\nEnter the length in centimeter:  ");
    ...
}

If the user enters 'C' the program sets the userInput, but then it won't get inside of the else if. You could change the else if to an if.

if (userInput == 'C')
    userInput = 'c';
if (userInput == 'c'){
    printf("\nEnter the length in centimeter:  ");
    ...
}

Upvotes: 2

haccks
haccks

Reputation: 105992

Change 

int centimeter;
int meter;

to 

float centimeter;
float meter;

and %d to %f in scanf to input as decimal, because you are storing your input in meter and centimeter

Upvotes: 1

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