Question

C++ Fahrenheit to Celsius Tables

Write a program that first asks the user which Temperature scale conversion he/she would like to perform:

1. Convert F to C

2. Convert C to F

3. Quit What is your choice?

Then it asks the user for input for three real number variables: start_temp, end_temp, temp_incr. It will then produce a two column Fahrenheit to Celsius table or a two column Celsius to Fahrenheit table, depending on the choice. For choice 1, the first column should be labeled Fahrenheit and the first value the Fahrenheit column is start_temp. The second column should be labeled Celsius, and its value is calculated from the values in the Fahrenheit column using the formula C = (5.0/9.0)*(F – 32.0). For choice 2, the table will show the Celsius column first, Fahrenheit column second, and use the formula F = 9.0/5.0 * C + 32.0 The values for the temps in the first column will be incremented by temp_incr, and end when the table value would exceed the end_temp value. Display all values with 2 decimal of accuracy, justified and aligned.

Requirements:

1)    A detailed algorithm
2)    Verify all numeric data are acceptable and not character
3)    Follow all good programming practices such as descriptive variable names, constants names, proper indentation,...
4)    Verify input for correct range and type ( not character)
5)    Output should be the same as the sample shown below, I used 30 ‘–‘ for the underlining of heading.

Sample Output

Output Sample: 

Choose a conversion type: 
        1. Convert F to C
        2. Convert C to F
        3. Quit

            What is your choice?  1

Enter starting value:         29 
Enter ending value:        32
Enter increment value:    0.5

Fahrenheit           Celsius 
29.00               -1.67
29.50               -1.39
30.00               -1.11
30.50               -0.83
31.00               -0.56
31.50               -0.28
32.00                0.00

Choose a conversion type:
             1. Convert F to C
             2. Convert C to F
             3. Quit

              What is your choice?  4

Invalid choice. Try again.

Choose a conversion type:
             1. Convert F to C
             2. Convert C to F
             3. Quit

              What is your choice?  2

Enter starting value:        35
Enter ending value:            32
Enter increment value:    -1

Celsius         Fahrenheit   
35.00        95.00
34.00        93.20
33.00        91.40
32.00        89.60

Choose a conversion type:
             1. Convert F to C
             2. Convert C to F
             3. Quit

              What is your choice?  2

Enter starting value (integer number):     35
Enter ending value (integer number):     32
Enter increment value (real number):    1

Invalid range. Try again.

Choose a conversion type:
               1. Convert F to C
               2. Convert C to F
               3. Quit

               What is your choice?  3

Thank you for your using my program. Program terminated.

Answer 1

Program for Temperature Conversion :

1. From Celsius to Fahrenheit

2. From Fahrenheit to Celsius

3. To Exit

#include<iostream>
using namespace std;
int main()
{
  int a;
  cout<<"1. For Celsius To Fahrenheit. \n";
  cout<<"2. For Fahrenheit To Celsius. \n";
  cout<<"3. For Exit\n\n";
  cout<<"Enter Your Choice \n ";
  cin>>a;
  switch(a)
   { 
    double cel,feh;
    case 1: cout<<"Enter The Temperature In Celsius\n";
      cin>>cel;
      feh=(cel*9/5)+32;
      cout<<"\nTemperature In Fahrenheit Is = "<<feh ;
    break;
   
   case 2: cout<<"Enter The Temperature In Fahrenheit\n";
      cin>>feh;
      cel=(feh-32)*5/9;
      cout<<"\nTemperature In Celsius Is = "<<cel ;
    break;
      
   case 3:exit(0);
   
   default:cout<<"\nEnter The Right Choice \n";
    break;     
   }
}