Java Programming for Beginners

Celsius type

We're going to use Celsius as our first point of conversion in all cases, so if our user has inputted a Celsius value, we can just go ahead and break out of this case because the value of inputValue is already OK with us:

switch(inputType) 
{ 
    case 'F': 
    case 'C': 
        break; 
    case 'K': 
        default: 
            System.exit(1); 

What if the user has given us a Fahrenheit value? Well, let's scroll to the top of the code; you'll see that we have an explicit conversion from Fahrenheit to Celsius:

// F to C: ((t-32.0f)*5.0f)/9.0f 
// C to K: t+273.15f 
// K to F: (((t-273.15f)*9.0f)/5.0f)+32.0f 

We can take the preceding block of code, which I've made pretty Java-friendly, and just change the value of this input variable to the conversion statement run on its ...