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Java

Posted by AJ Longstreet
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AJ Longstreet
Treehouse Project Reviewer

While loop help.

Hi guys!

How would you recommend changing this to make it not output "999 Celsius is equal to 1830 Fahrenheit" as it exits?

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.io.IOException;

public class Main {
    private static int mVarC;

    public static void main(String[] args) {
        do {
            try {
                System.out.println("Please enter a Celsius Value - Enter 999 to quit");
                promptForC();
                convertToF(mVarC);
            } catch(IOException ioe) {
                System.out.println("Oops, That input is not valid");
            }
        } while(mVarC != 999);

    }

    // Prompts User for Input
    private static void promptForC() throws IOException {
        BufferedReader buffer=new BufferedReader(new InputStreamReader(System.in));
        mVarC = Integer.parseInt(buffer.readLine());
    }

    // Converts Celcius to Fahrenheit
    private static int convertToF(int arg){
        double VarF = (arg * 1.8) + 32;
        System.out.println(String.format("%d Celsius is equal to %d Fahrenheit\n",mVarC, (int) Math.round(VarF)));
        return (int) Math.round(VarF);
    }
}
AJ Longstreet
.a{fill-rule:evenodd;}techdegree seal-36
AJ Longstreet
Treehouse Project Reviewer

I fixed it with an if statement in main().

Now to work on handling exceptions from non-integer inputs....

1 Answer

Gustáv Szilárdy
Gustáv Szilárdy
3,949 Points
Gustáv Szilárdy
Gustáv Szilárdy
3,949 Points 
do {
            try {
                System.out.println("Please enter a Celsius Value - Enter 999 to quit");
                promptForC();
                if (mVarC == 999) {
                    System.out.println("Thanks!Exit.");
                    System.exit(0);
                }
                convertToF(mVarC);
            } catch(IOException ioe) {
                System.out.println("Oops, That input is not valid");
            }
        } while(mVarC != 999);