CODEWITHSUNDEEP
java
none
none

Reputation: 11

Celsius temperature table error

So, i'm supposed to display a table that gives the Fahrenheit to Celsius conversion from 94F to 104F by 0.5 increments using a for loop and a celsius method that accepts a Fahrenheit temperature as an argument. (we are just learning about methods this week) why am I getting this error? and is this code headed in the right direction?

FahrenheitToCelsius.java:28: error: cannot find symbol
                fhdeg, celdeg(fhdeg) );
                       ^
  symbol:   method celdeg(double)
  location: class FahrenheitToCelsius
  1 error

FahrenheitToSelsius.java

/* PC 5.6 - Fahrenheit to Celsius 
   -------------------------
   Programmer: xxxxxxxxxxx
   Date: xxxxxxxxxxxxxxxxx
   -------------------------
   This program will convert Fahrenheit to Celsius and display the
   results.
*/
// ---------1---------2---------3---------4---------5---------6---------7
// 1234567890123456789012345678901234567890123456789012345678901234567890

public class FahrenheitToCelsius
{
   public static void main(String[] args)
   {
      System.out.println("Temperature Conversion Table");
      System.out.println("____________________________");
      System.out.println("  Fahrenheit      Celsius  ");
   }
   public static double celsius(double fhdeg)
   {

      for (fhdeg = 0; fhdeg >=94; fhdeg+=0.5)
      {
      double celdeg = 0;
      celdeg = 5.0/9 * fhdeg-32;
      System.out.printf( "    %5.1d           %4.1d\n", 
                    fhdeg, celdeg(fhdeg) );
      }
   }
}

Upvotes: 0

Views: 600

Answers (1)

Anderson Vieira
Anderson Vieira

Reputation: 9049

The expression celdeg(fhdeg) means that you are calling a method called celdeg passing an argument called fhdeg. You get the error because there is no method called celdeg().

By the statement of the problem, though, I guess you don't need to create such method. Instead, you just need to iterate over a range of degrees in Fahrenheit and display the equivalent value in Celsius. Your for loop could be something like this:

public static void main(String[] args) {
    System.out.println("Temperature Conversion Table");
    System.out.println("____________________________");
    System.out.println("  Fahrenheit      Celsius  ");

    // From 94F to 104F, with increments of 0.5F
    for (double fhdeg = 94.0; fhdeg < 104.5; fhdeg += 0.5) {
        // Calculate degree in Celsius by calling the celsiusFromFahrenheit method
        double celdeg = celsiusFromFahrenheit(fhdeg);
        // Display degrees in Fahrenheit and in Celsius
        System.out.printf( "    %.2f           %.2f\n", fhdeg, celdeg);
    }
}

static double celsiusFromFahrenheit(double fhdeg) {
    return (5. / 9.) * fhdeg - 32;
}

Upvotes: 1

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