Thread: Conversions Between Celsius and Fahrenheit

Ok, I am trying to write code to convert both celsius to fahrenheit and fahrenheit to celsius. I have to use the two methods public static double celsiusToFahrenheit(double celsius) and public static fahrenheitToCelsius(double fahrenheit) in the code. I am really lost as to where I am supposed to go in my program. I will attach my program hoping someone can help me get through this. This is only my second programming class so you will have to bear with me as I am new. Thanks for the help!

//Michael Bauer Exercise 5.8
public class ConversionsBetweenCelsiusAndFahrenheit{
public static void main(String[] args){
for(double celsius=40; celsius<=31.0; celsius--){
System.out.print(celsiusToFahrenheit);
for(double fahrenheit=120; fahrenheit<=30.0; fahrenheit--){
System.out.print(fahrenheitToCelsius);
}
public static double celsiusToFahrenheit(double celsius){
double fahrenheit;
celsiusToFahrenheit=(5.0/9.0)*fahrenheit-32;
return fahrenheit;
}
public static double fahrenheitToCelsius(double fahrenheit){
double celsius;
fahrenheit=(9.0/5)*celsius+32;
return fahrenheitToCelsius;
}
}

//Michael Bauer Exercise 5.8
public class ConversionsBetweenCelsiusAndFahrenheit{
public static void main(String[] args){
for(double celsius=40; celsius<=31.0; celsius--){
System.out.print(celsiusToFahrenheit(fahrenheit));
for(double fahrenheit=120; fahrenheit<=30.0; fahrenheit--){
System.out.print(fahrenheitToCelsius(celsius));
}
public static double celsiusToFahrenheit(double celsius){
return celsius=(5.0/9.0) * fahrenheit - 32;
}
public static double fahrenheitToCelsius(double fahrenheit){
return fahrenheit=(9.0/5) * celsius + 32;
}
}
}
}

I figured out how to call on methods. When I say I need help I need all around help with the whole program. I am a junior in college and this is my second java programming class. My first one was about 6-7 months ago. I know I lack experience and knowledge! That is why I came to this website, hoping to get hopes from experiences people on how to help me complete this program. Basically I need to finish this program and be able to compile it and run it because I have one more to write tonight (that's even harder) before tomorrow.

ok here is the whole question in the book:

(Conversions between Celsius and Fahrenheit) Write a class that contains the following two methods:
//Converts from celsius to fahrenheit
public static double celsiusToFahrenheit(double celsius)

//Converts from fahrenheit to celsius
public static double fahrenheitToCelsius(double fahrenheit)

The formula for the conversion is:
fahrenheit=(9.0/5) * celsius + 32

Write a test program that invokes these two methods to display the following tables.
Celsius Fahrenheit Celsius Fahrenheit
40.0 104.0 120.0 48.89
39.0 102.2 110.0 43.33
.................................................. .......................
32.0 89.6 40.0 4.44
31.0 87.8 30.0 -1.11


This is the exact question from the book. I hope that it helps out

What I have finished so far will not compile in cmd.