Thread: help w/ conversion of degrees(CtoF, FtoC)

here is what we're supposed to do
This assignment is a Celsius to Fahrenheit and Fahrenheit to Celsius temperature conversion program.

Write a class that contains the following two methods ( class will have a total of 3 methods ):
public static double celtofahr ( double celsius)
and public static double fahrtocel ( double fahrenheit )

main should prompt the user for a celsius, call / use the celtofahr method to do the conversion, next display the result to the user. Next, prompt the user for a Fahrenheit, call / use the fahrtocel method to do the conversion, next display the result to the user.

Note : the formula for conversion is
fahrenheit = ( ( 9.0 / 5.0 ) * celsius ) + 32

WHERE DO I PUT THE STRING TO PROMPT THE USER TO ENTER EACH DEGREE?

here is my code

public class Assign8_Roberts{
 
	private double fahrenheit;
	private double celsius;
	private String displayString;
 
	public Assign8_Roberts (double Fahrenheit, double Celsius)
	{
		this.fahrenheit = Fahrenheit;
		this.celsius = Celsius;
	}
 
	public double GetFahrenheitTemp()
	{
		return this.fahrenheit;
	}
 
	public double FahrtoCel(double fahrenheit)
	{
		double result = (fahrenheit - 32)/1.8;
		return result;
	}
 
	public double GetCelsiusTemp()
	{
		return this.celsius;
	}
 
	public void FahrenheitTemp(double fahrenheitVal)
	{
		this.fahrenheit = fahrenheitVal;
	}
 
	public double CeltoFahr(double celsius)
	{
		double result = (1.8 * celsius) + 32;
		return result;
	}
 
	public void CelsiusTemp(double celsiusVal)
	{
	   this.celsius  = celsiusVal;
	}
 
}

you need a main class to execute and get user input

add the following under your Assign8_Roberts constructor
void main(String[] args)
{
Scanner scan = new Scanner(System.in);
System.out.println("Enter a value: ");

float f = scan.nextFloat();

//use f as input to your methods
}

Hope it helps

WHERE DO I PUT THE STRING TO PROMPT THE USER TO ENTER EACH DEGREE?

Don't shout.

The assignment tells you.

main should prompt the user for a celsius, ... Next, prompt the user for a Fahrenheit

db

Cross posted
help w/ conversion of degrees(CtoF, FtoC) - Java Forums

db

Originally Posted by Darryl.Burke

Cross posted
help w/ conversion of degrees(CtoF, FtoC) - Java Forums

db

PLEASE STOP THIS. SOMETIMES PEOPLE DO THIS JUST BECAUSE THEY HAVE DEADLINES AND DAYS GO BY WITH NO RESPONSE. I'VE BEEN THERE BEFORE.

ok sorry about my previous rant..i apologize
but when i run the program, the output is the same as the output of another assignment on my workspace

Are you using Eclipse? Sounds more like an IDE issue that happens when you have more than one main function. In eclipse (if you are using it) go to to Run->Run Configuration and select the appropriate main to run.

yeah im using eclipse, ill give it a try when i get home..i just upgraded from vista to 7 so idk if that has anything to do w/ it

ok i've changed my program around and while im getting the correct results, im not sure if i have it designed the way the assignment says

public class Assign8_Roberts{
 
  public static void main(String[] args)
  {
 
    double fahrenheit;
    double celsius;
 
    Scanner input = new Scanner(System.in);
 
    System.out.println("Enter the Degrees in Fahrenheit");
    fahrenheit = input.nextDouble();
    celsius = (5.0/9.0)*(fahrenheit - 32);
    System.out.println("The number of degrees of Fahrenheit: " + fahrenheit);
    System.out.println("Converted to Celsius is: " + celsius);//end convert to celsius
 
    System.out.println("Enter the Degrees in Celsius");
    celsius = input.nextDouble();
    fahrenheit = (9.0/5.0)* celsius + 32;
    System.out.println("The number of degrees of Celsius: " + celsius);
    System.out.println("Converted to Fahrenheit is: " + fahrenheit);
  }
 
}

Originally Posted by robertsbd

ok i've changed my program around and while im getting the correct results, im not sure if i have it designed the way the assignment says

The assignment mentions you need 3 methods, one of which is main. So I'd suggest pulling out those C->F and F->C calculations into their own methods (named as per the assignment guidelines).