Question

In java with output

Temperature-conversion program that gives the user the option of converting

Fahrenheit to Celsius or Celsius to Fahrenheit and depending upon user’s choice carries out the

conversion. [Formula: (9*Celsius)/5=(Fahrenheit-32)]​

Answer 1

class CelsiustoFahrenheit

{

public static void main(String arg[])

{

double a,c;

Scanner sc=new Scanner(System.in);

System.out.println("Enter Celsius temperature");

a=sc.nextDouble();

System.out.println("Fahrenheit temperature is = "+fahrenheit(a));

}

static double fahrenheit(double c)

{

return ((9*c)/5)+32;

}

}

Explanation:

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Answer 2

Answer: I have also added all possible outputs

import java.util.Scanner;

public class CelciusToFahrenheit{

   public void main (){

       Scanner sc = new Scanner(System.in);

       System.out.println("Press 0 for Celcius to Fahrenheit and 1 for Vice-Versa");

       double choice = sc.nextDouble();

       if (choice == 0){

           System.out.print("Enter the temperature in Celcius: ");

           double tempC = sc.nextDouble();

           double tempF = (tempC*1.8) + 32;

           System.out.println("The temperature in Fahrenheit: " + tempF + "°F");}

       if (choice == 1){

           System.out.print("Enter the temperature in Fahrenheit: ");

           double tempF = sc.nextDouble();

           double tempC = (tempF - 32)/1.8;

           System.out.println("The temperature in Celcius: " + tempC + "°C");}

       if (choice != 0 && choice != 1)

       System.out.println("Enter only 1 or 2 :(");

   }

}

Output:

(i)

Press 0 for Celcius to Fahrenheit and 1 for Vice-Versa

0

Enter the temperature in Celcius: 37

The temperature in Fahrenheit: 98.60000000000001°F

(ii)

Press 0 for Celcius to Fahrenheit and 1 for Vice-Versa

123

Enter only 1 or 2 :(

(iii)

Press 0 for Celcius to Fahrenheit and 1 for Vice-Versa

1

Enter the temperature in Fahrenheit: 98.6

The temperature in Celcius: 36.99999999999999°C