Temperature Conversion between Celsius and Fharenheit

The java code carried out conversion between celsius and Fahrenheit

A switch case used to select choice of conversion , C2F (celsius to Fahrenheit) or F2C (Fahrenheit to celsius) and a input temperature value is given to the selected conversion process.

Fahrenheit to Celsius

Celsius to Fahrenheit

This example  shows how to calculate use these temperature conversion formula

Given     Fharenheit F = 76 and find celsius C = ?

               C  = ( 76 -32)  x  (5/9)

                    =  44 x 0.555

               C  = 24.442

Given     Celsius C = 24 and find  Fharenheit F =?

               F  = (9 x C) / 5   +  32

                    =  (9 x 24) / 5  + 32

                   =   216 / 5  + 32

                  =   43.2   +32

                F  =   75.2

import java.util.Scanner;

public class Cel2Fah {

 public static void main(String[] args) {
  

          System.out.println("Temperature Conversion 
                           (Celsius - Fharenheit) \n");
   String menustr="1- C2F n2- F2C n";
   System.out.println(menustr);
   System.out.println("Select Choice");
 
     Scanner sc = new Scanner(System.in);
     int choice =sc.nextInt();
     double cel=0.0,fah=0.0;
     
     
  switch ( choice ) 
  {  
     case 1:
    
   System.out.println("Enter Celsius value ");
   cel = sc.nextDouble();
   fah = 9.0*cel/5.0+32;
   System.out.println("Fharenheit :  " + fah);
   break;
    
     case 2:
    
   System.out.println("Enter Fharenheit value");
   fah = sc.nextDouble();
   cel = (fah-32)*5.0/9.0;
   System.out.println("Celsius :  " + cel);
   break;
  }
  sc.close();
  
 }

}

Output

Temperature Conversion (Celsius - Fharenheit) 

1- C2F 
2- F2C 

Select Choice
1
Enter Celsius value 
37
Fharenheit :  98.6


Temperature Conversion (Celsius - Fharenheit) 

1- C2F 
2- F2C 

Select Choice
2
Enter Fharenheit value 
96
Celsius :  35.55555555555556