Question

Temperature Conversion
You are given the temperature T of an object in one of Celsius, Fahrenheit, and Kelvin scales.
Write a program to print T in all scales viz Celsius, Fahrenheit, and Kelvin.

Answer 1

Formula:

Formula to convert from Fahrenheit F to Celsius C is C = (F - 32) * 5 / 9. Formula to convert from Kelvin K to Celsius C is C = K - 273.

Answer 2

This program is in Java. I have also added all the possible outputs ^_^

 

import java.util.Scanner;

public class TempConvertor{

  public static void main (String [] args){

      Scanner sc = new Scanner(System.in);

      System.out.println("Enter a temperature to see it's equivalent in Celsius, Fahrenheit and Kelvin");

      System.out.println("If your input is in Celsius, Fahrenheit or Kelvin, press 1, 2 or 3 respectively");

      double choice = sc.nextDouble();

      if (choice == 1){

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

          double tempC = sc.nextDouble();

          double tempF = (tempC*1.8) + 32;

          double tempK = tempC + 273.15;

          System.out.println("Fahrenheit: " + tempF);

          System.out.println("Kelvin: " + tempK);}

      if (choice == 2){

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

          double tempF = sc.nextDouble();

          double tempC = (tempF - 32)/1.8;

          double tempK = tempC + 273.15;

          System.out.println("Celsius: " + tempC);

          System.out.println("Kelvin: " + tempK);}

      if (choice == 3){

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

          double tempK = sc.nextDouble();

          double tempC = tempK - 273.15;

          double tempF = (tempC*1.8) + 32;

          System.out.println("Celcius: " + tempC);

          System.out.println("Kelvin: " + tempK);

      }

      if (choice != 2 && choice != 1 && choice != 3)

      System.out.println("Enter only 1, 2 or 3 :(");

  }

}

Output:

(i)

Enter a temperature to see it's equivalent in Celsius, Fahrenheit and Kelvin

If your input is in Celsius, Fahrenheit or Kelvin, press 1, 2 or 3 respectively

123

Enter only 1, 2 or 3 :(

(ii)

Enter a temperature to see it's equivalent in Celsius, Fahrenheit and Kelvin

If your input is in Celsius, Fahrenheit or Kelvin, press 1, 2 or 3 respectively

1

Enter the temperature in Celcius: 37

Fahrenheit: 98.60000000000001

Kelvin: 310.15

(iii)

Enter a temperature to see it's equivalent in Celsius, Fahrenheit and Kelvin

If your input is in Celsius, Fahrenheit or Kelvin, press 1, 2 or 3 respectively

2

Enter the temperature in Fahrenheit: 98.60000000000001

Celsius: 37.00000000000001

Kelvin: 310.15

(iv)

Enter a temperature to see it's equivalent in Celsius, Fahrenheit and Kelvin

If your input is in Celsius, Fahrenheit or Kelvin, press 1, 2 or 3 respectively

3

Enter the temperature in Kelvin: 310.15

Celcius: 37.0

Kelvin: 310.15