Simple Java program to convert Celsius degrees to Fahrenheit degrees and Fahrenheit degrees to Celsius degrees.

import java.util.Scanner;

//? 2017 TheFlyingKeyboard and released under MIT License

public class CelsiusFahrenheit {
  public static void main(String[] args) {
      Scanner input = new Scanner(;
      char choice;
      double temperature;
      System.out.println("C - convert Celsius to Fahrenheit, F - convert Fahrenheit to Celsius");
      choice =;
      choice = Character.toLowerCase(choice);
      System.out.print("Enter temperature value: ");
      temperature = input.nextDouble();
      if(choice == 'c'){
      	System.out.println(temperature + " degrees Celsius is equal to " + CelsiusToFahrenheit(temperature) + " degrees Fahrenheit");
      	System.out.println(temperature + " degrees Fahrenheit is equal to " + FahrenheitToCelsius(temperature) + " degrees Celsius");
  static double CelsiusToFahrenheit(double n)
        return (n * 1.8 + 32);

    static double FahrenheitToCelsius(double n)
        return ((n - 32) / 1.8);


Java Conversion Between Celsius And Fahrenheit Degrees
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