Write a program to convert temperature in Fahrenheit to temperature in Celsius
and vice versa according to the user’s preference. The formula for the conversion in one
direction is as follows:
Tc = (5/9) * (Tf – 32)
Check the correctness and allowed scope of the entered data.
Let the user enter data from a file and write the conversion next to the initial value. For
example, if the user needs to convert F to C, create a file named FtoC.txt with random
Fahrenheit values. Read the file from your program and write next to each F value the C
conversion. Do this for CtoF as well.
1
Expert's answer
2012-05-25T09:26:26-0400
import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; public class Question10014 { public static double fahrenheitToCelsius(double Tf){ return (5.0/9)*(Tf-32); } public static double celsiusToFahrenheit(double Tc){ return (9.0/5)*Tc +32; } public static void main(String[] args) { // TODO Auto-generated method stub BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); try { System.out.println("Please, enter Fahrenheit to convert it into Celsius"); double Tf = Double.parseDouble(br.readLine()); System.out.println("In Celsius: " + fahrenheitToCelsius(Tf)); System.out.println("Please, enter Celsius to convert it into Fahrenheit"); double Tc = Double.parseDouble(br.readLine()); System.out.println("In Fahrenheit: " + celsiusToFahrenheit(Tc)); } catch (NumberFormatException e) { System.out.println("Wrong format!"); System.exit(1); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } } }
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