Java program to convert Fahrenheit to Celsius

import java.util.*;

class FahrenheitToCelsius {
  public static void main(String[] args) {
    float temperatue;
    Scanner in = new Scanner(System.in);      

    System.out.println("Enter temperatue in Fahrenheit");
    temperatue = in.nextInt();

    temperatue = (temperatue - 32)*5/9;

    System.out.println("Temperatue in Celsius = " + temperatue);
  }
}
Output 


For Celsius to Fahrenheit conversion use
T = 9*T/5 + 32
where T is temperature on Celsius scale.