wont run outside of eclipse

FahToCel

package Codes;

import java.util.Scanner;

public class fahrenheitToCelcius {

	private static Scanner f;

	public static void main (String[] args) //program created by Infidel Eraser#5265 on discord
	{
		f = new Scanner(System.in);
		System.out.println("This program made by Infidel Eraser#5265 converts Fahrenheit to Celcius");
		System.out.print("Enter temperature in Fahrenheit ");
		int fah = f.nextInt();
		double calc = ((fah - 32) * 5/9);
		System.out.print(fah + "°F = " + calc + "°C");
		
}
}