Find Distance Between One Point To Another Using Miles And Feet?

Pretty much what im trying to accomplish, i need to write a program that figures out the distance between one point to another, using miles and feet..

Heres how it has to look: "The distance from my uncles house is ___ miles, or ____ feet."

I can get it to run if i add only whole miles..but when i try to add 8.5 miles, and compile, the program flips out..I know i need to use a double somewhere, but cant figure it out, here is my code..

import java.util.Scanner; //required for input
public class feetToMiles {
public static void main (String[] args){
//Create new scanner object called input
Scanner input = new Scanner (System.in); //allows for input

[Code] ....