Java: Scanner Input

package mobilejava;

/**
 * @author slavkurochkin
 */

import java.util.Scanner;
public class ScannerCalculate {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		// TODO Auto-generated method stub

		//Create new Scanner object
		Scanner input = new Scanner(System.in);
		
		//Ask user to specify exchange value
		System.out.println("Enter amount you would like to change");
		double dollars = input.nextDouble();
		
		// Compute amount
		double rubles = dollars*36;
		
		//Display results 
		System.out.println("Amount of rubles for the given dollars " + dollars + " is " + rubles);
		
	}

}