/*
   Name: Joseph Schuman
   Date: 2/6/2015
   File: Chapter 6 Assignment
   Descripetion: Takes a decimal number and rounds it to the
   nearest integer value.  Methods are used to separate the rounding
   method from the main method.

*/

import java.util.Scanner;

public class CPT236DecimalRoundMethod {
   public static void main(String[] args) {
   //Main method 
   //Create the Scanner object.
   Scanner input = new Scanner(System.in);
   
   //Prompt the user to enter a decimal number.
   System.out.print("Enter a decimal number: ");
   double dec1 = input.nextDouble();
   System.out.print("Enter a number to round by decimal places: ");
   int decRnd = input.nextInt();   
      
   System.out.println("The value "+ dec1 + " is rounded to " + decimalRound(dec1, decRnd));
   }
   
   
   //Return the rounded decimal.
   public static double decimalRound(double dec1, int decRnd) {
   //Covert decimal to integer and round to 'decRnd' decimal places.
   dec1 += 5.0/Math.pow(10, decRnd + 1);
   dec1 *= Math.pow(10, decRnd);
   long dec2 = (long) dec1;
   double finalDec = (double)dec2/(Math.pow(10, decRnd));
  
   return finalDec;
   }

}