/*
read array data from a file; call a method to change array value
(half all elements)

*/

import java.util.Scanner;
class ChangeArrayDemo
{
	public static void main(String[] args)
	{
		Scanner input = new Scanner(System.in);

		double[] vals = new double[100];
		int size = 0;

		while(input.hasNextDouble())
		{
			vals[size] = input.nextDouble();
			size ++;
		}

		System.out.print("size = " + size + "\n\n");
		// invoke the method
		halfArray( vals  , size  );

		// output all elements of the array to monitor
		outPutArray(vals, size);

		System.out.println("\n\n\n\n");
	}
	//------------------------------------
	public static void halfArray(double[] arr, int size)
	{
				for(int i=0; i<size; i++)
				{
					arr[i] *= 0.5;
				}
	}

	//-------------------------------------
	private static void outPutArray(double[] arr, int size)
	{
			for(int i=0; i<size; i++)
			{
				System.out.print(arr[i] + "   ");
			}
	}
}