/** Array.java - Let's play around with an array.
 *  Let's put the command-line argument values into an array.
 */
public class Array
{
  public static void main(String [] args)
  {
    // use args.length to determine size of array

    int [] a = new int[args.length];

    for (int i = 0; i < a.length; ++i)
      a[i] = Integer.parseInt(args[i]);

    int sum = 0;
    for (int i = 0; i < a.length; ++i)
      sum += a[i];

    System.out.println("The sum is " + sum);

    // To find the max, first assume that a[0] is the max.
    // then, loop across the other elements of the array,
    // to see if any one is larger than max.
    int max = a[0];
    int maxLocation = 0;

    for (int i = 1; i < a.length; ++i)
      if (a[i] > max)
      {
        max = a[i];
        maxLocation = i;
      }

    System.out.println("The largest element is " + max + " at index " +
                       maxLocation);

    // Search the array for the first appearance of a zero.
    int index = -1;
    for (int i = 0; i < a.length; ++i)
      if (a[i] == 0)
      {
        index = i;
        break;
      }

    if (index == -1)
      System.out.println("I could not find a zero in the array.");
    else
      System.out.println("Location of first zero is " + index);

  }
}