/* Project: ParallelArrays
* File: Program.cs
* Author: KTL
* Date: Fall 2007
*
* Project Description:
*  - This project illustrates the use of "parallel arrays".
*/

using System;
using System.Collections.Generic;
using System.Text;

namespace ArraysNotFull
{
    class Program
    {
        static void Main(string[] args)
        {
      //Parallel arrays associate each entry in multiple arrays with the same index.
      //for instance: Kathy (index 2 in name[] array) is
      //              2 years old (index 2 in age[] array), and
      //              weighs 18 lbs (index 2 in weight[] array).
      int[] age = { 3, 1, 2, 5, 3, 2, 4, 6 };
      int[] weight = { 20, 19, 18, 20, 21, 22, 23, 20 };
      String[] name = { "John", "Emma", "Kathy", "Susy", "Abby", "Lia", "Beth", "Mike" };

      //Problem 1: How many kids have the same age as "Abby"?
      //Solution: PART A: Find Abby's age, then
      //          PART B: Count number of times Abby's age appears in age[] array

      //PART A: Find Abby's age
      //  Step 1: find index where "Abby" occurs in name[] array...
      int index;
      index = search( name, "Abby"); //return index where "Abby" occurs in name[]
      if (index == -1) //if name not found at all
      {
       Console.Out.WriteLine( "Abby not found");
       return;
      }
      //  Step 2: find Abby's age
      int kidAge; //holds Abby's age
      kidAge = age[ index]; //use same index to get age associated with "Abby"
      Console.Out.WriteLine( "Abby's age is " + kidAge);

      //PART B:
      //count number of occurences of "kidAge" (Abby's age) in age[] array
      int times; //holds number of occurrences
      times = count( age, kidAge);
      Console.Out.WriteLine( times + " kids have the same age as Abby");

      //Problem 2: TO DO
      //Given x, a weight selected by the user, write the code snippet to:
      //1. Calculate how many kids weight x pounds.
      //2. List the names of all kids whose weight is x.
      //
            
      //PART A: Find x's weight
      int x;
      Console.Out.Write("Enter your desired weight from 18-23 lbs: ");
      x = int.Parse(Console.In.ReadLine());


      //  Step 1: find index where "x" occurs in weight[] array...
      index = search( weight, x); //return index where "x" occurs in weight[]
      if (index == -1) //if weight not found at all
      {
       Console.Out.WriteLine( "Weight not found");
       return;
      }
      //  Step 2: find who's whose weight
      int kidWeight; //holds x's age
      int kidName;
      kidWeight = weight[ index]; //use same index to get age associated with "x"
      Console.Out.WriteLine("These kids who weight" + kidWeight + "lbs are: " + kidName);

      //PART B:
      //count number of occurences of "kidWeight" (x's weight) in weight[] array
      //holds number of occurrences
      times = count( age, kidWeight);
      Console.Out.WriteLine( times + "kids weights in as " + kidWeight + "lbs.");
     //        } //main() method

        static int search(String[] Arr, String name)
        { //returns index where 'name' is found in the array of strings 'Arr'...
            for (int i = 0; i < Arr.Length; i++)
            {
                if (name.Equals(Arr[i]))  //This is the correct way of checking
                    return i;             //  whether two Strings are equal.
            }                             //  Remember: Strings are objects!
            return -1;  //name not found
        } //search() method

        static int count(int[] Arr, int num)
        { //returns number of times 'num' occurs in the arrays of integers 'Arr'...
            int times = 0;  //number of occurrences of "num" in Arr
            for (int i = 0; i < Arr.Length; i++)
            {
                if (num == Arr[i])      //in this case we can use the regular '=='
                    times = times + 1;  //  since we're comparing integers. We can
            }                           //  compare primitive datatypes using '=='
            return times;
        } //count() method

    } //Program class

} //ArraysNotFull project

class Kid {
   public int age;
   public int weight;
   public string name;
   public Kid() {}
   public Kid(int age, int weight, string name) {
      this.age = age;
      this.weight = weight;
      this.name = name;
   }
}

List <Kid> kids = new List <Kid>();
kids.Add(new Kid(2,20,"John"));
kids.Add(new Kid(1,29,"Emma"));