/**
 * Author: Josiah Yoder et al.
 * User: yoder
 * Class: SE1011-011
 * Lesson: Week 9, Day 3
 */
import java.util.ArrayList;
import java.util.Scanner;

public class Example011_10_2 {
    public static void main(String[] ignored) {

        /*

           Design strategies
           Top-down
           Bottom-up
           Case-based

         */

        /*

          Reasons for using an ArrayList
            Store objects
            Change length of array
            Variable-size Matrices

          Reasons for using an Array
            Storing primitive types
            Large matrix of primitive types

         */

        int x = 0;
        int y = 0;
        x++;
        y = x;

        // doesn't work
        //ArrayList<double> list = new ArrayList<double>();
        // doesn't work
        ArrayList<Double> list = new ArrayList<Double>();



        // FROM LAST CLASS
        // Arrays
        // Lines up side-by-side with ArrayLists below
        Complex011_10_2[] complexArray;
        complexArray = new Complex011_10_2[5];

        complexArray[0] = new Complex011_10_2(1,2);




        for(int i=0; i<complexArray.length;
                i++) {

            System.out.println("Item "+i+
                " is "+complexArray[i]);
        }


        // ArrayLists
        // Lines up side-by-side with Arrays above
        ArrayList<Complex011_10_2> complexArrayList;
        complexArrayList =
                new ArrayList<Complex011_10_2>();
        //complexArrayList.set(0,
        //        new Complex011_10_2(1,2));
        complexArrayList.add(
                new Complex011_10_2(1,2));
//        complexArrayList.remove(0);
        for(int i=0;
            i<complexArrayList.size();
            i++) {
            System.out.println("Item "+i+
                    " is " +
                   complexArrayList.get(i));
        }

        // Call equals just to see if the debug println's work.
        complexArrayList.get(0).equals(new Complex011_10_2(1,2));

        // For these to work, we need to implement .equals for the Complex011_10_2 type.
        // This is a SE1021 subect.
        System.out.println("(1,2) is at " +
            complexArrayList.indexOf(new Complex011_10_2(1,2)));

        Complex011_10_2 key = new Complex011_10_2(1,2);
        System.out.println("(1,2) is at " +
                complexArrayList.indexOf(key));

        System.out.println("(1,2) is at " +
                complexArrayList.lastIndexOf(key));

        for(Complex011_10_2 c : complexArrayList) {
            System.out.println("Item: "+ c);
        }

        // Write a program that asks the user to enter Complex011_10_2 numbers into an ArrayList
        // until they enter 0, 0.

        // Both acceptable for comparing doubles for now:
//        firstNumber==0
//        Math.abs(firstNumber) > 0.00001

        // Solution:  Thanks to the class for help in writing this
        double real;
        double imag;

        Scanner in = new Scanner(System.in);
        ArrayList<Complex011_10_2> list1 = new ArrayList<Complex011_10_2>();

        do {
            System.out.println("Enter the real component: ");
            real = in.nextDouble();
            System.out.println("Enter the imaginary component: ");
            imag = in.nextDouble();

            if( real != 0 || imag != 0 ){
                list1.add(new Complex011_10_2(real, imag));
            }
        } while (real !=0 || imag !=0);

        ArrayList<Complex011_10_2> list2 = list1;
        // Draw what this looks like in memory
    }
}