/*
 *   Intro to Programming CSE 1310
 * University of Texas at Arlington
 */

package code22mar18;

import java.util.Scanner;

/**
 *
 * @author jcmtiernan
 */
public class Code22Mar18 
{

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) 
    {
        // Quiz 22 Mar 2018
        // Write the output that is produced by the code from *** to ***
        // practicing reading code
        //***
        int value=0;
        for (int count=0; count <= 100; count++)
        {
            value += count;
        }
        System.out.println("The value calculated is: "+value+"\n\n");



        // the quiz used the original version of the code that 
        // is now in the addOdds method.
        int lastOdd = 20;


        System.out.println("\nfor lastOdd of "+lastOdd+" result is "+
                addOdds(lastOdd));
        
        //***
        
        
        
        
        int counter = 8;  //default        
        Scanner inValue = new Scanner(System.in);
        System.out.println("\n\nPlease enter the index location of the value you want: ");
        int check = inValue.nextInt();
        if (check > 0)
        {
            counter = check;
        }
        System.out.println("\nFor index "+counter+" the Fibonacci value is "
            +fib(counter));
        
    }
    
    public static int addOdds(int lastOdd)
    {
        int result = 0;
        for (int n = 1; n < lastOdd; n+=2)
        {
            result += n;
            //System.out.println("n is "+n+" and result is "+result);
        }
        return result;        
    }
    
    
    public static int fib(int counter)
    {
        int var = 0;
        int varMinus1 = 0;
        int varMinus2 = 1;
        //System.out.println("fib**Before start, varMinus1 is "+varMinus1+
          //      " \n\t  and varMinus2 is "+varMinus2);
        for (int k=0; k <= counter; k++)
        {
            var = varMinus1 + varMinus2;
            //System.out.println("fib**At index of "+k+" the value is "+var);
            varMinus2 = varMinus1;
            varMinus1 = var;
        } 
        return var;
    }

}