// Name:    Lab14c.java
// Date:    April 30, 2014
// Author:  Mr. Cargill
// Purpose: Driver class for Lab14c - Fibonacci

package fibonacci;
import java.util.Scanner;

public class Lab14c
{
	public static void main(String args[])
	{
		int ln = 0;		// The length of the sequence
		int fn = 0;		// The fibo number the user wishes to view
		
		// Create the Scanner object used for user input.
		
		Scanner kb = new Scanner(System.in);
		
		// Prompt the user to enter the length of the sequence.
		
		System.out.print("Enter a number for the length of the Fibonacci sequence: ");
		
		while((ln=kb.nextInt()) <= 0) System.out.print("Please enter a positive integer: ");
		
		System.out.println();	// Skip a line for aesthetics
		
		// Create the Fibonacci sequence
		
		Fibonacci fb = new Fibonacci(ln);
		
		// Prompt the user to enter the element number they wish to view
				
		while(true) {
			System.out.print("Enter the fibo number you wish to view or -1 to exit: ");				
			fn = kb.nextInt();
			if(fn == -1) break;
			System.out.printf("Fibo number %d is %d.\n\n",fn,fb.getFibo(fn));
		}
		
	}
}