/*
 * Click nbfs://nbhost/SystemFileSystem/Templates/Licenses/license-default.txt to change this license
 * Click nbfs://nbhost/SystemFileSystem/Templates/Classes/Class.java to edit this template
 */
package lab11_forloop_calebfontenot;

import java.util.Scanner;

/**
 *
 * @author caleb
 */
public class MenuDoWhile {

    public static void main(String[] args)
    {
        Scanner scan = new Scanner(System.in);

        System.out.println("\nQ/q: to quit");
        System.out.println("1: to calculate the square of a number");
        System.out.println("2: to calculate the square root of a number");
        String s = scan.next();//2. INITIALIZATION OF THE CONDITION

        do 
        {
            if (s.charAt(0) == '1' || s.charAt(0) == '2') {
                System.out.println("enter the number:");
                double number = scan.nextDouble();
                System.out.println((s.charAt(0) == '1')
                        ? "the square : " + (number * number)
                        : "the square root : " + Math.pow(number, 0.5));
            } else if (s.charAt(0) != 'Q' && s.charAt(0) != 'q') {
                System.out.println("invalid character");
            }

            System.out.println("\nQ/q: to quit");
            System.out.println("1: to calculate the square of a number");
            System.out.println("2: to calculate the square root of a number");
            s = scan.next();//3.UPDATE OF THE CONDITION
        } while (s.charAt(0) != 'Q' && s.charAt(0) != 'q'); //1. THE CONDITION
    }
}