Quadratic Formular Solver (Non-GUI)

[SuF]

I just made this better, because I have used it like 10,000 times for math class. . I hope you guys learn something.

package suf;

import java.util.*;

public class QuadraticSolver 
{
	static boolean useAgain = true;
	static Scanner s = new Scanner(System.in);
	static boolean validInput = true;

	public static void main(String[] args)
	{
		System.out.println("Welcome to SuF's Quadtratic Formula Solver!");
		System.out.println("Remeber your negivtive signs!");

		while (useAgain) 
		{
			quadraticFormula();
			System.out.print("Would you like to use this program again? ('Y' or 'N'):");
			do 
			{
				String answer = s.next();
				validInput = true;
				if (answer.equalsIgnoreCase("N"))
					useAgain = false;
				else if (answer.equalsIgnoreCase("Y"))
					;
				else 
				{
					validInput = false;
					System.out.println("Please Enter 'Y' or 'N'");
				}

			} while (!validInput);

		}
		System.out.println("\n" + "Thank you for using SuF's Quadtratic Formula Solver!");
	}

	public static void quadraticFormula() 
	{
		double a = getInput("Enter A:");
		double b = getInput("Enter B:");
		double c = getInput("Enter C:");
		double d = Math.sqrt((b * b) - (4 * a * c));
		System.out.println("Answer 1: " + (-b + d) / (2 * a) + "\n" + "Answer 2: " + (-b - d) / (2 * a));
	}

	public static double getInput(String output) 
	{
		while (true) 
		{
			try 
			{
			System.out.print(output);
			return s.nextDouble();
			} 
			catch (InputMismatchException e) 
			{
				s.next();
			}
		}

	}

}

 

[Billyy]

I have a QF program on my TI-84+ Silver Edition.

 

[SuF]

I just have chemistry test answers on mine.

 

[GreatKhan]

Best way to hide formulas on a calc is through pics ^^ (2nd+prog.. u can figure it out from there).. teachers usually only check for programs and its pretty fast to load a pic ^^

 

[SuF]

Our teachers don't check our calcs for anything... lul

 

[Dreadsthegreat]

its kinda sad, there are calculators with dictionary words isnide them

 

[Swan]

its kinda sad, there are calculators with dictionary words isnide them

And? My calculator has Doom on it.

 

[SuF]

And? My calculator has Doom on it.

Well, thats fucking unfair!