//********************************************************************
//  Quadratic.java       Author: Lewis/Loftus
//
//  Demonstrates the use of the Math class to perform a calculation
//  based on user input.
//********************************************************************

import java.util.Scanner;

public class Quadratic
{
    //-----------------------------------------------------------------
    //  Determines the roots of a quadratic equation.
    //-----------------------------------------------------------------
    public static void main(String[] args)
    {
        int a, b, c;  // ax^2 + bx + c
        double discriminant, root1, root2;

        Scanner scan = new Scanner(System.in);

        System.out.print("Enter the coefficient of x squared: ");
        a = scan.nextInt();

        System.out.print("Enter the coefficient of x: ");
        b = scan.nextInt();

        System.out.print("Enter the constant: ");
        c = scan.nextInt();

        // Use the quadratic formula to compute the roots.
        // Assumes a positive discriminant.

        discriminant = Math.pow(b, 2) - (4 * a * c);
        root1 = ((-1 * b) + Math.sqrt(discriminant)) / (2 * a);
        root2 = ((-1 * b) - Math.sqrt(discriminant)) / (2 * a);

        System.out.println("Root #1: " + root1);
        System.out.println("Root #2: " + root2);
    }
}