Quadratic Formula Calculator

package quadraticcalculator;

import java.util.Scanner;

public class QuadraticCalculator {
    public static void main(String[] args) {
            // Prompt user to enter the values for a b and c
        System.out.print("Enter value for a: ");
        Scanner scan = new Scanner(System.in);
        double a = scan.nextInt();

        System.out.print("Enter the value for b: ");
        double b = scan.nextInt();

        System.out.print("Enter for value for c: ");
        double c = scan.nextInt();

        double x1 = (-b + (Math.sqrt((b*b - ((4 * a * c))))))/ (2 * a);
        double x2 = (-b - (Math.sqrt((b*b - ((4*a*c))))))/ (2 * a);

        if (((b*b - ((4 * a * c))) < 0) == true){
            System.out.println("This equation is unsolvable.");
        }
        else if(((b*b - ((4 * a * c))) < 0) == false){
            System.out.println("X is eaqual to: " + x1);
            System.out.println("X is eaqual to: " + x2);
        }
    }
}