bhaskara-simple

package example;
import java.util.Scanner;

public class HelloWorld {
    public static void main(String[] args) {
        double a, b, c, delta;
        double[] x = new double[2];
        Scanner input;

        input = new Scanner(System.in);

        System.out.print("a: ");
        a = input.nextDouble();

        System.out.print("b: ");
        b = input.nextDouble();

        System.out.print("c: ");
        c = input.nextDouble();

        if (a == 0) {
            x[0] = -c / b;
            System.out.println("x = " + x[0]);
            return;
        }

        delta = ((b * b) - (4 * a * c));

        if (delta < 0) {
            System.out.println("Delta < 0");
            return;
        }

        x[0] = ((-b + (Math.sqrt(delta))) / (2 * a));
        x[1] = ((-b - (Math.sqrt(delta))) / (2 * a));

        System.out.println("x[0] = " + x[0] + ", x[1] = " + x[1]);
    }
}