Java QuadraticCalculator

// 15101194S

//Import Scanner
import java.util.Scanner;
public class QuadraticCalculator
{
        public static void main(String[] args)
        {
                //Title
                System.out.println("Welcome to use Quadratic Calculator ");
                //Scanner
                Scanner sc = new Scanner(System.in);
                //Insert Values
                System.out.print("Pleast enter the value a: ");
                double ValueA = sc.nextDouble();
                System.out.print("Pleast enter the value b: ");
                double ValueB = sc.nextDouble();
                System.out.print("Pleast enter the value c: ");
                double ValueC = sc.nextDouble();
                //Disciminant
                double Disc = (ValueB * ValueB) - (4 * ValueA * ValueC);
                double QuadFormPlus = (-ValueB + Math.sqrt(Disc)) / (2 * ValueA);
                double QuadFormMinus = (-ValueB - Math.sqrt(Disc)) / (2 * ValueA);
                double QuadFormZero = -ValueB / (2 * ValueA);
                //Result more than zero
                if (Disc > 0) {
                    System.out.println("");
                }
                System.out.println("X1:" + QuadFormPlus);
                System.out.println("X2:" + QuadFormMinus);
                //Result equals zero
                if (Disc == 0) {
                    System.out.println("X:"+ QuadFormZero);
                }
                //Math Error
                if (Disc < 0) {
                    System.out.println("Math Error");
                }
        }
}