Finding roots of a quadratic equation

 import java.util.*;

public class SolveQuad {

public static void main(String args[]){

Scanner sc = new Scanner(System.in);

System.out.println("Enter value of a");

double a = sc.nextInt();

System.out.println("Enter value of b");

double b = sc.nextInt();

System.out.println("Enter value of c");

double c = sc.nextInt();

System.out.println("The entered Quadratic equation is:");

System.out.println(a+"x2"+"+"+b+"x"+"+"+c);

double d = b*b-4*a*c;

if(d>0.0){

double r1=(-b+Math.pow(d,0.5))/2.0*a;

double r2=(-b-Math.pow(d,0.5))/2.0*a;

System.out.println("The first root is: "+r1+"\n "+"The Second root is: "+r2);

} else if(d==0.0){

double r1=-b/(2*a);

System.out.println("The root of the equation is: "+r1);

} else{

System.out.println("The given equation has no real roots");

}

}

}