Java Program to find All Real Solutions to the Quadratic Equation

      class Quadratic
   {
     public static void main(String args[])throws IOException
     {
       double x1,x2,disc,a,b,c;
       InputStreamReader obj=new InputStreamReader(System.in);
       BufferedReader br=new BufferedReader(obj);
       System.out.println("enter a,b,c values");
       a=Double.parseDouble(br.readLine());
       b=Double.parseDouble(br.readLine());
       c=Double.parseDouble(br.readLine());
       disc=(b*b)-(4*a*c);
       if(disc==0)
       {
         System.out.println("roots are real and equal ");
         x1=x2=-b/(2*a);
         System.out.println("roots are "+x1+","+x2);
       }
       else if(disc>0)
       {
         System.out.println("roots are real and unequal");
         x1=(-b+Math.sqrt(disc))/(2*a);
         x2=(-b+Math.sqrt(disc))/(2*a);
         System.out.println("roots are "+x1+","+x2);
       }
       else
       {
         System.out.println("roots are imaginary");
       }
     }
  }