How to apply discount on a item in Java

import java.io.*;

public class q3

{

          public static void main(String args[]) throws Exception

          {

                   InputStreamReader in = new InputStreamReader(System.in);

                  

BufferedReader br = new BufferedReader(in);

                  

System.out.println("1. Laptop");

                  

System.out.println("2. printer");

                  

System.out.print("Enter choice : ");

                  

int ch=Integer.parseInt(br.readLine());

                  

Float dis;

                  

if(ch==1)

                   {

                             dis=0.15f;

                   }

                   else

                             if(ch==2)

                             {

                                      dis=0.10f;

                             }

                             else

                             {

                                      System.out.println("Wrong Input");

                  

                                      dis=0.0f;

                             }

                   System.out.print("Enter price : ");

                  

float price=Float.parseFloat(br.readLine());

                  

float fprice=price-(dis*price);

                  

System.out.println("Price after discount : "+fprice);

          }

}