Hexadecimal to Decimal

import java.util.Scanner;

class HexaDecimalToDecimal

{

    public static void main(String args[])

    {

        String hexdec ;

        String hex= "0123456789ABCDEF";

        Scanner sc = new Scanner(System.in);

        System.out.print("Enter Hexadecimal Number : ");

        hexdec = sc.nextLine();

        hexdec = hexdec.toUpperCase();

        int decimal = 0;

        for (int i = 0; i < hexdec.length(); i++)

        {

                 char ch = hexdec.charAt(i);

                 int  in= hex.indexOf(ch);

                 decimal = 16*decimal + in;

        }

        System.out.print("Decimal Number is " + decimal);

    }    

}