write a program in java to convert a Binary number to its equivalent Decimal number

class BinaryToDecimal

{

          public static void main(String[] args)

          {

                   int num=1101,power=0,decimal=0;

                   while(num!=0)

                   {

                                      decimal+=(num%10)*Math.pow(2,power++);

                                      num/=10;

                   }

                   System.out.println(decimal);

          }

}

Output: