How can we convert a fractional binary number into a decimal num?

Question

can anyone solve it?

Answer 1

I convert a binary string, such as 1001101 to Decimal (77) using c#

Convert.ToInt32("1001101", 2).ToString();

output 77

Answer 2

you can use...
String s = Integer.tobinaryNumber ();

Answer 3

give an example please.