QUESTION IS IN BOLD:  JAVA Programming: 

public static int binaryToDecimal(String value) { // TODO: Fill in body } } 

Using the following method header above, convert binary numbers to decimal numbers using the algorithm below.

To convert from a binary to a decimal representation, your code will need to take into account the place of each digit in the binary string. One algorithm for performing this conversion is:

Start with a value of 0 for your decimal number

Assign a value n to be the power of the leftmost digit in your representation (HINT: this will be the length of the string - 1)

For each digit in your binary representation, working from left to right

Multiply the digit by your 2ⁿ

Add that result to your decimal total

Subtract 1 from n

Repeat until all digits have been processed

Here's an example of the number 1011 converted to a decimal number by applying the algorithm above

Start with result = 0, n = 3

At index 3

Multiply 1 by 2³ = 8

result = 0 + 8 = 8

n = 2

At index 2

Multiply 0 by 2² = 0

result = 8 + 0 = 8

n = 1

At index 1

Multiply 1 by 2¹ = 2

result = 8 + 2 = 10

n = 0

At index 0

Multiply 1 by 2⁰ = 1

result = 10 + 1 = 11

n = -1

Our final result is 11