Dionisia-Edges-BinaryAndDecimal

binary_to_decimal.rb

@@ -1,10 +1,28 @@
 # A method named `binary_to_decimal` that creates an array of size 8.
 # The array is randomly filled with 0’s and 1’s.
 # Print out the array so that it appears as a binary number.
-# Calculate the decimal value for this binary number using the algorithm 
+# Calculate the decimal value for this binary number using the algorithm
 # you devised in class. Print out the decimal value and return this value.
 def binary_to_decimal
-  raise NotImplementedError
+  count = 8
+  binary_array = Array.new(count)
+  count.times do |i|
+    binary_array[i] = rand(2)
+  end
+
+  puts "The binary number is: "
+  count.times do |i|
+    print binary_array[i]
+  end
+  puts
+
+  decimal = 0
+  binary_array.reverse!
+  count.times do |i|
+    decimal += (2 ** i) * binary_array[i]
+  end
+  puts "The decimal equivalent for it is: #{decimal}."
+  return decimal
 end
 
 num = binary_to_decimal()