get the last bit in a bitarray in csharp

To get the last bit in a BitArray in C#, you can use bitwise operations. First, you need to determine the index of the last bit in the array which is the array's length minus one. Then, you can use the '&' operator to perform a bitwise AND between the last item in the array and the value 1, which sets all bits to 0 except the last bit. Finally, you can cast the result to a boolean value to get either true or false, depending on whether the last bit is set or not.

Here's the code that illustrates the approach:

main.cs
BitArray myBitArray = new BitArray(4); // create a BitArray with 4 bits
myBitArray[3] = true; // set the last bit to 1
bool isLastBitSet = (myBitArray[myBitArray.Length - 1] & 1) != 0; // get the last bit
Console.WriteLine(isLastBitSet); // output: True
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In this example, the output will be True, indicating that the last bit in the myBitArray is set to 1.