The expression “x&2” is a bitwise AND operation in many programming languages, including languages like C, C++, Java, and others. In this context:
If “x” is a binary number, the bitwise AND operation with 2 (binary 10) will result in a number where only the bit corresponding to the second least significant bit of “x” is retained.
If “x” is a decimal number, the operation “x & 2” checks whether the second least significant bit of “x” is set (equals 1) or not (equals 0).
For example, if x is 5 (binary 101), then “x & 2” would be 0 (binary 000) because the second least significant bit is not set.
If x is 6 (binary 110), then “x & 2” would be 2 (binary 010) because the second least significant bit is set.
Knowledge Base
What is Binary 101
In binary notation, the number “101” represents the decimal number 5. Here’s the breakdown of how the binary number 101 is converted to its decimal equivalent:
(1 * 2^2) + (0 * 2^1) + (1 * 2^0) = 4 + 0 + 1 = 5
What is Binary 10
In binary notation, the number “10” represents the decimal number 2. Here’s the breakdown of how the binary number 10 is converted to its decimal equivalent:
(1 * 2^1) + (0 * 2^0) = 2 + 0 = 2
What is Binary 110
In binary notation, the number “110” represents the decimal number 6. Here’s the breakdown of how the binary number 110 is converted to its decimal equivalent:
(1 * 2^2) + (1 * 2^1) + (0 * 2^0) = 4 + 2 + 0 = 6
What is Binary 010
In binary notation, the number “010” represents the decimal number 2. Here’s the breakdown of how the binary number 010 is converted to its decimal equivalent:
(0 * 2^2) + (1 * 2^1) + (0 * 2^0) = 0 + 2 + 0 = 2