0x2

0x2 is the hexadecimal representation of the integer 2. The prefix 0x is used in many programming languages to indicate base-16 notation, distinguishing it from decimal notation.

As a numeric constant, 0x2 equals 2 in decimal. In binary it is 0010, and in many contexts it serves as a small bitmask that enables or checks the second least-significant bit.

Language behavior: In Python, JavaScript, C, C++, and Java, the literal 0x2 evaluates to the integer value 2. The exact type or width may vary by language, but the numerical value remains 2. It is commonly used in code samples to illustrate hex literals, bitwise operations, or as part of larger hex values.

In wider computing practice, hex notation helps humans read binary data or addresses more easily. While 0x2 itself is simple, sequences like 0x02, 0x20, or 0x2A often appear in data dumps, configuration flags, and network or cryptographic contexts.

See also: hexadecimal notation, 0x prefix, bitmask.