Bit Detector - Check if ith Bit is Set

🔍 Detection Panel

n & (1 << i) → Check bit i

Number (n) 0

Number (n)

Bit Position (i)

📚 Check if ith Bit is Set

To check if the ith bit is set (equals 1), use AND with a mask:

          isSet = (n & (1 << i)) != 0

          // Example: Check bit 3 of 42 (00101010)

          // 1 << 3 = 00001000

          // 42 & 8 = 00001000 = 8 (not zero!)

          // Bit 3 is SET ✓

If the result is non-zero, the bit is ON. If zero, the bit is OFF.