Java's >> versus >>> Operator? [duplicate]

Answer 1

For positive numbers, there is no difference. Negative (two's complement) numbers will be filled with zeros for >>> and ones for >>.

1010 0110 >>>2 = 0010 1001

1010 0110 >> 2 = 1110 1001

Answer 2

The arithmetic shift >> is division by two for signed integers, while the logical shift >>> is division by two for unsigned numbers (if you interpret the bit pattern in a signed Java int as an unsigned integer).

Answer 3

The >> is an arithmetic shift, which preserves the sign bit in any 'vacant' bits. The other is a logical shift which fills the vacant spots with zeroes.