What is >> in java? [duplicate]

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Possible Duplicate:

Double Greater Than Sign (>>) in Java?

What does the following achieve ?

int num = (10-2) >> 1;

Found this very h开发者_如何学Goelpful -

What are bitwise shift (bit-shift) operators and how do they work?

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Shift right. It moves all the bits of the number right by the number specified

10-2 = 8 = 1000 in binary

8 >> 1 = 1000 >> 1 = 100 in binary = 4

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>> is just an operator to perform bitwise right shift

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its bitwise right shift in java. it shifts all binary digits,1 place towards right and pastes a zero at the leftmost end. (10-2)=8 which is 1000 in binary, now right shifting each digit and pasting 0 at the leftmost position, it gives 0100 which equals 4.

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Right shift the indicated number of bits.

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http://download.oracle.com/javase/tutorial/java/nutsandbolts/operators.html

First result on google for ">> operator java"

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See the documentation here on Bitwise shift right