Re: FN-FORUM the operator >>

date posted 15th January 2002 17:40

> is shift right, | is bitwise OR, & is bitwise
AND and ~ is bitwise NOT.

The most common use for these operators is to allow you to isolate bitfields.

For instance if you want to take the top three bits of an eight-bit quantity
x you can do it with (x >> 5) & 7;

The x >> 5 shifts right by five bits then the & 7 masks off the bottom three
bits of the result.

You could replace the same three bits of x with y as follows:

x = ((x & 0x1f) | ((y & 7) hi there,
> i don't know where to ask this question in java newsgroups and i hope
> this mailing list will help. i'm a java newbie and have frequently
> come across codes like this: int r=(colorval >> 16) &
> 0xff;
> int g=(colorval >> 8) & 0xff;
> int b= colorval & 0xff;
> can anybody here explain how this operator work?
> marcoSend and receive Hotmail on your mobile
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