java bitwise operators and the equal character; compound operators -


i'm bit confused:

long v = 0; v <<= 8;  v |= 230;

i know << signed left shift operator , | bitwise inclusive or i'm confused equals does?

so fist v 0. << doesn't have effect? equals 1000 happens then?

edit: i've edited title others might better find question: added "compound operators"

there +=.

for example x+=3 means add 3 x; store x.

v <<= 8;

left-shifts v 8 bits, , stores v, functionally equivalent v=v << 8.

v |= 230;

does bitwise or 230 , stores v, equivalent v=v | 230.

now, due performance constraints , optimizations operation may done in place @ low level.


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