JAVA Bit Operator

int x = 0xfff;

Hex 0xfff
Bin 0000 0000 0000 0000 0000 1111 1111 1111 (32bit)

Hexadecimal → Binary → Bit Operation → Hexadecimal

~x : fffff000
x<<4 :  fff0  move left, fill blank 0
x>>4 : ff move right, fill blank 0
-1 >> 4 : ffffffff    (eight f) → fill blank 0
-1 >>> 4 : fffffff   (seven f) → fill blank 1