We are getting to know about Java's basics. Java has the bitwise operators. (which all other advanced programming language do either) There are several operands of them. Bitwise operators & opreator Performs an and calculation between data bits ^ opreator Performs an or calculation between data bits | opreator Performs a xor calculation between data bits ~ operator Inverts all data bits Bitshift operators << operator Shifts the bit pattern to the left >> operator Shifts the bit pattern to the right >>> operator Shifts the zero to the leftmost position These are the opreators. which is never used. Even the Java Documentation says these are "less commonly used". So just make sure you 'heard' of these exists. Check out more about these operators here: Official Java Documentation