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Summary of Operators

The following table lists the operators supported by the Java programming language.

All Operators

Operator	Use	Description
+	+op	Promotes op to int if it's a byte, short, or char
-	-op	Arithmetically negates op
+	op1 + op2	Adds op1 and op2; also used to concatenate strings
-	op1 - op2	Subtracts op2 from op1
*	op1 * op2	Multiplies op1 by op2
/	op1 / op2	Divides op1 by op2
%	op1 % op2	Computes the remainder of dividing op1 by op2
++	op++	Increments op by 1; evaluates to the value of op before it was incremented
++	++op	Increments op by 1; evaluates to the value of op after it was incremented
--	op--	Decrements op by 1; evaluates to the value of op before it was decremented
--	--op	Decrements op by 1; evaluates to the value of op after it was decremented
>	op1 > op2	Returns true if op1 is greater than op2
>=	op1 >= op2	Returns true if op1 is greater than or equal to op2
<	op1 < op2	Returns true if op1 is less than op2
<=	op1 <= op2	Returns true if op1 is less than or equal to op2
==	op1 == op2	Returns true if op1 and op2 are equal
!=	op1 != op2	Returns true if op1 and op2 are not equal
&&	op1 && op2	Returns true if op1 and op2 are both true; conditionally evaluates op2
||	op1 || op2	Returns true if either op1 or op2 is true; conditionally evaluates op2
!	!op	Returns true if op is false
&	op1 & op2	Returns true if op1 and op2 are both boolean and both true; always evaluates op1 and op2; if both operands are numbers, performs bitwise AND operation
|	op1 | op2	Returns true if both op1 and op2 are boolean and either op1 or op2 is true; always evaluates op1 and op2; if both operands are numbers, performs bitwise inclusive OR operation
^	op1 ^ op2	Returns true if op1 and op2 are different — that is, if one or the other of the operands, but not both, is true
<<	op1 << op2	Shifts bits of op1 left by distance op2; fills with 0 bits on the right side
>>	op1 >> op2	Shifts bits of op1 right by distance op2; fills with highest (sign) bit on the left side
>>>	op1 >>> op2	Shifts bits of op1 right by distance op2; fills with 0 bits on the left side
&	op1 & op2	Bitwise AND if both operands are numbers; conditional AND if both operands are boolean
|	op1 | op2	Bitwise OR if both operands are numbers; conditional OR if both operands are boolean
^	op1 ^ op2	Bitwise exclusive OR (XOR)
~	~op	Bitwise complement
=	op1 = op2	Assigns the value of op2 to op1
+=	op1 += op2	Equivalent to op1 = op1 + op2
-=	op1 -= op2	Equivalent to op1 = op1 - op2
*=	op1 *= op2	Equivalent to op1 = op1 * op2
/=	op1 /= op2	Equivalent to op1 = op1 / op2
%=	op1 %= op2	Equivalent to op1 = op1 % op2
&=	op1 &= op2	Equivalent to op1 = op1 & op2
|=	op1 |= op2	Equivalent to op1 = op1 | op2
^=	op1 ^= op2	Equivalent to op1 = op1 ^ op2
<<=	op1 <<= op2	Equivalent to op1 = op1 << op2
>>=	op1 >>= op2	Equivalent to op1 = op1 >> op2
>>>=	op1 >>>= op2	Equivalent to op1 = op1 >>> op2
?:	op1 ? op2 : op3	If op1 is true, returns op2; otherwise, returns op3
[]	See Creating and Using Arrays	Used to declare arrays, to create arrays, and to access array elements
.	See Using Objects	Used to form long names
(params)	See Defining Methods	Delimits a comma-separated list of parameters
(type)	(type) op	Casts (converts) op to the specified type; an exception is thrown if the type of op is incompatible with type
new	See Using Objects and Creating and Using Arrays	Creates a new object or array
instanceof	op1 instanceof op2	Returns true if op1 is an instance of op2

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