Operators

Operator	Meaning
+, -, *, /, %	Arithmetic; + also concatenates strings
==, !=, <, <=, >, >=	Comparison
&&, ||, !	Logical AND, OR, and NOT
-value	Unary numeric negation

int remainder = 10 % 3;
bool inRange = remainder > 0 && remainder < 100;
string message = "Count: " + remainder;

&& and || short-circuit: the right-hand side is evaluated only when needed. Compound assignment such as += is not currently supported; write i = i + 1 instead.