Expressions Quick Guide

For more information on the order of expression evaluation, see Operator Precedence and Associativity

Type	Application	Example	Notes
arithmetic	doing math with values		+ - * / % an expression with two int values evaluates to an int beware of integer division! an expression with int and double values evaluates to a double since chars are stored as numerical values, you can do math (and comparisons) with them, too!
relational	comparing values		< > <= >= == != these always evaluate to either 1 or 0 (true or false) to determine if a values is within a range, relational expressions must be combined with logical expressions
logical	combining multiple truths		&& || Logical expressions can short circuit or skip evaluation if the first expression determines the result. For example, if the first part of a && expression is 0 (false), the second part won't evaluate because it won't change the overall (false) result if the first part of a || expression is 1 (true), the second part won't evaluate because it won't change the overall (true) result