! concept from the Java knowledge base

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!

subject fact

! has purpose to negate the value of the operand added by: JK, source: Sun Java Tutorial, 2001-10-19 11:35:50.0
indicates logical NOT source: Object Oriented Software Engineering by Lethbridge and Laganière, 2001-10-19 11:35:50.0
is a subtopic of Operators
is an instance of logical operator
is an instance of unary operator added by: JK, 2001-10-19 11:35:50.0

logical operator returns a boolean 2001-10-19 11:37:17.0

unary operator
if a unary operator uses a postfix notation
then the unary operator appears after its operand
2001-10-19 11:38:10.0

if a unary operator uses a prefix notation
then the unary operator appears before its operand

operator evaluates to its result 2001-10-19 11:37:36.0
has precedence
is part of an expression
is evaluated before another operator with lower precedence

syntactic unit has syntax rule
bold = mandatory
italic = non-terminal
normal font = optional
2001-10-19 11:38:04.0

!	has purpose to negate the value of the operand
	indicates logical NOT
	is a subtopic of Operators
	is an instance of logical operator
	is an instance of unary operator
logical operator	returns a boolean
unary operator	if a unary operator uses a postfix notation then the unary operator appears after its operand
unary operator	if a unary operator uses a prefix notation then the unary operator appears before its operand
operator	evaluates to its result
	has precedence
	is part of an expression
	is evaluated before another operator with lower precedence
syntactic unit	has syntax rule bold = mandatory italic = non-terminal normal font = optional