Kotlin NOT

Kotlin NOT Operator

Kotlin NOT Operator ! returns the result of the logical NOT gate operation for the given operand or input value.

Syntax

The syntax to use logical NOT operator is

!x

where x is a given boolean value, and ! is the symbol used for logical NOT operator.

Return Value

The above expression returns true if x is false, or false if x is true.

NOT Truth Table

The output of logic NOT gate operation with an operand x is given in the following table.

Examples

fun main() {
    val x = true
    val result = !x
    println("!x = $result")
}

!x = false

fun main() {
    val x = false
    val result = !x
    println("!x = $result")
}

!x = true