In Groovy, not is a logical operator that negates the value of a boolean expression.
Here are some examples of how to use not in Groovy:
1. Negating a boolean value
def isHuman = true
def isAlien = !isHuman
println(isAlien) // Output: false
2. Negating a logical expression
def x = 15
def y = 20
if (!(x < y)) {
println("x is greater than or equal to y")
} else {
println("x is less than y")
}
// Output: x is greater than or equal to y
3. Using not with conditional statements
def isSunny = false
if (!isSunny) {
println("Take an umbrella with you.")
} else {
println("You don't need an umbrella today.")
}
// Output: Take an umbrella with you.
In all these examples, the not operator is used to invert the boolean value or negate the logical expression.