Logical Operators

Logical operators let you combine or flip Boolean values. They're the building blocks of decision-making in your code.

&& — AND

Both sides must be true for the result to be true.

fun main() {
  val age = 25
  val hasLicense = true
  println(age >= 18 && hasLicense)  // true - both conditions are met
  println(age >= 30 && hasLicense)  // false - age condition fails
}
    

|| — OR

At least one side must be true. Great for "either this or that" situations.

fun main() {
  val isWeekend = false
  val isHoliday = true
  println(isWeekend || isHoliday)  // true - holiday is true
  println(isWeekend || false)      // false - neither is true
}
    

! — NOT

Flips true to false and false to true. Simple but powerful.

fun main() {
  val isRaining = false
  println(!isRaining)  // true
  println(!true)       // false
}