If Expressions

Choose a value with an if expression.

IfExpression.scala

object Main {
  def main(args: Array[String]): Unit = {
    val temperature = 
    val status = if (temperature >= 75) {
      "warm"
    } else {
      "cool"
    }

    println("temperature=" + temperature)
    println("status=" + status)
  }
}

object Main {
  def main(args: Array[String]): Unit = {
    val temperature = 
    val status = if (temperature >= 75) {
      "warm"
    } else {
      "cool"
    }

    println("temperature=" + temperature)
    println("status=" + status)
  }
}

object Main {
  def main(args: Array[String]): Unit = {
    val temperature = 
    val status = if (temperature >= 75) {
      "warm"
    } else {
      "cool"
    }

    println("temperature=" + temperature)
    println("status=" + status)
  }
}

if-expression An if expression chooses one of two values. The chosen value can be assigned to a name.