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FirstStepsExercise02Calculator.scala
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FirstStepsExercise02Calculator.scala
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package day01session01exercise.first_steps
/*
* This file is part of the "Scala Hack Session".
*
* Scala Hack Session is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Scala Hack Session is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Scala Hack Session. If not, see <http://www.gnu.org/licenses/>.
*
* =================================================================================
*
*/
object Calculator {
def add(a: Double, b: Double) = ???
def subtract(a: Int, b: Double) = ???
def multiply(a: Double, b: Double) = ???
def divide(a: Double, b: Double) = ???
}
object CalcApplication {
//it is also possible to import one("MyClass.someFunction"), more ("MyClass.{f1, f3}")or all functions of a class ("MyClass._")
import Calculator._
def main(args: Array[String]) {
val a = 6
val b = 3
//Note: the s"" is a function from StringContext
println(s"$a + $b = ${add(a,b)}")
println(s"$a - $b = ${subtract(a,b)}")
println(s"$a * $b = ${multiply(a,b)}")
println(s"$a / $b = ${divide(a,b)}")
}
}