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FunctionVsMethod.scala
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FunctionVsMethod.scala
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import java.io._
import java.math._
import java.security._
import java.text._
import java.util._
import java.util.concurrent._
import java.util.function._
import java.util.regex._
import java.util.stream._
import scala.collection.mutable.Map
//https://examples.javacodegeeks.com/jvm-languages/scala/functional-programming-scala/
object FunctionVsMethod {
def sayHello_method(name: String) = {
"Hello " + name
}
val sayHello_function = (name: String) => {
"Hello " + name
}
def refTransparencyStrBuffer() = {
val x = new StringBuffer("Hello")
val r1 = x.append(", World").toString
println(s"StrBuffer appended direct value - r1 : $r1")
val r2 = x.append(", World").toString
println(s"StrBuffer appended direct value - r2 : $r2")
}
def main(args: Array[String]) {
println(sayHello_method("Hernan"))
println(sayHello_function("Alonso"))
//we cannot say that the append method is referentially transparent
println(refTransparencyStrBuffer)
}
}