object CollectionsDay2 {
println("Welcome to the Scala worksheet") //> Welcome to the Scala worksheet
val l = List(1,2,3,4,5,6,7,8,9,10) //> l : List[Int] = List(1, 2, 3, 4, 5, 6, 7, 8, 9, 10)
def fn[T](u: T) = u //> fn: [T](u: T)T
fn(l) //> res0: List[Int] = List(1, 2, 3, 4, 5, 6, 7, 8, 9, 10)
val a = Array(1,2,3,4,5,6,7,8,9,10) //> a : Array[Int] = Array(1, 2, 3, 4, 5, 6, 7, 8, 9, 10)
l(3) //> res1: Int = 4
a(3) //> res2: Int = 4
a(3) = 15
a //> res3: Array[Int] = Array(1, 2, 3, 15, 5, 6, 7, 8, 9, 10)
//l(3) = 15
val s = "Vijay" //> s : String = Vijay
val s1 = s.replace('V','A') //> s1 : String = Aijay
s //> res4: String = Vijay
val l1 = l.map(n => n*n) //> l1 : List[Int] = List(1, 4, 9, 16, 25, 36, 49, 64, 81, 100)
l //> res5: List[Int] = List(1, 2, 3, 4, 5, 6, 7, 8, 9, 10)
l1 //> res6: List[Int] = List(1, 4, 9, 16, 25, 36, 49, 64, 81, 100)
val a1 = a.map(n => n.toDouble/10.0) //> a1 : Array[Double] = Array(0.1, 0.2, 0.3, 1.5, 0.5, 0.6, 0.7, 0.8, 0.9, 1.0
//| )
a //> res7: Array[Int] = Array(1, 2, 3, 15, 5, 6, 7, 8, 9, 10)
val a2 = a.filter(x => x % 2 == 0) //> a2 : Array[Int] = Array(2, 6, 8, 10)
val l2 = l.partition(_%2 == 0) //> l2 : (List[Int], List[Int]) = (List(2, 4, 6, 8, 10),List(1, 3, 5, 7, 9))
val i = ("Vijay",38) //> i : (String, Int) = (Vijay,38)
i._1 //> res8: String = Vijay
i._2 //> res9: Int = 38
val (name,age) = i //> name : String = Vijay
//| age : Int = 38
l.reduce(_+_) //> res10: Int = 55
