September 2017 Update

Task/Multiple-distinct-objects/Kotlin/multiple-distinct-objects.kotlin

@@ -0,0 +1,26 @@
+// version 1.1.2
+
+class Foo {
+    val id: Int
+
+    init {
+       id = ++numCreated // creates a distict id for each object
+    }
+
+    companion object {
+        private var numCreated = 0
+    }
+}
+
+fun main(args: Array<String>) {
+    val n = 3  // say
+
+    /* correct approach - creates references to distinct objects */
+    val fooList = List(n) { Foo() }
+    for (foo in fooList) println(foo.id)
+
+    /* incorrect approach - creates references to same object */
+    val f = Foo()
+    val fooList2 = List(n) { f }
+    for (foo in fooList2) println(foo.id)
+}