Data commit

Task/Associative-array-Creation/Kotlin/associative-array-creation.kotlin

@@ -0,0 +1,26 @@
+fun main(args: Array<String>) {
+    // map definition:
+    val map = mapOf("foo" to 5,
+                    "bar" to 10,
+                    "baz" to 15,
+                    "foo" to 6)
+
+    // retrieval:
+    println(map["foo"]) // => 6
+    println(map["invalid"]) // => null
+
+    // check keys:
+    println("foo" in map) // => true
+    println("invalid" in map) // => false
+
+    // iterate over keys:
+    for (k in map.keys) print("$k ")
+    println()
+
+    // iterate over values:
+    for (v in map.values) print("$v ")
+    println()
+
+    // iterate over key, value pairs:
+    for ((k, v) in map) println("$k => $v")
+}