Completed Coursera: Kotlin for developers course

src/Conditionals.kt

@@ -0,0 +1,30 @@
+import Color.*;
+
+fun main() {
+    when (RED) {
+        RED -> println("red")
+        BLUE -> println("blue")
+        GREEN -> println("green")
+    }
+
+    when ("y") {
+        "yes", "y" -> println("Yes")
+        else -> println("No")
+    }
+
+    val b: A = B()
+
+    when (b) {
+        // Smart cast b to the type B
+        is B -> println("B")
+        else -> println("Unknown")
+    }
+}
+
+enum class Color {
+    BLUE, GREEN, RED
+}
+
+open class A
+
+class B : A()