Kotlin enum

1 files changed, 13 insertions, 2 deletions

diff --git a/kotlin.html.markdown b/kotlin.html.markdown
index 9336d217..5bbf6847 100644
--- a/kotlin.html.markdown
+++ b/kotlin.html.markdown
@@ -350,11 +350,22 @@ fun helloWorld(val name : String) {
 
 // Enum classes are similar to Java enum types.
 enum class EnumExample {
-    A, B, C
+    A, B, C // Enum constants are separated with commas.
 }
-
 fun printEnum() = println(EnumExample.A) // => A
 
+// Since each enum is an instance of the enum class, they can be initialized as:
+enum class EnumExample(val value: Int) {
+    A(value = 1),
+    B(value = 2),
+    C(value = 3)
+}
+fun printProperty() = println(EnumExample.A.value) // => 1
+
+// Every enum has properties to obtain its name and ordinal(position) in the enum class declaration:
+fun printName() = println(EnumExample.A.name) // => A
+fun printPosition() = println(EnumExample.A.ordinal) // => 0
+
 /*
 The "object" keyword can be used to create singleton objects.
 We cannot instantiate it but we can refer to its unique instance by its name.