diff --git a/src/main/java/com/hks/kotlin2/HelloWorld.kt b/src/main/java/com/hks/kotlin2/HelloWorld.kt
new file mode 100644
index 0000000..1facbb7
--- /dev/null
+++ b/src/main/java/com/hks/kotlin2/HelloWorld.kt
@@ -0,0 +1,4 @@
+package com.hks.kotlin2
+
+class HelloWorld {
+}
\ No newline at end of file
diff --git a/src/main/java/com/hks/kotlin2/PrintHello.kt b/src/main/java/com/hks/kotlin2/PrintHello.kt
new file mode 100644
index 0000000..2f9d81e
--- /dev/null
+++ b/src/main/java/com/hks/kotlin2/PrintHello.kt
@@ -0,0 +1,5 @@
+package com.hks.kotlin2
+
+fun main(args: Array<String>){
+    println("Hello Kotlin!")
+}
\ No newline at end of file
diff --git a/src/main/java/com/hks/kotlin2/greet.kt b/src/main/java/com/hks/kotlin2/greet.kt
new file mode 100644
index 0000000..640511e
--- /dev/null
+++ b/src/main/java/com/hks/kotlin2/greet.kt
@@ -0,0 +1,6 @@
+package com.hks.kotlin2
+
+fun main(args: Array<String>){
+    val name = if(args.any()) args[0] else "Kotlin"
+    println("Hello, $name!!!")
+}
\ No newline at end of file