diff --git a/src/Main.kt b/src/Main.kt
index a7a5e00..13c3c4e 100644
--- a/src/Main.kt
+++ b/src/Main.kt
@@ -1,3 +1,30 @@
 fun main() {
-    println("Hello World!")
+
+//    var book1 = Book()
+//    book1.author = "Hussain"
+//    book1.title = "Life and Challenges"
+//    book1.yearPublished = 2019
+
+    var book1 = Book("Life and Challenges", "Hussain", 2019)
+    book1.getBookInfo()
+}
+
+//class Book(){
+//    var title: String = ""
+//    var author: String = ""
+//    var yearPublished: Int = 0
+//}
+
+
+
+class Book constructor(var title: String, var author: String, var yearPublished: Int) {
+    var genre: String ?= null
+
+    fun getBookInfo() {
+        if (genre == null) {
+            println("$title, By: $author ($yearPublished)")
+        } else {
+            println("$title, By: $author, ($yearPublished) ($genre)")
+        }
+    }
 }
\ No newline at end of file