Code reformat made.

Author: halilozel1903

src/Set.kt

@@ -51,7 +51,6 @@ fun main() {
     // average method
     println("The average of the element in the set is : ${numberSet.average()}")
 
-
     /*
     Using index functions indexOf(), lastIndexOf() You can get the index of the specified element.
 

src/String.kt

@@ -9,7 +9,6 @@ fun main() {
     // When string type data is addition, the data is written side by side.
     println("$x + $y = $z") // 2 + 3 = 23
 
-
     // String Type A Value
     val languageName = "Kotlin"
 

src/TypeConversions.kt

@@ -30,7 +30,6 @@ fun main() {
     // 54 + 11 = 65
     println("number2 = ${number2 + 11}")
 
-
     // smaller types are NOT implicitly converted to bigger types.
     // This means that we cannot assign a value of type Byte to an Int variable without an explicit conversion