diff --git a/chapter_01/activity_1.01/main.go b/chapter_01/activity_1.01/main.go
index 6db1d0d..0e3a7d1 100644
--- a/chapter_01/activity_1.01/main.go
+++ b/chapter_01/activity_1.01/main.go
@@ -4,7 +4,6 @@ import (
   "fmt"
 )
 
-
 func main() {
 
   firstName := "Torsten"
@@ -17,4 +16,4 @@ func main() {
   fmt.Println(age)
   fmt.Println(peanutAllergy)
 
-}
\ No newline at end of file
+}
diff --git a/chapter_01/exercise_1.01/main.go b/chapter_01/exercise_1.01/main.go
index e96dc41..b4fa3a2 100644
--- a/chapter_01/exercise_1.01/main.go
+++ b/chapter_01/exercise_1.01/main.go
@@ -7,7 +7,6 @@ import (
   "time"
 )
 
-
 func main() {
 
   rand.Seed(time.Now().UnixNano())
@@ -18,4 +17,4 @@ func main() {
 
   fmt.Println(stars)
 
-}
\ No newline at end of file
+}
diff --git a/chapter_01/exercise_1.02/main.go b/chapter_01/exercise_1.02/main.go
index 63f5fcc..1c58609 100644
--- a/chapter_01/exercise_1.02/main.go
+++ b/chapter_01/exercise_1.02/main.go
@@ -2,10 +2,8 @@ package main
 
 import "fmt"
 
-
 var foo string = "bar"
 
-
 func main() {
 
   var baz string = "qux"
diff --git a/chapter_01/exercise_1.03/main.go b/chapter_01/exercise_1.03/main.go
index 2d2c616..57f6700 100644
--- a/chapter_01/exercise_1.03/main.go
+++ b/chapter_01/exercise_1.03/main.go
@@ -5,16 +5,14 @@ import (
   "time"
 )
 
-
 var (
-  Debug bool = false
-  LogLevel string = "info"
+  Debug       bool      = false
+  LogLevel    string    = "info"
   startUpTime time.Time = time.Now()
 )
 
-
-func main () {
+func main() {
 
   fmt.Println(Debug, LogLevel, startUpTime)
 
-}
\ No newline at end of file
+}
diff --git a/chapter_01/exercise_1.04/main.go b/chapter_01/exercise_1.04/main.go
index 35f4cb3..9abb5ed 100644
--- a/chapter_01/exercise_1.04/main.go
+++ b/chapter_01/exercise_1.04/main.go
@@ -5,14 +5,12 @@ import (
   "time"
 )
 
-
 var (
-  Debug bool
-  LogLevel = "info"
+  Debug       bool
+  LogLevel    = "info"
   startUpTime = time.Now()
 )
 
-
 func main() {
 
   fmt.Println(Debug, LogLevel, startUpTime)
diff --git a/chapter_01/exercise_1.05/main.go b/chapter_01/exercise_1.05/main.go
index 7fe499e..c78d832 100644
--- a/chapter_01/exercise_1.05/main.go
+++ b/chapter_01/exercise_1.05/main.go
@@ -5,7 +5,6 @@ import (
   "time"
 )
 
-
 func main() {
 
   Debug := false
@@ -14,4 +13,4 @@ func main() {
 
   fmt.Println(Debug, LogLevel, startUpTime)
 
-}
\ No newline at end of file
+}
diff --git a/chapter_01/exercise_1.06/main.go b/chapter_01/exercise_1.06/main.go
index 3957e03..df4947d 100644
--- a/chapter_01/exercise_1.06/main.go
+++ b/chapter_01/exercise_1.06/main.go
@@ -5,14 +5,12 @@ import (
   "time"
 )
 
-
 func getConfig() (bool, string, time.Time) {
 
   return false, "info", time.Now()
 
 }
 
-
 func main() {
 
   Debug, LogLevel, startUpTime := getConfig()
diff --git a/chapter_01/exercise_1.07/main.go b/chapter_01/exercise_1.07/main.go
index 6f21398..ef18356 100644
--- a/chapter_01/exercise_1.07/main.go
+++ b/chapter_01/exercise_1.07/main.go
@@ -2,10 +2,8 @@ package main
 
 import "fmt"
 
-
 var defaultOffset = 10
 
-
 func main() {
 
   offset := 5
@@ -16,4 +14,4 @@ func main() {
   offset = offset + defaultOffset
   fmt.Println(offset)
 
-}
\ No newline at end of file
+}
diff --git a/chapter_01/exercise_1.08/main.go b/chapter_01/exercise_1.08/main.go
index 6984439..a9c59c3 100644
--- a/chapter_01/exercise_1.08/main.go
+++ b/chapter_01/exercise_1.08/main.go
@@ -2,11 +2,10 @@ package main
 
 import "fmt"
 
-
 func main() {
 
   query, limit, offset := "bat", 10, 0
   query, limit, offset = "ball", offset, 20
   fmt.Println(query, limit, offset)
 
-}
\ No newline at end of file
+}
diff --git a/chapter_01/exercise_1.09/main.go b/chapter_01/exercise_1.09/main.go
index 969bb17..51ec206 100644
--- a/chapter_01/exercise_1.09/main.go
+++ b/chapter_01/exercise_1.09/main.go
@@ -2,7 +2,6 @@ package main
 
 import "fmt"
 
-
 func main() {
 
   // Main course
@@ -36,4 +35,4 @@ func main() {
     fmt.Println("With this visit, you've earned a reward.")
   }
 
-}
\ No newline at end of file
+}
diff --git a/chapter_01/exercise_1.10/main.go b/chapter_01/exercise_1.10/main.go
index 4779738..ccba86a 100644
--- a/chapter_01/exercise_1.10/main.go
+++ b/chapter_01/exercise_1.10/main.go
@@ -2,7 +2,6 @@ package main
 
 import "fmt"
 
-
 func main() {
 
   count := 5
@@ -19,4 +18,4 @@ func main() {
   name += " Smith"
   fmt.Println(name)
 
-}
\ No newline at end of file
+}
diff --git a/chapter_01/exercise_1.11/main.go b/chapter_01/exercise_1.11/main.go
index 7147898..65d8a37 100644
--- a/chapter_01/exercise_1.11/main.go
+++ b/chapter_01/exercise_1.11/main.go
@@ -2,7 +2,6 @@ package main
 
 import "fmt"
 
-
 func main() {
 
   visits := 15
@@ -12,4 +11,4 @@ func main() {
   fmt.Println("Gold member    :", visits > 20 && visits <= 30)
   fmt.Println("Platinum member:", visits > 30)
 
-}
\ No newline at end of file
+}
diff --git a/chapter_01/exercise_1.12/main.go b/chapter_01/exercise_1.12/main.go
index 6c80272..0d304c4 100644
--- a/chapter_01/exercise_1.12/main.go
+++ b/chapter_01/exercise_1.12/main.go
@@ -5,7 +5,6 @@ import (
   "time"
 )
 
-
 func main() {
 
   var count int
@@ -26,4 +25,4 @@ func main() {
   var startTime time.Time
   fmt.Printf("Start: %#v \n", startTime)
 
-}
\ No newline at end of file
+}
diff --git a/chapter_01/exercise_1.13/main.go b/chapter_01/exercise_1.13/main.go
index 5d5f36a..77fca82 100644
--- a/chapter_01/exercise_1.13/main.go
+++ b/chapter_01/exercise_1.13/main.go
@@ -5,12 +5,11 @@ import (
   "time"
 )
 
-
 func main() {
 
   var count1 *int
   count2 := new(int)
-  countTemp :=5
+  countTemp := 5
   count3 := &countTemp
   t := &time.Time{}
 
@@ -19,4 +18,4 @@ func main() {
   fmt.Printf("count3: %#v\n", count3)
   fmt.Printf("time  : %#v\n", t)
 
-}
\ No newline at end of file
+}
diff --git a/test/main.go b/test/main.go
index c5b35a1..c47c63f 100644
--- a/test/main.go
+++ b/test/main.go
@@ -1,7 +1,9 @@
 package main
+
 import (
   "fmt"
 )
+
 func main() {
   fmt.Println("This is a test")
-}
\ No newline at end of file
+}