diff --git a/src/main/scala/practise1/Demo1VarAndVal.scala b/src/main/scala/practise1/demo/Demo1VarAndVal.scala
similarity index 94%
rename from src/main/scala/practise1/Demo1VarAndVal.scala
rename to src/main/scala/practise1/demo/Demo1VarAndVal.scala
index 8de167e..20f5dbe 100644
--- a/src/main/scala/practise1/Demo1VarAndVal.scala
+++ b/src/main/scala/practise1/demo/Demo1VarAndVal.scala
@@ -1,4 +1,4 @@
-package practise1
+package practise1.demo
 
 object Demo1VarAndVal {
   def main(args: Array[String]): Unit = {
diff --git a/src/main/scala/practise1/Demo2Type.scala b/src/main/scala/practise1/demo/Demo2Type.scala
similarity index 97%
rename from src/main/scala/practise1/Demo2Type.scala
rename to src/main/scala/practise1/demo/Demo2Type.scala
index e2fa4ac..c81edd8 100644
--- a/src/main/scala/practise1/Demo2Type.scala
+++ b/src/main/scala/practise1/demo/Demo2Type.scala
@@ -1,4 +1,4 @@
-package practise1
+package practise1.demo
 
 object Demo2Type {
   def main(args: Array[String]): Unit = {
diff --git a/src/main/scala/practise1/Demo3StringInterpolation.scala b/src/main/scala/practise1/demo/Demo3StringInterpolation.scala
similarity index 91%
rename from src/main/scala/practise1/Demo3StringInterpolation.scala
rename to src/main/scala/practise1/demo/Demo3StringInterpolation.scala
index b0c3ee3..dfc5900 100644
--- a/src/main/scala/practise1/Demo3StringInterpolation.scala
+++ b/src/main/scala/practise1/demo/Demo3StringInterpolation.scala
@@ -1,4 +1,4 @@
-package practise1
+package practise1.demo
 
 object Demo3StringInterpolation {
 
diff --git a/src/main/scala/practise1/Demo4If.scala b/src/main/scala/practise1/demo/Demo4If.scala
similarity index 94%
rename from src/main/scala/practise1/Demo4If.scala
rename to src/main/scala/practise1/demo/Demo4If.scala
index e2928a2..0372ebd 100644
--- a/src/main/scala/practise1/Demo4If.scala
+++ b/src/main/scala/practise1/demo/Demo4If.scala
@@ -1,4 +1,4 @@
-package practise1
+package practise1.demo
 
 object Demo4If {
   def main(args: Array[String]): Unit = {
diff --git a/src/main/scala/practise1/Overall.scala b/src/main/scala/practise1/overall/Overall.scala
similarity index 95%
rename from src/main/scala/practise1/Overall.scala
rename to src/main/scala/practise1/overall/Overall.scala
index 8ebc929..1a070dd 100644
--- a/src/main/scala/practise1/Overall.scala
+++ b/src/main/scala/practise1/overall/Overall.scala
@@ -1,4 +1,4 @@
-package practise1
+package practise1.overall
 
 object Overall {
   def main(args: Array[String]): Unit = {
diff --git a/src/main/scala/practise1/Practise1.scala b/src/main/scala/practise1/practise/Practise1.scala
similarity index 93%
rename from src/main/scala/practise1/Practise1.scala
rename to src/main/scala/practise1/practise/Practise1.scala
index 85e2b52..18031f2 100644
--- a/src/main/scala/practise1/Practise1.scala
+++ b/src/main/scala/practise1/practise/Practise1.scala
@@ -1,4 +1,4 @@
-package practise1
+package practise1.practise
 
 object Practise1 {
   def main(args: Array[String]): Unit = {
diff --git a/src/main/scala/practise1/Practise2.scala b/src/main/scala/practise1/practise/Practise2.scala
similarity index 92%
rename from src/main/scala/practise1/Practise2.scala
rename to src/main/scala/practise1/practise/Practise2.scala
index fb98184..3e7ccb1 100644
--- a/src/main/scala/practise1/Practise2.scala
+++ b/src/main/scala/practise1/practise/Practise2.scala
@@ -1,4 +1,4 @@
-package practise1
+package practise1.practise
 
 object Practise2 {
   def main(args: Array[String]): Unit = {
diff --git a/src/main/scala/practise1/Practise3.scala b/src/main/scala/practise1/practise/Practise3.scala
similarity index 94%
rename from src/main/scala/practise1/Practise3.scala
rename to src/main/scala/practise1/practise/Practise3.scala
index 6c0f9f9..314db34 100644
--- a/src/main/scala/practise1/Practise3.scala
+++ b/src/main/scala/practise1/practise/Practise3.scala
@@ -1,4 +1,4 @@
-package practise1
+package practise1.practise
 
 object Practise3 {
   def main(args: Array[String]): Unit = {
diff --git a/src/main/scala/practise1/Practise4.scala b/src/main/scala/practise1/practise/Practise4.scala
similarity index 96%
rename from src/main/scala/practise1/Practise4.scala
rename to src/main/scala/practise1/practise/Practise4.scala
index d818c73..b49e1b2 100644
--- a/src/main/scala/practise1/Practise4.scala
+++ b/src/main/scala/practise1/practise/Practise4.scala
@@ -1,4 +1,4 @@
-package practise1
+package practise1.practise
 
 import scala.util.Random