diff --git a/src/main/scala/org/exercises/demo/Demo2CreateRDD.scala b/src/main/scala/org/exercises/exercises1/demo/Demo2CreateRDD.scala
similarity index 89%
rename from src/main/scala/org/exercises/demo/Demo2CreateRDD.scala
rename to src/main/scala/org/exercises/exercises1/demo/Demo2CreateRDD.scala
index 0c6a331..651cfec 100644
--- a/src/main/scala/org/exercises/demo/Demo2CreateRDD.scala
+++ b/src/main/scala/org/exercises/exercises1/demo/Demo2CreateRDD.scala
@@ -1,4 +1,4 @@
-package org.exercises.demo
+package org.exercises.exercises1.demo
 
 import org.apache.spark.{SparkConf, SparkContext}
 
diff --git a/src/main/scala/org/exercises/demo/Demo3RddMap.scala b/src/main/scala/org/exercises/exercises1/demo/Demo3RddMap.scala
similarity index 90%
rename from src/main/scala/org/exercises/demo/Demo3RddMap.scala
rename to src/main/scala/org/exercises/exercises1/demo/Demo3RddMap.scala
index 5397148..90a6012 100644
--- a/src/main/scala/org/exercises/demo/Demo3RddMap.scala
+++ b/src/main/scala/org/exercises/exercises1/demo/Demo3RddMap.scala
@@ -1,4 +1,4 @@
-package org.exercises.demo
+package org.exercises.exercises1.demo
 
 import org.apache.spark.{SparkConf, SparkContext}
 
diff --git a/src/main/scala/org/exercises/demo/DemoS1tart.scala b/src/main/scala/org/exercises/exercises1/demo/DemoS1tart.scala
similarity index 91%
rename from src/main/scala/org/exercises/demo/DemoS1tart.scala
rename to src/main/scala/org/exercises/exercises1/demo/DemoS1tart.scala
index 47c99c0..fddb53e 100644
--- a/src/main/scala/org/exercises/demo/DemoS1tart.scala
+++ b/src/main/scala/org/exercises/exercises1/demo/DemoS1tart.scala
@@ -1,4 +1,4 @@
-package org.exercises.demo
+package org.exercises.exercises1.demo
 
 import org.apache.spark.{SparkConf, SparkContext}
 
diff --git a/src/main/scala/org/exercises/exercises/Exercises1.scala b/src/main/scala/org/exercises/exercises1/exercises/Exercises1.scala
similarity index 88%
rename from src/main/scala/org/exercises/exercises/Exercises1.scala
rename to src/main/scala/org/exercises/exercises1/exercises/Exercises1.scala
index 2f17a2f..f4c0823 100644
--- a/src/main/scala/org/exercises/exercises/Exercises1.scala
+++ b/src/main/scala/org/exercises/exercises1/exercises/Exercises1.scala
@@ -1,4 +1,4 @@
-package org.exercises.exercises
+package org.exercises.exercises1.exercises
 
 /*
 * 练习 1：创建 SparkContext
diff --git a/src/main/scala/org/exercises/exercises/Exercises2.scala b/src/main/scala/org/exercises/exercises1/exercises/Exercises2.scala
similarity index 89%
rename from src/main/scala/org/exercises/exercises/Exercises2.scala
rename to src/main/scala/org/exercises/exercises1/exercises/Exercises2.scala
index 8054865..8ef050e 100644
--- a/src/main/scala/org/exercises/exercises/Exercises2.scala
+++ b/src/main/scala/org/exercises/exercises1/exercises/Exercises2.scala
@@ -1,4 +1,4 @@
-package org.exercises.exercises
+package org.exercises.exercises1.exercises
 
 /*
 * 练习 2：创建 RDD
diff --git a/src/main/scala/org/exercises/exercises/Exercises3.scala b/src/main/scala/org/exercises/exercises1/exercises/Exercises3.scala
similarity index 90%
rename from src/main/scala/org/exercises/exercises/Exercises3.scala
rename to src/main/scala/org/exercises/exercises1/exercises/Exercises3.scala
index 3572b24..29bfaa3 100644
--- a/src/main/scala/org/exercises/exercises/Exercises3.scala
+++ b/src/main/scala/org/exercises/exercises1/exercises/Exercises3.scala
@@ -1,4 +1,4 @@
-package org.exercises.exercises
+package org.exercises.exercises1.exercises
 
 /*
 * 练习 3：filter
diff --git a/src/main/scala/org/exercises/exercises/Exercises4.scala b/src/main/scala/org/exercises/exercises1/exercises/Exercises4.scala
similarity index 90%
rename from src/main/scala/org/exercises/exercises/Exercises4.scala
rename to src/main/scala/org/exercises/exercises1/exercises/Exercises4.scala
index f5bbf41..43ec635 100644
--- a/src/main/scala/org/exercises/exercises/Exercises4.scala
+++ b/src/main/scala/org/exercises/exercises1/exercises/Exercises4.scala
@@ -1,4 +1,4 @@
-package org.exercises.exercises
+package org.exercises.exercises1.exercises
 
 /*
 * 练习 4：map
diff --git a/src/main/scala/org/exercises/exercises/Exercises5.scala b/src/main/scala/org/exercises/exercises1/exercises/Exercises5.scala
similarity index 92%
rename from src/main/scala/org/exercises/exercises/Exercises5.scala
rename to src/main/scala/org/exercises/exercises1/exercises/Exercises5.scala
index 9fdef8a..c25cb7c 100644
--- a/src/main/scala/org/exercises/exercises/Exercises5.scala
+++ b/src/main/scala/org/exercises/exercises1/exercises/Exercises5.scala
@@ -1,4 +1,4 @@
-package org.exercises.exercises
+package org.exercises.exercises1.exercises
 
 import org.apache.spark.{SparkConf, SparkContext}