diff --git a/app/src/main/java/com/example/algorithmstudy/pattern/creation/prototype/MyComputer.kt b/app/src/main/java/com/example/algorithmstudy/pattern/creation/prototype/MyComputer.kt
new file mode 100644
index 0000000..78b847a
--- /dev/null
+++ b/app/src/main/java/com/example/algorithmstudy/pattern/creation/prototype/MyComputer.kt
@@ -0,0 +1,8 @@
+package com.example.algorithmstudy.pattern.creation.prototype
+
+data class MyComputer(
+    val motherBoard: String,
+    val graphicCard: String,
+    val cpu: String,
+    val ram: String
+)
\ No newline at end of file
diff --git a/app/src/test/java/com/example/algorithmstudy/AlgorithmTest.kt b/app/src/test/java/com/example/algorithmstudy/algorithm/AlgorithmTest.kt
similarity index 96%
rename from app/src/test/java/com/example/algorithmstudy/AlgorithmTest.kt
rename to app/src/test/java/com/example/algorithmstudy/algorithm/AlgorithmTest.kt
index a8dd181..c1b7098 100644
--- a/app/src/test/java/com/example/algorithmstudy/AlgorithmTest.kt
+++ b/app/src/test/java/com/example/algorithmstudy/algorithm/AlgorithmTest.kt
@@ -1,7 +1,5 @@
-package com.example.algorithmstudy
+package com.example.algorithmstudy.algorithm
 
-import com.example.algorithmstudy.algorithm.BFS
-import com.example.algorithmstudy.algorithm.DFS
 import com.example.algorithmstudy.datastructure.StackSolution
 import com.example.algorithmstudy.kotlin.CalculatorUtil
 import com.example.algorithmstudy.kotlin.StringUtil
diff --git a/app/src/test/java/com/example/algorithmstudy/DPTest.kt b/app/src/test/java/com/example/algorithmstudy/algorithm/DPTest.kt
similarity index 91%
rename from app/src/test/java/com/example/algorithmstudy/DPTest.kt
rename to app/src/test/java/com/example/algorithmstudy/algorithm/DPTest.kt
index 75c80bc..e22285d 100644
--- a/app/src/test/java/com/example/algorithmstudy/DPTest.kt
+++ b/app/src/test/java/com/example/algorithmstudy/algorithm/DPTest.kt
@@ -1,4 +1,4 @@
-package com.example.algorithmstudy
+package com.example.algorithmstudy.algorithm
 
 import com.example.algorithmstudy.java.DPJava
 import org.junit.Test
diff --git a/app/src/test/java/com/example/algorithmstudy/DijstraTest.kt b/app/src/test/java/com/example/algorithmstudy/algorithm/DijstraTest.kt
similarity index 88%
rename from app/src/test/java/com/example/algorithmstudy/DijstraTest.kt
rename to app/src/test/java/com/example/algorithmstudy/algorithm/DijstraTest.kt
index 52aa890..99cbadc 100644
--- a/app/src/test/java/com/example/algorithmstudy/DijstraTest.kt
+++ b/app/src/test/java/com/example/algorithmstudy/algorithm/DijstraTest.kt
@@ -1,6 +1,5 @@
-package com.example.algorithmstudy
+package com.example.algorithmstudy.algorithm
 
-import com.example.algorithmstudy.algorithm.Dijkstra
 import org.junit.Test
 
 class DijstraTest {
diff --git a/app/src/test/java/com/example/algorithmstudy/GreedyTest.kt b/app/src/test/java/com/example/algorithmstudy/algorithm/GreedyTest.kt
similarity index 91%
rename from app/src/test/java/com/example/algorithmstudy/GreedyTest.kt
rename to app/src/test/java/com/example/algorithmstudy/algorithm/GreedyTest.kt
index ed6abdc..1784d2e 100644
--- a/app/src/test/java/com/example/algorithmstudy/GreedyTest.kt
+++ b/app/src/test/java/com/example/algorithmstudy/algorithm/GreedyTest.kt
@@ -1,6 +1,5 @@
-package com.example.algorithmstudy
+package com.example.algorithmstudy.algorithm
 
-import com.example.algorithmstudy.algorithm.Greedy
 import com.example.algorithmstudy.java.GreedyJava
 import com.example.algorithmstudy.kotlin.GreedyUtil
 import org.junit.Test
diff --git a/app/src/test/java/com/example/algorithmstudy/HashTest.kt b/app/src/test/java/com/example/algorithmstudy/algorithm/HashTest.kt
similarity index 88%
rename from app/src/test/java/com/example/algorithmstudy/HashTest.kt
rename to app/src/test/java/com/example/algorithmstudy/algorithm/HashTest.kt
index 7c1ee98..af7f748 100644
--- a/app/src/test/java/com/example/algorithmstudy/HashTest.kt
+++ b/app/src/test/java/com/example/algorithmstudy/algorithm/HashTest.kt
@@ -1,4 +1,4 @@
-package com.example.algorithmstudy
+package com.example.algorithmstudy.algorithm
 
 import com.example.algorithmstudy.kotlin.HashUtil
 import org.junit.Test
diff --git a/app/src/test/java/com/example/algorithmstudy/HeapTest.kt b/app/src/test/java/com/example/algorithmstudy/algorithm/HeapTest.kt
similarity index 94%
rename from app/src/test/java/com/example/algorithmstudy/HeapTest.kt
rename to app/src/test/java/com/example/algorithmstudy/algorithm/HeapTest.kt
index 8153924..2e0d3db 100644
--- a/app/src/test/java/com/example/algorithmstudy/HeapTest.kt
+++ b/app/src/test/java/com/example/algorithmstudy/algorithm/HeapTest.kt
@@ -1,4 +1,4 @@
-package com.example.algorithmstudy
+package com.example.algorithmstudy.algorithm
 
 import com.example.algorithmstudy.java.PriorityQueueUtil
 import com.example.algorithmstudy.kotlin.HeapUtil
diff --git a/app/src/test/java/com/example/algorithmstudy/PatternTest.kt b/app/src/test/java/com/example/algorithmstudy/algorithm/PatternTest.kt
similarity index 91%
rename from app/src/test/java/com/example/algorithmstudy/PatternTest.kt
rename to app/src/test/java/com/example/algorithmstudy/algorithm/PatternTest.kt
index e62fef0..fa2192e 100644
--- a/app/src/test/java/com/example/algorithmstudy/PatternTest.kt
+++ b/app/src/test/java/com/example/algorithmstudy/algorithm/PatternTest.kt
@@ -1,4 +1,4 @@
-package com.example.algorithmstudy
+package com.example.algorithmstudy.algorithm
 
 import com.example.algorithmstudy.pattern.creation.factory.Car
 import org.junit.Test
diff --git a/app/src/test/java/com/example/algorithmstudy/QueueTest.kt b/app/src/test/java/com/example/algorithmstudy/algorithm/QueueTest.kt
similarity index 91%
rename from app/src/test/java/com/example/algorithmstudy/QueueTest.kt
rename to app/src/test/java/com/example/algorithmstudy/algorithm/QueueTest.kt
index e95c350..73c9aaf 100644
--- a/app/src/test/java/com/example/algorithmstudy/QueueTest.kt
+++ b/app/src/test/java/com/example/algorithmstudy/algorithm/QueueTest.kt
@@ -1,4 +1,4 @@
-package com.example.algorithmstudy
+package com.example.algorithmstudy.algorithm
 
 import com.example.algorithmstudy.java.QueueSolution
 import com.example.algorithmstudy.kotlin.QueueUtil
diff --git a/app/src/test/java/com/example/algorithmstudy/SearchTest.kt b/app/src/test/java/com/example/algorithmstudy/algorithm/SearchTest.kt
similarity index 88%
rename from app/src/test/java/com/example/algorithmstudy/SearchTest.kt
rename to app/src/test/java/com/example/algorithmstudy/algorithm/SearchTest.kt
index f273057..cd91d7f 100644
--- a/app/src/test/java/com/example/algorithmstudy/SearchTest.kt
+++ b/app/src/test/java/com/example/algorithmstudy/algorithm/SearchTest.kt
@@ -1,4 +1,4 @@
-package com.example.algorithmstudy
+package com.example.algorithmstudy.algorithm
 
 import com.example.algorithmstudy.kotlin.SearchUtil
 import org.junit.Test
diff --git a/app/src/test/java/com/example/algorithmstudy/SortTest.kt b/app/src/test/java/com/example/algorithmstudy/algorithm/SortTest.kt
similarity index 97%
rename from app/src/test/java/com/example/algorithmstudy/SortTest.kt
rename to app/src/test/java/com/example/algorithmstudy/algorithm/SortTest.kt
index cb036e4..6c2bdc8 100644
--- a/app/src/test/java/com/example/algorithmstudy/SortTest.kt
+++ b/app/src/test/java/com/example/algorithmstudy/algorithm/SortTest.kt
@@ -1,4 +1,4 @@
-package com.example.algorithmstudy
+package com.example.algorithmstudy.algorithm
 
 import com.example.algorithmstudy.kotlin.SortUtil
 import org.junit.Test
diff --git a/app/src/test/java/com/example/algorithmstudy/AbstractFactoryTest.kt b/app/src/test/java/com/example/algorithmstudy/design_pattern/AbstractFactoryTest.kt
similarity index 87%
rename from app/src/test/java/com/example/algorithmstudy/AbstractFactoryTest.kt
rename to app/src/test/java/com/example/algorithmstudy/design_pattern/AbstractFactoryTest.kt
index 009d6f4..988b48f 100644
--- a/app/src/test/java/com/example/algorithmstudy/AbstractFactoryTest.kt
+++ b/app/src/test/java/com/example/algorithmstudy/design_pattern/AbstractFactoryTest.kt
@@ -1,4 +1,4 @@
-package com.example.algorithmstudy
+package com.example.algorithmstudy.design_pattern
 
 import com.example.algorithmstudy.pattern.creation.abstract_factory.HQ
 import com.example.algorithmstudy.pattern.creation.abstract_factory.InfantryUnits
diff --git a/app/src/test/java/com/example/algorithmstudy/design_pattern/PrototypeTest.kt b/app/src/test/java/com/example/algorithmstudy/design_pattern/PrototypeTest.kt
new file mode 100644
index 0000000..42acc18
--- /dev/null
+++ b/app/src/test/java/com/example/algorithmstudy/design_pattern/PrototypeTest.kt
@@ -0,0 +1,21 @@
+package com.example.algorithmstudy.design_pattern
+
+import com.example.algorithmstudy.pattern.creation.prototype.MyComputer
+import org.junit.Test
+
+class PrototypeTest {
+
+    @Test
+    fun testPrototype() {
+        val myOriginalPc = MyComputer(
+            motherBoard = "Asus",
+            cpu = "Intel",
+            ram = "8GB",
+            graphicCard = "Nvidia"
+        )
+
+        println(myOriginalPc)
+        println(myOriginalPc.copy(graphicCard = "Rygen"))
+
+    }
+}
\ No newline at end of file