diff --git a/.idea/.gitignore b/.idea/.gitignore
new file mode 100644
index 0000000..26d3352
--- /dev/null
+++ b/.idea/.gitignore
@@ -0,0 +1,3 @@
+# Default ignored files
+/shelf/
+/workspace.xml
diff --git a/.idea/AP-Workshop6.iml b/.idea/AP-Workshop6.iml
new file mode 100644
index 0000000..d6ebd48
--- /dev/null
+++ b/.idea/AP-Workshop6.iml
@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<module type="JAVA_MODULE" version="4">
+  <component name="NewModuleRootManager" inherit-compiler-output="true">
+    <exclude-output />
+    <content url="file://$MODULE_DIR$" />
+    <orderEntry type="inheritedJdk" />
+    <orderEntry type="sourceFolder" forTests="false" />
+  </component>
+</module>
\ No newline at end of file
diff --git a/.idea/misc.xml b/.idea/misc.xml
new file mode 100644
index 0000000..15cec4b
--- /dev/null
+++ b/.idea/misc.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_16" default="true" project-jdk-name="16" project-jdk-type="JavaSDK">
+    <output url="file://$PROJECT_DIR$/out" />
+  </component>
+</project>
\ No newline at end of file
diff --git a/.idea/modules.xml b/.idea/modules.xml
new file mode 100644
index 0000000..8492c7d
--- /dev/null
+++ b/.idea/modules.xml
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectModuleManager">
+    <modules>
+      <module fileurl="file://$PROJECT_DIR$/.idea/AP-Workshop6.iml" filepath="$PROJECT_DIR$/.idea/AP-Workshop6.iml" />
+    </modules>
+  </component>
+</project>
\ No newline at end of file
diff --git a/.idea/vcs.xml b/.idea/vcs.xml
new file mode 100644
index 0000000..35eb1dd
--- /dev/null
+++ b/.idea/vcs.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="" vcs="Git" />
+  </component>
+</project>
\ No newline at end of file
diff --git a/Animal.java b/Animal.java
new file mode 100644
index 0000000..ea71cde
--- /dev/null
+++ b/Animal.java
@@ -0,0 +1,2 @@
+public abstract class Animal {
+}
diff --git a/Bird.java b/Bird.java
new file mode 100644
index 0000000..6434ac9
--- /dev/null
+++ b/Bird.java
@@ -0,0 +1,2 @@
+public abstract class Bird extends Animal{
+}
diff --git a/Cheetah.java b/Cheetah.java
new file mode 100644
index 0000000..66fd2de
--- /dev/null
+++ b/Cheetah.java
@@ -0,0 +1,2 @@
+public class Cheetah extends Mammal{
+}
diff --git a/Eagle.java b/Eagle.java
new file mode 100644
index 0000000..3cbf597
--- /dev/null
+++ b/Eagle.java
@@ -0,0 +1,2 @@
+public abstract class Eagle extends Bird{
+}
diff --git a/Girafe.java b/Girafe.java
new file mode 100644
index 0000000..007f7e1
--- /dev/null
+++ b/Girafe.java
@@ -0,0 +1,2 @@
+public class Girafe extends Mammal{
+}
diff --git a/Mammal.java b/Mammal.java
new file mode 100644
index 0000000..f16cdde
--- /dev/null
+++ b/Mammal.java
@@ -0,0 +1,2 @@
+public abstract class Mammal extends Animal {
+}
diff --git a/Parrot.java b/Parrot.java
new file mode 100644
index 0000000..9e92114
--- /dev/null
+++ b/Parrot.java
@@ -0,0 +1,2 @@
+public class Parrot extends Bird{
+}