diff --git a/W4/src/Circle.java b/W4/src/Circle.java
deleted file mode 100644
index 8d6bf42..0000000
--- a/W4/src/Circle.java
+++ /dev/null
@@ -1,4 +0,0 @@
-package PACKAGE_NAME;
-
-public class Circle {
-}
diff --git a/W4/src/Rectangle.java b/W4/src/Rectangle.java
deleted file mode 100644
index ddd6d25..0000000
--- a/W4/src/Rectangle.java
+++ /dev/null
@@ -1,4 +0,0 @@
-package PACKAGE_NAME;
-
-public class Rectangle {
-}
diff --git a/W4/src/Shape.java b/W4/src/Shape.java
deleted file mode 100644
index 3a5ad1a..0000000
--- a/W4/src/Shape.java
+++ /dev/null
@@ -1,4 +0,0 @@
-package PACKAGE_NAME;
-
-public class Shape {
-}
diff --git a/W4/src/ShapeUtil.java b/W4/src/ShapeUtil.java
deleted file mode 100644
index 75fb22a..0000000
--- a/W4/src/ShapeUtil.java
+++ /dev/null
@@ -1,4 +0,0 @@
-package PACKAGE_NAME;
-
-public class ShapeUtil {
-}
diff --git a/W4/src/Triangle.java b/W4/src/Triangle.java
deleted file mode 100644
index 856df3a..0000000
--- a/W4/src/Triangle.java
+++ /dev/null
@@ -1,4 +0,0 @@
-package PACKAGE_NAME;
-
-public class Triangle {
-}