diff --git a/module4/src/main/java/com/hithomelabs/princeton1/module4/Client.java b/module4/src/main/java/com/hithomelabs/princeton1/module4/Client.java
deleted file mode 100644
index 2f651f2..0000000
--- a/module4/src/main/java/com/hithomelabs/princeton1/module4/Client.java
+++ /dev/null
@@ -1,14 +0,0 @@
-/*
- * This source file was generated by the Gradle 'init' task
- */
-package com.hithomelabs.princeton1.module4;
-
-public class Client {
-    public String getGreeting() {
-        return "Hello World!";
-    }
-
-    public static void main(String[] args) {
-        System.out.println(new Client().getGreeting());
-    }
-}
diff --git a/module4/src/test/java/com/hithomelabs/princeton1/module4/AppTest.java b/module4/src/test/java/com/hithomelabs/princeton1/module4/AppTest.java
deleted file mode 100644
index 3a8d330..0000000
--- a/module4/src/test/java/com/hithomelabs/princeton1/module4/AppTest.java
+++ /dev/null
@@ -1,14 +0,0 @@
-/*
- * This source file was generated by the Gradle 'init' task
- */
-package com.hithomelabs.princeton1.module4;
-
-import org.junit.jupiter.api.Test;
-import static org.junit.jupiter.api.Assertions.*;
-
-class AppTest {
-    @Test void appHasAGreeting() {
-        Client classUnderTest = new Client();
-        assertNotNull(classUnderTest.getGreeting(), "app should have a greeting");
-    }
-}