second commit

src/main/java/io/zipcoder/interfaces/Instructor.java

@@ -0,0 +1,4 @@
+package io.zipcoder.interfaces;
+
+public class Instructor {
+}

src/main/java/io/zipcoder/interfaces/Teacher.java

@@ -0,0 +1,4 @@
+package io.zipcoder.interfaces;
+
+public interface Teacher {
+}

src/test/java/io/zipcoder/interfaces/InstructorTest.java

@@ -0,0 +1,4 @@
+package io.zipcoder.interfaces;
+
+public class InstructorTest {
+}

src/test/java/io/zipcoder/interfaces/StudentTest.java

@@ -0,0 +1,5 @@
+import static org.junit.Assert.*;
+
+public class StudentTest {
+
+}