added all classes and test classes, made pet class

pom.xml

@@ -7,6 +7,14 @@
     <groupId>io.zipcoder</groupId>
     <artifactId>polymorphism</artifactId>
     <version>1.0-SNAPSHOT</version>
+    <dependencies>
+        <dependency>
+            <groupId>junit</groupId>
+            <artifactId>junit</artifactId>
+            <version>RELEASE</version>
+            <scope>test</scope>
+        </dependency>
+    </dependencies>
 
 
 </project>

src/test/java/io/zipcoder/polymorphism/Cat.java

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

src/test/java/io/zipcoder/polymorphism/CatTest.java

@@ -0,0 +1,7 @@
+package io.zipcoder.polymorphism;
+
+import static org.junit.Assert.*;
+
+public class CatTest {
+
+}

src/test/java/io/zipcoder/polymorphism/Dog.java

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

src/test/java/io/zipcoder/polymorphism/DogTest.java

@@ -0,0 +1,7 @@
+package io.zipcoder.polymorphism;
+
+import static org.junit.Assert.*;
+
+public class DogTest {
+
+}

src/test/java/io/zipcoder/polymorphism/Fish.java

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

src/test/java/io/zipcoder/polymorphism/FishTest.java

@@ -0,0 +1,7 @@
+package io.zipcoder.polymorphism;
+
+import static org.junit.Assert.*;
+
+public class FishTest {
+
+}

src/test/java/io/zipcoder/polymorphism/Pet.java

@@ -1,4 +1,17 @@
 package io.zipcoder.polymorphism;
 
-public class Pet {
+abstract class Pet {
+
+    private String name;
+
+    public Pet( String name){
+        this.name=name;
+    }
+
+    abstract String speak();
+
+    public String getName(){
+     return name;
+    }
+
 }

src/test/java/io/zipcoder/polymorphism/PetTest.java

@@ -0,0 +1,10 @@
+package io.zipcoder.polymorphism;
+
+import static org.junit.Assert.*;
+
+public class PetTest {
+
+    @org.junit.Test
+    public void getName() {
+    }
+}