diff --git a/pom.xml b/pom.xml
index 62dbb86..3c9cce4 100644
--- a/pom.xml
+++ b/pom.xml
@@ -5,6 +5,18 @@
   <groupId>io.zipcoder</groupId>
   <artifactId>polymorphism-1</artifactId>
   <version>0.0.1-SNAPSHOT</version>
+  <build>
+    <plugins>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-compiler-plugin</artifactId>
+        <configuration>
+          <source>14</source>
+          <target>14</target>
+        </configuration>
+      </plugin>
+    </plugins>
+  </build>
   <packaging>jar</packaging>
 
   <name>interfaces-1</name>
diff --git a/src/main/java/io/zipcoder/polymorphism/Cat.java b/src/main/java/io/zipcoder/polymorphism/Cat.java
new file mode 100644
index 0000000..c7fc9b9
--- /dev/null
+++ b/src/main/java/io/zipcoder/polymorphism/Cat.java
@@ -0,0 +1,11 @@
+package io.zipcoder.polymorphism;
+
+public class Cat extends Pet{
+    public Cat(String name) {
+        super(name);
+    }
+
+    public String speak(){
+        return "Purrrr";
+    }
+}
diff --git a/src/main/java/io/zipcoder/polymorphism/Dog.java b/src/main/java/io/zipcoder/polymorphism/Dog.java
new file mode 100644
index 0000000..5ae611b
--- /dev/null
+++ b/src/main/java/io/zipcoder/polymorphism/Dog.java
@@ -0,0 +1,17 @@
+package io.zipcoder.polymorphism;
+
+public class Dog extends Pet{
+    String breed;
+
+    public Dog(String name) {
+        super(name);
+    }
+    public Dog (String name, String breed){
+        super(name);
+        this.breed = breed;
+    }
+
+    public String speak(){
+        return "Woof woof!";
+    }
+}
diff --git a/src/main/java/io/zipcoder/polymorphism/MainApplication.java b/src/main/java/io/zipcoder/polymorphism/MainApplication.java
index 668c627..7ccc0c6 100644
--- a/src/main/java/io/zipcoder/polymorphism/MainApplication.java
+++ b/src/main/java/io/zipcoder/polymorphism/MainApplication.java
@@ -1,4 +1,101 @@
 package io.zipcoder.polymorphism;
 
+import com.sun.tools.javac.Main;
+
+import java.util.ArrayList;
+import java.util.Scanner;
+
 public class MainApplication {
+    ArrayList <Pet> petList = new ArrayList<>();
+    public static void main(String[] args) {
+        MainApplication app = new MainApplication();
+        Scanner in = new Scanner(System.in);
+        System.out.println("How many pets do you have?");
+        int value = in.nextInt();
+        while (value > 0) {
+            System.out.println("Is it a dog, cat, parrot, or other");
+            String type = in.next().toLowerCase();
+            switch (type){
+                case "dog":
+                    System.out.println("What's your dog's name?");
+                    String name = in.next();
+                    app.addDog(name);
+                    System.out.println("Next pet...");
+                    break;
+                case "cat":
+                    System.out.println("What's your cat's name?");
+                    String catName = in.next();
+                    app.addCat(catName);
+                    System.out.println("Next pet...");
+                    break;
+                case "parrot":
+                    System.out.println("What's your parrot's name");
+                    String birdName = in.next();
+                    app.addParrot(birdName);
+                    System.out.println("Next pet...");
+                    break;
+                default:
+                    System.out.println("Name it");
+                    String petName = in.next();
+                    app.addPet(petName);
+                    System.out.println("Next pet...");
+                    break;
+            }
+            value--;
+
+        }
+        System.out.println(app.printListWithSound());
+    }
+
+    public int getValue(String input){
+        return Integer.parseInt(input);
+    }
+
+    public String printList(){
+        StringBuilder print = new StringBuilder();
+        for (Pet pet : petList) {
+            print.append(pet.getName());
+            print.append("\n");
+        }
+        return print.toString();
+    }
+
+    public void addPet(String name){
+        Pet pet = new Pet(name);
+        petList.add(pet);
+
+    }
+
+    public void addDog(String name){
+        Pet pet = new Dog(name);
+        petList.add(pet);
+
+    }
+
+    public void addCat(String name){
+        Pet pet = new Cat(name);
+        petList.add(pet);
+
+    }
+
+    public void addParrot(String name){
+        Pet pet = new Parrot(name);
+        petList.add(pet);
+
+    }
+
+    public int getSize() {
+        return petList.size();
+    }
+
+    public String printListWithSound(){
+        StringBuilder print = new StringBuilder();
+        for (Pet pet : petList) {
+            print.append(pet.getName());
+            print.append(" goes ");
+            print.append(pet.speak());
+            print.append("\n");
+        }
+        return print.toString();
+    }
 }
diff --git a/src/main/java/io/zipcoder/polymorphism/Parrot.java b/src/main/java/io/zipcoder/polymorphism/Parrot.java
new file mode 100644
index 0000000..7358a9d
--- /dev/null
+++ b/src/main/java/io/zipcoder/polymorphism/Parrot.java
@@ -0,0 +1,11 @@
+package io.zipcoder.polymorphism;
+
+public class Parrot extends Pet{
+    public Parrot(String name) {
+        super(name);
+    }
+
+    public String speak(){
+        return "I do what I want";
+    }
+}
diff --git a/src/main/java/io/zipcoder/polymorphism/Pet.java b/src/main/java/io/zipcoder/polymorphism/Pet.java
new file mode 100644
index 0000000..162d28d
--- /dev/null
+++ b/src/main/java/io/zipcoder/polymorphism/Pet.java
@@ -0,0 +1,22 @@
+package io.zipcoder.polymorphism;
+
+public class Pet {
+
+    String name;
+    public Pet(String name) {
+        this.name = name;
+    }
+
+
+    public String getName() {
+        return this.name;
+    }
+
+    public void setName(String newName) {
+        this.name = newName;
+    }
+
+    public String speak(){
+        return "screech";
+    }
+}
diff --git a/src/test/java/io/zipcoder/polymorphism/CatTest.java b/src/test/java/io/zipcoder/polymorphism/CatTest.java
new file mode 100644
index 0000000..23e0d72
--- /dev/null
+++ b/src/test/java/io/zipcoder/polymorphism/CatTest.java
@@ -0,0 +1,35 @@
+package io.zipcoder.polymorphism;
+
+import org.junit.Assert;
+import org.junit.Test;
+
+public class CatTest {
+
+    @Test
+    public void catConstructorTest(){
+        //given
+        String name = "Zazzy";
+
+        //when
+        Pet cat = new Cat(name);
+        String actual = cat.getName();
+
+        //then
+        Assert.assertEquals(name, actual);
+    }
+
+    @Test
+    public void catSpeakTest(){
+        //given
+        String name = "Zazzy";
+        String expected = "Purrrr";
+
+        //when
+        Pet cat = new Cat(name);
+        String sound = cat.speak();
+
+        //then
+        Assert.assertEquals(expected, sound);
+
+    }
+}
diff --git a/src/test/java/io/zipcoder/polymorphism/DogTest.java b/src/test/java/io/zipcoder/polymorphism/DogTest.java
new file mode 100644
index 0000000..d4140df
--- /dev/null
+++ b/src/test/java/io/zipcoder/polymorphism/DogTest.java
@@ -0,0 +1,35 @@
+package io.zipcoder.polymorphism;
+
+import org.junit.Assert;
+import org.junit.Test;
+
+public class DogTest {
+
+    @Test
+    public void dogConstructorTest(){
+        //given
+        String name = "JoJo";
+
+        //when
+        Pet dog = new Dog(name);
+        String actual = dog.getName();
+
+        //then
+        Assert.assertEquals(name, actual);
+    }
+
+    @Test
+    public void dogSpeakTest(){
+        //given
+        String name = "JoJo";
+        String expected = "Woof woof!";
+
+        //when
+        Pet dog = new Dog(name);
+        String sound = dog.speak();
+
+        //then
+        Assert.assertEquals(expected, sound);
+
+    }
+}
diff --git a/src/test/java/io/zipcoder/polymorphism/MainApplicationTest.java b/src/test/java/io/zipcoder/polymorphism/MainApplicationTest.java
index 7daa131..1a6fb3a 100644
--- a/src/test/java/io/zipcoder/polymorphism/MainApplicationTest.java
+++ b/src/test/java/io/zipcoder/polymorphism/MainApplicationTest.java
@@ -1,8 +1,138 @@
 package io.zipcoder.polymorphism;
 
+import org.junit.Assert;
 import org.junit.Test;
 
+import java.util.ArrayList;
+import java.util.Arrays;
+
 public class MainApplicationTest {
 @Test
-    public void testMe(){}
+    public void testMe(){
+    //given
+    String input = "4";
+    Integer expected = 4;
+
+    //when
+    MainApplication app = new MainApplication();
+    Integer value = app.getValue(input);
+
+    //then
+    Assert.assertEquals(expected, value);
+
+    }
+
+    @Test
+    public void printListTest(){
+    //given
+    Pet pet1 = new Pet("Lola");
+    Pet pet2 = new Pet ("Bromley");
+    Pet pet3 = new Pet("Sammie");
+    ArrayList<Pet> petList = new ArrayList<>();
+
+    //when
+    petList.add(pet1);
+    petList.add(pet2);
+    petList.add(pet3);
+    String pet1Name = petList.get(0).getName();
+    String sound = petList.get(0).speak();
+
+    //then
+    Assert.assertEquals("Lola", pet1Name);
+    Assert.assertEquals("screech", sound);
+
+    }
+
+    @Test
+    public void printTest2(){
+    //given
+        Pet pet1 = new Pet("Lola");
+        Pet pet2 = new Pet ("Bromley");
+        Pet pet3 = new Pet("Sammie");
+        MainApplication app = new MainApplication();
+
+        //when
+        app.petList.add(pet1);
+        app.petList.add(pet2);
+        app.petList.add(pet3);
+
+        //then
+        String print = app.printList();
+        System.out.println(print);
+    }
+
+    @Test
+    public void addPetTest(){
+        //given
+        String name = "Scabbers";
+        MainApplication app = new MainApplication();
+        int expected = 1;
+
+        //when
+        app.addPet(name);
+        int actual = app.getSize();
+
+        //then
+        Assert.assertEquals(expected, actual);
+    }
+
+    @Test
+    public void printDogTest(){
+        //given
+        String name = "Bronco";
+        MainApplication app = new MainApplication();
+        String expected = "Woof woof!";
+
+        //when
+        app.addDog(name);
+        String petName = app.petList.get(0).getName();
+        String sound = app.petList.get(0).speak();
+
+        //then
+        Assert.assertEquals(name, petName);
+        Assert.assertEquals(expected, sound);
+
+    }
+
+    @Test
+    public void printDogAndCatTest(){
+        //given
+        String name = "Bronco";
+        String catName = "Persia";
+        MainApplication app = new MainApplication();
+        String expected = "Purrrr";
+
+        //when
+        app.addDog(name);
+        app.addCat(catName);
+        String petName = app.petList.get(1).getName();
+        String sound = app.petList.get(1).speak();
+
+        //then
+        Assert.assertEquals(catName, petName);
+        Assert.assertEquals(expected, sound);
+
+    }
+
+    @Test
+    public void printParrotTest(){
+        //given
+        String name = "Bronco";
+        String catName = "Persia";
+        String parrotName = "Charlie";
+        MainApplication app = new MainApplication();
+        String expected = "I do what I want";
+
+        //when
+        app.addDog(name);
+        app.addCat(catName);
+        app.addParrot(parrotName);
+        String petName = app.petList.get(2).getName();
+        String sound = app.petList.get(2).speak();
+
+        //then
+        Assert.assertEquals(parrotName, petName);
+        Assert.assertEquals(expected, sound);
+
+    }
 }
diff --git a/src/test/java/io/zipcoder/polymorphism/ParrotTest.java b/src/test/java/io/zipcoder/polymorphism/ParrotTest.java
new file mode 100644
index 0000000..22dc384
--- /dev/null
+++ b/src/test/java/io/zipcoder/polymorphism/ParrotTest.java
@@ -0,0 +1,35 @@
+package io.zipcoder.polymorphism;
+
+import org.junit.Assert;
+import org.junit.Test;
+
+public class ParrotTest {
+
+    @Test
+    public void parrotConstructorTest(){
+        //given
+        String name = "Jared";
+
+        //when
+        Pet parrot = new Parrot(name);
+        String actual = parrot.getName();
+
+        //then
+        Assert.assertEquals(name, actual);
+    }
+
+    @Test
+    public void parrotSpeakTest(){
+        //given
+        String name = "Zazzy";
+        String expected = "I do what I want";
+
+        //when
+        Pet parrot = new Parrot(name);
+        String sound = parrot.speak();
+
+        //then
+        Assert.assertEquals(expected, sound);
+
+    }
+}
diff --git a/src/test/java/io/zipcoder/polymorphism/PetTest.java b/src/test/java/io/zipcoder/polymorphism/PetTest.java
new file mode 100644
index 0000000..efefd3a
--- /dev/null
+++ b/src/test/java/io/zipcoder/polymorphism/PetTest.java
@@ -0,0 +1,50 @@
+package io.zipcoder.polymorphism;
+
+import org.junit.Assert;
+import org.junit.Test;
+
+public class PetTest {
+    @Test
+    public void getNameTest(){
+        //given
+        String expectedName = "Ralph";
+        Pet pet = new Pet(expectedName);
+
+        //when
+        String actualName = pet.getName();
+
+        //then
+        Assert.assertEquals(expectedName, actualName);
+
+    }
+
+    @Test
+    public void setNameTest(){
+        //given
+        String initialName = "Ralph";
+        String newName = "Biggie";
+
+        //when
+        Pet pet = new Pet(initialName);
+        pet.setName(newName);
+
+        //then
+        String actualName = pet.getName();
+        Assert.assertEquals(newName, actualName);
+
+    }
+
+    @Test
+    public void speakTest() {
+        //given
+        String newName = "Biggie";
+        String expected = "screech";
+
+        //when
+        Pet pet = new Pet(newName);
+
+        //then
+        String speak = pet.speak();
+        Assert.assertEquals(expected, speak);
+    }
+}