diff --git a/pom.xml b/pom.xml
index d73c078..7f00e80 100644
--- a/pom.xml
+++ b/pom.xml
@@ -7,6 +7,18 @@
     <groupId>io.zipcoder</groupId>
     <artifactId>Interfaces</artifactId>
     <version>1.0-SNAPSHOT</version>
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-compiler-plugin</artifactId>
+                <configuration>
+                    <source>1.8</source>
+                    <target>1.8</target>
+                </configuration>
+            </plugin>
+        </plugins>
+    </build>
 
     <dependencies>
         <dependency>
diff --git a/src/main/java/io/zipcoder/Application.java b/src/main/java/io/zipcoder/Application.java
index 3a257cb..b032e4e 100644
--- a/src/main/java/io/zipcoder/Application.java
+++ b/src/main/java/io/zipcoder/Application.java
@@ -1,5 +1,59 @@
 package io.zipcoder;
 
+import java.util.ArrayList;
+import java.util.Scanner;
 
 public class Application {
+
+    public ArrayList<Pet> collectionOfPets = new ArrayList<>();
+
+    Scanner scan = new Scanner(System.in);
+
+    public void userDataOfPets(){
+        System.out.println("How many pets do you have?");
+        int numberOfPets = (Integer.valueOf(scan.nextLine()));
+        for (int i = 0; i < numberOfPets; i++){
+            String name;
+            String petType;
+            System.out.println("What is the name of pet " + (i +1) +" ?");
+            name = scan.nextLine();
+            System.out.println("What kind of pet is it "+ (i +1) +" ?");
+            petType = scan.nextLine();
+            addPet(name, petType);
+
+        }
+    }
+    public void addPet(String petName, String petType) {
+        Pet pet = null;
+        if (petType.equalsIgnoreCase("Dog")) {
+            collectionOfPets.add(new Dog(petName));
+
+        } else if (petType.equalsIgnoreCase("Cat")) {
+            collectionOfPets.add(new Cat(petName));
+        } else if (petType.equalsIgnoreCase("Unicorn")) {
+            collectionOfPets.add(new Unicorn(petName));
+        } else {
+            pet = null;
+        }
+
+    }
+        public String printList() {
+            StringBuilder sb = new StringBuilder();
+            for (Pet pet : collectionOfPets) {
+                sb.append(pet.getName());
+                sb.append(" ");
+                        sb.append(pet.getClass().getSimpleName());
+                sb.append(", ");
+
+            }
+            return String.valueOf(sb);
+        }
+
+
+
+    public static void main(String[] args) {
+        Application application = new Application();
+        application.userDataOfPets();
+        application.printList();
+    }
 }
diff --git a/src/main/java/io/zipcoder/Cat.java b/src/main/java/io/zipcoder/Cat.java
new file mode 100644
index 0000000..2aa7891
--- /dev/null
+++ b/src/main/java/io/zipcoder/Cat.java
@@ -0,0 +1,18 @@
+package io.zipcoder;
+
+public class Cat extends Pet {
+    private String petName;
+
+    public Cat(String petName) {
+        this.petName = petName;
+    }
+
+    public String getName() {
+        return this.petName;
+    }
+
+    @Override
+    public String speak() {
+        return "meow";
+    }
+}
diff --git a/src/main/java/io/zipcoder/Dog.java b/src/main/java/io/zipcoder/Dog.java
new file mode 100644
index 0000000..7b0fe49
--- /dev/null
+++ b/src/main/java/io/zipcoder/Dog.java
@@ -0,0 +1,19 @@
+package io.zipcoder;
+
+public class Dog extends Pet {
+
+    private String petName;
+
+    public Dog(String petName) {
+        this.petName = petName;
+    }
+
+    public String getName() {
+        return this.petName;
+    }
+
+    @Override
+    public String speak() {
+        return "woof";
+    }
+}
diff --git a/src/main/java/io/zipcoder/Pet.java b/src/main/java/io/zipcoder/Pet.java
new file mode 100644
index 0000000..7332910
--- /dev/null
+++ b/src/main/java/io/zipcoder/Pet.java
@@ -0,0 +1,36 @@
+package io.zipcoder;
+
+
+import java.util.Comparator;
+
+public abstract class Pet implements Comparable<Pet> {
+
+    private String petName;
+
+    public abstract String speak();
+
+    public String getName() {
+        return petName;
+    }
+
+    public void setPetName(String petName) {
+        this.petName = petName;
+    }
+
+
+    public int compareTo(Pet o) {
+        int compare = this.getName().compareTo(o.getName());
+        int compareClass = this.getClass().getSimpleName().compareTo(o.getClass().getSimpleName());
+        if (compare == 0) {
+            return compareClass;
+        }
+
+        return compare;
+    }
+
+    @Override
+    public String toString() {
+        return super.toString();
+    }
+
+}
diff --git a/src/main/java/io/zipcoder/PetCompare.java b/src/main/java/io/zipcoder/PetCompare.java
new file mode 100644
index 0000000..27550e1
--- /dev/null
+++ b/src/main/java/io/zipcoder/PetCompare.java
@@ -0,0 +1,13 @@
+package io.zipcoder;
+
+import java.util.Comparator;
+
+public class PetCompare implements Comparator<Pet> {
+
+    public int compare(Pet o1, Pet o2) {
+        int compare = o1.getClass().getSimpleName().compareToIgnoreCase(o2.getClass().getSimpleName());
+        if(compare != 0) {
+            return o1.getName().compareToIgnoreCase(o1.getName());
+        }
+        return compare;
+    }}
diff --git a/src/main/java/io/zipcoder/Unicorn.java b/src/main/java/io/zipcoder/Unicorn.java
new file mode 100644
index 0000000..becb905
--- /dev/null
+++ b/src/main/java/io/zipcoder/Unicorn.java
@@ -0,0 +1,23 @@
+package io.zipcoder;
+
+public class Unicorn extends Pet {
+    private String petName;
+
+    public Unicorn(String petName) {
+        this.petName = petName;
+
+        }
+
+        public String getName() {
+
+        return this.petName;
+        }
+
+
+    @Override
+    public String speak() {
+        return "sparkles glitter";
+    }
+
+
+}
diff --git a/src/test/java/io/zipcoder/ApplicationTest.java b/src/test/java/io/zipcoder/ApplicationTest.java
index b744df5..a04775c 100644
--- a/src/test/java/io/zipcoder/ApplicationTest.java
+++ b/src/test/java/io/zipcoder/ApplicationTest.java
@@ -1,5 +1,45 @@
 package io.zipcoder;
 
+import org.junit.Assert;
+import org.junit.Test;
+
+import static org.junit.Assert.*;
 
 public class ApplicationTest {
-}
+
+    @Test
+    public void userDataOfPets() {
+    }
+
+    @Test
+    public void addPet() {
+        //Given
+        Application application = new Application();
+        //When
+        application.addPet("Hugo", "Dog");
+        String expected = "Hugo Dog, ";
+        String actual = application.printList();
+        //Then
+        Assert.assertEquals(expected, actual);
+
+    }
+
+    @Test
+    public void printListTest() {
+            //Given
+            Application application = new Application();
+
+            //When
+            application.addPet("Hugo", "Dog");
+            application.addPet("Bob", "Cat");
+
+            String expected = "Hugo Dog, Bob Cat, ";
+            String actual = application.printList();
+
+            //Then
+            Assert.assertEquals(expected, actual);
+
+        }
+
+
+}
\ No newline at end of file
diff --git a/src/test/java/io/zipcoder/CatTest.java b/src/test/java/io/zipcoder/CatTest.java
new file mode 100644
index 0000000..de50e84
--- /dev/null
+++ b/src/test/java/io/zipcoder/CatTest.java
@@ -0,0 +1,37 @@
+package io.zipcoder;
+
+import org.junit.Assert;
+import org.junit.Test;
+
+import static org.junit.Assert.*;
+
+public class CatTest {
+
+
+    @Test
+    public void speakTest() {
+        //Given
+        Cat cat = new Cat("Sammy");
+
+        //When
+        String expected = "meow";
+        String actual = cat.speak();
+
+        //Then
+        Assert.assertEquals(expected, actual);
+    }
+
+    @Test
+    public void setNameTest() {
+        //Given
+        Cat cat = new Cat("Kitty");
+
+        //When
+        String expected = "Kitty";
+        cat.setPetName(expected);
+        String actual = cat.getName();
+
+        //Then
+        Assert.assertEquals(expected, actual);
+    }
+}
\ No newline at end of file
diff --git a/src/test/java/io/zipcoder/DogTest.java b/src/test/java/io/zipcoder/DogTest.java
new file mode 100644
index 0000000..441aa6b
--- /dev/null
+++ b/src/test/java/io/zipcoder/DogTest.java
@@ -0,0 +1,37 @@
+package io.zipcoder;
+
+import org.junit.Assert;
+import org.junit.Test;
+
+import static org.junit.Assert.*;
+
+public class DogTest {
+
+
+    @Test
+    public void speakTest() {
+        //Given
+        Dog dog = new Dog("Spike");
+
+        //When
+        String expected = "woof";
+        String actual = dog.speak();
+
+        //Then
+        Assert.assertEquals(expected, actual);
+    }
+
+    @Test
+    public void setNameTest() {
+        //Given
+        Dog dog = new Dog("Sally");
+
+        //When
+        String expected = "Sally";
+        dog.setPetName(expected);
+        String actual = dog.getName();
+
+        //Then
+        Assert.assertEquals(expected, actual);
+    }
+}
\ No newline at end of file
diff --git a/src/test/java/io/zipcoder/PetTest.java b/src/test/java/io/zipcoder/PetTest.java
new file mode 100644
index 0000000..796b73c
--- /dev/null
+++ b/src/test/java/io/zipcoder/PetTest.java
@@ -0,0 +1,78 @@
+package io.zipcoder;
+
+import org.junit.Assert;
+import org.junit.Test;
+
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.Collections;
+
+import static org.junit.Assert.*;
+
+public class PetTest {
+
+  @Test
+  public void setNameTest() {
+      //Given
+      Dog dog = new Dog("Molly");
+
+      //When
+      String expected = "Molly";
+      dog.setPetName(expected);
+      String actual = dog.getName();
+
+      //Then
+      Assert.assertEquals(expected, actual);
+  }
+
+  @Test
+    public void compareToTest() {
+      //Given
+      ArrayList<Pet> tempList = new ArrayList<>();
+      Dog bun = new Dog("Bun");
+      Dog mun = new Dog("Mun");
+      Cat fun = new Cat("Fun");
+      Cat hun = new Cat("Hun");
+      Unicorn run = new Unicorn("Run");
+
+      tempList.add(bun);
+      tempList.add(mun);
+      tempList.add(fun);
+      tempList.add(hun);
+      tempList.add(run);
+
+      //When
+      Pet[] expected = {bun, fun, hun, mun, run};
+      Collections.sort(tempList);
+      Pet[] actual = tempList.toArray(new Pet[tempList.size()]);
+
+      //When
+      Assert.assertTrue(Arrays.equals(expected,actual));
+
+  }
+
+  @Test
+    public void compareTest(){
+      //Given
+      Application app = new Application();
+
+      Dog bun = new Dog("Bun");
+      Cat fun = new Cat("Fun");
+      Unicorn run = new Unicorn("Run");
+      Unicorn sun = new Unicorn("Sun");
+
+      app.collectionOfPets.add(bun);
+      app.collectionOfPets.add(fun);
+      app.collectionOfPets.add(run);
+      app.collectionOfPets.add(sun);
+
+      //When
+      Collections.sort(app.collectionOfPets,new PetCompare());
+      Pet[] expected = {bun, fun, run, sun};
+      Pet[] actual = app.collectionOfPets.toArray(new Pet[app.collectionOfPets.size()]);
+
+      //When
+      Assert.assertTrue(Arrays.equals(expected,actual));
+
+  }
+}
\ No newline at end of file
diff --git a/src/test/java/io/zipcoder/UnicornTest.java b/src/test/java/io/zipcoder/UnicornTest.java
new file mode 100644
index 0000000..b67dfcf
--- /dev/null
+++ b/src/test/java/io/zipcoder/UnicornTest.java
@@ -0,0 +1,37 @@
+package io.zipcoder;
+
+import org.junit.Assert;
+import org.junit.Test;
+
+import static org.junit.Assert.*;
+
+public class UnicornTest {
+
+
+    @Test
+    public void speakTest() {
+        //Given
+        Unicorn unicorn = new Unicorn("Shine");
+
+        //When
+        String expected = "sparkles glitter";
+        String actual = unicorn.speak();
+
+        //Then
+        Assert.assertEquals(expected, actual);
+    }
+
+    @Test
+    public void setNameTest() {
+        //Given
+        Unicorn unicorn = new Unicorn("Rainbow");
+
+        //When
+        String expected = "Rainbow";
+        unicorn.setPetName(expected);
+        String actual = unicorn.getName();
+
+        //Then
+        Assert.assertEquals(expected, actual);
+    }
+}
\ No newline at end of file