first commit

Lecture Notes/src/Week2/Animals/Animal.java

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+package Week2.Animals;
+
+public class Animal {
+
+    protected String name;
+
+    public Animal(String name) {
+        this.name = name;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public String speak() {
+        return "";
+    }
+
+    @Override
+    public String toString() {
+        return "I am an animal called " + name;
+    }
+}

Lecture Notes/src/Week2/Animals/Cat.java

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+package Week2.Animals;
+
+public class Cat extends Animal{
+    public Cat(String name) {
+        super(name);
+    }
+
+    @Override
+    public String speak() {
+        return "meow!";
+    }
+
+    @Override
+    public String toString() {
+        return "I am a cat and my name is " + name;
+    }
+}

Lecture Notes/src/Week2/Animals/Dog.java

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+package Week2.Animals;
+
+public class Dog extends Animal{
+    public Dog (String name) {
+        super(name);
+    }
+
+    @Override
+    public String speak() {
+        return "woof!";
+    }
+
+    @Override
+    public String toString() {
+        return super.toString();
+    }
+}

Lecture Notes/src/Week2/InClassExercise1/Course.java

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+package Week2.InClassExercise1;
+
+import java.util.ArrayList;
+
+public class Course {
+    private ArrayList<Section> sections = new ArrayList<>();
+    private String prefix;
+    private int courseNumber;
+
+    public void display() {
+
+    }
+
+    @Override
+    public boolean equals(Object o) {
+        return false;
+    }
+}

Lecture Notes/src/Week2/InClassExercise1/Person.java

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+package Week2.InClassExercise1;
+
+
+public class Person {
+
+    private String name;
+
+}

Lecture Notes/src/Week2/InClassExercise1/Section.java

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+package Week2.InClassExercise1;
+
+import java.util.ArrayList;
+
+public class Section {
+
+    private ArrayList<Person> students = new ArrayList<>();
+    private String classroom;
+
+    public int numStudents() {
+        return 0;
+    }
+
+    public void display() {
+
+    }
+}

Lecture Notes/src/Week2/InClassExercise1/Student.java

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+package Week2.InClassExercise1;
+
+import java.util.ArrayList;
+
+public class Student {
+
+    private ArrayList<Integer> quizzes = new ArrayList<>();
+
+    public double quizAverage() {
+        return 0.0;
+    }
+
+    public void display(){
+
+    }
+}

Lecture Notes/src/Week2/InClassExercise1/Teacher.java

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+package Week2.InClassExercise1;
+
+public class Teacher extends Person {
+
+    public double salary;
+
+    public double calculateTaxes() {
+        return 0.0;
+    }
+}

Lecture Notes/src/Week2/InheritanceDriver.java

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+package Week2;
+
+import Week2.Animals.Animal;
+import Week2.Animals.Cat;
+
+public class InheritanceDriver {
+    public static void main(String[] args) {
+        Animal a = new Animal("Fred");
+        System.out.println(a);
+
+        Cat c = new Cat("Fluffy");
+        System.out.println(c);
+    }
+}