Update README.md

Author: kristofer

README.md

@@ -9,4 +9,73 @@
 
 * **Finish Features**
     * Add 5 different fields to the `Person` class.
-    * Ensure each of the methods for manipulating and accessing these fields have appropriate testing in the `TestPerson`.
+    * Ensure each of the methods for manipulating and accessing these fields have appropriate testing in the `TestPerson`.
+
+## Some background
+
+In Java, an object is an instance of a class that represents a real-world entity or concept. A class is a blueprint or template that defines the properties and behaviors of an object.
+
+For example, let's say we want to model a car in Java. We can create a Car class that defines the properties and behaviors of a car, such as its make, model, color, and speed. We can then create Car objects that represent individual cars, each with its own set of values for these properties.
+
+Here is an example of a Car class in Java:
+
+```java
+public class Car {
+    private String make;
+    private String model;
+    private String color;
+    private int speed;
+
+    public Car(String make, String model, String color) {
+        this.make = make;
+        this.model = model;
+        this.color = color;
+        this.speed = 0;
+    }
+
+    public void accelerate(int amount) {
+        speed += amount;
+    }
+
+    public void brake(int amount) {
+        speed -= amount;
+    }
+
+    public String getMake() {
+        return make;
+    }
+
+    public String getModel() {
+        return model;
+    }
+
+    public String getColor() {
+        return color;
+    }
+
+    public int getSpeed() {
+        return speed;
+    }
+}
+```
+
+In this example, the Car class has four properties: make, model, color, and speed. The class also has three methods: accelerate(), brake(), and getters for each property. The accelerate() and brake() methods modify the speed property of the Car object.
+
+To create a Car object, we can use the following code:
+
+```java
+Car myCar = new Car("Toyota", "Corolla", "Red");
+```
+
+This creates a new Car object with the make "Toyota", model "Corolla", and color "Red". The speed property is initialized to 0.
+
+We can then use the methods of the Car class to modify the speed of the car:
+
+```java
+myCar.accelerate(10);
+myCar.brake(5);
+```
+
+This increases the speed of the car by 10 and then decreases it by 5.
+
+Thus objects and classes are fundamental concepts in Java that allow developers to model real-world entities and concepts in their programs. By defining the properties and behaviors of an object in a class, developers can create instances of that object and manipulate them in their programs.