remove duplicate code

java/Instances.md

@@ -0,0 +1,5 @@
+# Java Example
+
+Relevant Files:
+
+- [main.java](./classes/main.java)

java/instances/Car.java

@@ -1,18 +0,0 @@
-/*
-
-Basic Car class
-just here to make the demonstration in the main file possible
-explanation of the code here will be given in later lessons
-
-*/
-
-public class Car {
-  public String model = "";
-  public String manufacturer = "";
-
-  public void print_info() {
-    System.out.println("Car Information:");
-    System.out.println("- manufacturer: " + this.manufacturer);
-    System.out.println("- model: " + this.model);
-  }
-}

java/instances/README.md

@@ -1,5 +0,0 @@
-# Java Example
-
-Relevant Files:
-
-- [main.java](./main.java)

java/instances/main.java

@@ -1,18 +0,0 @@
-public class main {
-  public static void main(String[] args) {
-    // create a new car and store it in the variable 'a'
-    Car a = new Car();
-    // set some data for that car
-    a.manufacturer = "Benz";
-    a.model = "Velo";
-
-    // do the same for a second car
-    Car b = new Car();
-    b.manufacturer = "Ford";
-    b.model = "Model T";
-
-    // use a function of the car class to print out the information
-    a.print_info();
-    b.print_info();
-  }
-}