third class and renaming folders

.gitignore

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+.class
+.DS_Store

Class-01/HelloWorld.java

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+
+/*
+	What's up?
+
+	This is our first application, cool hunh...
+	All the information we are discussing here is available at: https://docs.oracle.com/javase/tutorial/getStarted/application/
+	Never miss the chance of taking a look in this official documentation, they have EVERYTHING there
+
+	It is a bit messy and complicated I KNOW, but as soon as we get used to that is better. Is not so bad after a while, trust me :)
+
+*/
+
+/*
+	YEAH, we start by declaring A CLASS, we gonna call it "Hello World".
+	Since it needs to be callable, it is gonna be public.
+
+	(When would you create a private class? You shouldn't bothet about it, but you can check it here: https://docs.oracle.com/javase/tutorial/java/javaOO/innerclasses.html)
+*/
+public class HelloWorld
+{
+
+	/*
+		Here we are calling the main method, every single application in Java needs that
+		it is basically the sign of where our software starts and the "main" lines of code.
+		The compiler will be like, what can we do today? And then start checking from here,
+
+		[From the documentation]
+			The modifiers public and static can be written in either order (public static or static public),
+			but the convention is to use public static as shown above. You can name the argument anything you want,
+			but most programmers choose "args" or "argv".
+
+			The main method accepts a single argument: an array of elements of type String.
+		[/From the documentation]
+	*/
+	public static void main(String[] args) {
+
+		/*
+			What we want here? You're right! To simply print HelloWorld in the console.
+			For using it, we need to call the print function which is in the System.out class
+
+			You can use wither "print" or "println", the difference is that println adds a new line after printing.
+			The arguments of the class are a simple String			
+ 		*/
+		System.out.println("Hello world");
+
+	}
+}

Class-01/RepetitionAndConditionalStructures.java

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+/*
+  The Java programming language is statically-typed, which means that all
+  variables must first be declared before they can be used. This involves
+  stating the variable's type and name.
+*/
+public class RepetitionAndConditionalStructures{
+
+  public static void main(String[] args) {
+      /*
+        Here we have a situation where Mary and John have different number of oranges each
+        We would like thme to have always the same amount so we will create a while funcion for such
+        Nope, this is not the best way to do it, all we want is to learn the while structure
+      */
+
+      // Let's degine the initial amount of oranges
+      int johnOranges = 3;
+      int maryOranges = 10;
+
+      // For now, WHILE john HAS LESS oranges than Mary, we give one more orange to John
+      while (johnOranges<maryOranges){
+        // This funny instruction adds +1 to the integer, you can use the same with -- (minus)
+        johnOranges++;
+
+        /*
+          NEW: yeap, this format thing is new for us.
+          Read more about the format: https://docs.oracle.com/javase/tutorial/essential/io/formatting.html
+        */
+
+        //System.out.print("Now John has "+johnOranges+" oranges and Mary has "+maryOranges+" \n");
+        System.out.println("Now John has "+johnOranges+" oranges and Mary has "+maryOranges);
+      }
+
+      /*
+          TODO:TODO TODO TODO TODO TODO TODO TODO
+            We are not sure if the problem is Mary or John having more oranges,
+            create a new while structure to avoid any injustice with Mary
+          TODO:TODO TODO TODO TODO TODO TODO TODO
+      */
+
+      /*
+        What about printing all the square roots of the numbers from 0 to 15?
+      */
+      // for an integer variable i, which starts equal zero, while it is lower than 15, add one
+      // for (initialization; termination; increment);
+      for(int i=0; i<15; i++){
+        double r = Math.sqrt(i);
+
+        //System.out.println("The square root of "+i+" is "+r);
+      }
+
+      /*
+        TODO:TODO TODO TODO TODO TODO TODO TODO
+          Let's show that we can do it, and print all the square rise of the EVEN numbers
+        TODO:TODO TODO TODO TODO TODO TODO TODO
+      */
+
+  }
+
+}

Class-02/README.md

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+# Getting through commands
+
+**[LECTURE MATERIAL](http://kitlei.web.elte.hu/segedanyagok/foliak/java/en-java-bsc/01basics.pdf)**
+
+## Exercises
+This module has a HackerRank challenge, you can check it on the following page: [https://www.hackerrank.com/java-group-2018](https://www.hackerrank.com/java-group-2018)
+
+
+## Documentation regarding the examples:
+
+Data Types:
+* [Data Types (integer, char, float etc )](https://docs.oracle.com/javase/tutorial/java/nutsandbolts/datatypes.html)
+
+Loops:
+* [For Loop](https://docs.oracle.com/javase/tutorial/java/nutsandbolts/for.html)
+* [While and do-while loops](https://docs.oracle.com/javase/tutorial/java/nutsandbolts/while.html)
+
+Operators:
+* [Binary and Unary Operators (x+y, x*y, x++. --x etc)](https://docs.oracle.com/javase/tutorial/java/nutsandbolts/op1.html)
+
+Functions:
+* [Our sweet "Sysout" functions print, println, format etc](https://docs.oracle.com/javase/tutorial/essential/io/formatting.html)
+
+Packages:
+* [Math](https://docs.oracle.com/javase/8/docs/api/java/lang/Math.html)
+* [Random](https://docs.oracle.com/javase/7/docs/api/java/util/Random.html)
+
+Arrays:
+* [Java Tutorial](https://docs.oracle.com/javase/tutorial/java/nutsandbolts/arrays.html)

Class-03/README.md

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+# Classes and Objects Class
+
+**[LECTURE MATERIAL](http://kitlei.web.elte.hu/segedanyagok/foliak/java/en-java-bsc/02object-orientation.pdf)**
+
+## Recap:
+- If
+- Else
+- Code blocks
+- Static Methods
+
+
+## We will cover today
+* How to Start a Class
+* How to create an object
+* Properties and reachability
+
+
+
+## What we are going to do Today
+* Create a class Person
+* Create all the private properties to it
+* Create the methods setters, getters, constructor, empty constructor, equals and toString
+* Instantiate 3 Persons
+
+
+
+## Documentation regarding the examples:
+* [OOP Official Java Documentation](https://docs.oracle.com/javase/tutorial/java/concepts/)
+* [Class Members (once again)](https://docs.oracle.com/javase/tutorial/java/javaOO/classvars.html)