Update README.md

Author: SAMIR PAUL

README.md

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-# SamirPaul1.JAVA
+## Overview
+
+### Introduction
+
+We love Programming. Our aim with this course is to create a love for Programming.
+
+Java is one of the most popular programming languages. Java offers both object oriented and functional programming features. 
+
+We take an hands-on approach using a combination of JShell(An awesome new feature in Java 9) and Eclipse as an IDE to illustrate more than 200 Java Coding Exercises, Puzzles and Code Examples.  
+
+In more than 250 Steps, we explore the most important Java Programming Language Features
+- Basics of Java Programming - Expressions, Variables and Printing Output
+- Java Operators - Java Assignment Operator, Relational and Logical Operators, Short Circuit Operators
+- Java Conditionals and If Statement
+- Methods - Parameters, Arguments and Return Values
+- An Overview Of Java Platform - java, javac, bytecode, JVM and Platform Independence - JDK vs JRE vs JVM
+- Object Oriented Programming - Class, Object, State and Behavior
+- Basics of OOPS - Encapsulation, Abstraction, Inheritance and Polymorphism
+- Basics about Java Data Types - Casting, Operators and More
+- Java Built in Classes - BigDecimal, String, Java Wrapper Classes
+- Conditionals with Java - If Else Statement,  Nested If Else, Java Switch Statement, Java Ternary Operator
+- Loops - For Loop, While Loop in Java, Do While Loop, Break and Continue
+- Immutablity of Java Wrapper Classes, String and BigDecimal
+- Java Dates - Introduction to LocalDate, LocalTime and LocalDateTime
+- Java Array and ArrayList - Java String Arrays, Arrays of Objects, Primitive Data Types, toString and Exceptions
+- Introduction to Variable Arguments 
+- Basics of Designing a Class - Class, Object, State and Behavior. Deciding State and Constructors. 
+- Understanding Object Composition and Inheritance 
+- Java Abstract Class and Interfaces. Introduction to Polymorphism.
+- Java Collections - List Interface(ArrayList, LinkedList and Vector), Set Interface (HashSet, LinkedHashSet and TreeSet), Queue Interface (PriorityQueue) and Map Interface (HashMap, HashTable, LinkedHashMap and TreeMap() - Compare, Contrast and Choose
+- Generics - Why do we need Generics? Restrictions with extends and Generic Methods, WildCards - Upper Bound and Lower Bound.
+- Functional Programming - Lambda Expression, Stream and Operations on a Stream (Intermediate Operations - Sort, Distinct, Filter,  Map and Terminal Operations - max, min, collect to List), Functional Interfaces - Predicate Interface,Consumer Interface, Function Inteface for Mapping, Method References - static and instance methods
+- Introduction to Threads and MultiThreading - Need for Threads
+- Implementing Threads - Extending Thread Class and Implementing Runnable Interface
+- States of a Thread and Communication between Threads
+- Introduction to Executor Service - Customizing number of Active Threads. Returning a Future,  invokeAll and invokeAny
+- Introduction to Exception Handling - Your Thought Process during Exception Handling. try, catch and finally. Exception Hierarchy - Checked Exceptions vs Unchecked Exceptions. Throwing an Exception. Creating and Throwing a Custom Exception - CurrenciesDoNotMatchException. Try with Resources - New Feature in Java 7.
+- List files and folders in Directory with Files list method, File walk method and find methods. Read and write from a File.
+
+### What You will learn
+
+- You will learn how to think as a Java Programmer
+- You will learn how to start your journey as a Java Programmer
+- You will learn the basics of Eclipse IDE and JShell 
+- You will learn to develop awesome object oriented programs with Java
+- You will solve a wide variety of hands-on exercises on the topics discussed below
+- You will learn the basics of programming - variables, choosing a data type, conditional execution, loops, writing great methods, breaking down problems into sub problems and implementing great Exception Handling.
+- You will learn the basics of Object Oriented Programming - Intefaces, Inheritance, Abstract Class and Constructors
+- You will learn the important concepts of Object Oriented Programming - Abstraction, Inheritance, Encapsulation and Polymorphism
+- You will learn to do basic functional programming with Java
+- You will learn the basics of MultiThreading - with Executor Service
+- You will learn about a wide variety of Collections - List, Map, Set and Queue Interfaces
+
+
+### Requirements
+- Connectivity to Internet to download Java 9 and Eclipse.
+- We will help you install Java9 with JShell and Eclipse.