Download:
	https://groovy.apache.org/download.html
	
Install:
	Simple and straigth forward instllation

How to verify Goovy installed or not?
	cmd>groovy --version
	cmd>groovy -v
	cmd>where groovy
	
Open Groovy console and start writing code and run.
	
	==> print "Hello World..."

http://groovy-lang.org/ides.html

Groovy plugin install on Eclipse:
	Step 1: https://github.com/groovy/groovy-eclipse/wiki
	Step 2: 
		1. Goto Eclipse IDE and add appropriate Groovy link for your IDD.
		2. Goto Eclipse IDE Marketplace
	Step 3: Restart
	Step 4: Verify Groovy is installed

First Groovy program to print HelloWorld (MyFirstGroovyClass and MyFirstGroovyClass2)
	- Create a Groovy project
	- Create a Groovy class
	- Write code to print Hello World
	- Run the program
	- Run from command line
	- Basic Syntax
	- Comments

Variables
	- How to define variables
	- How to name variables
	- Multiple assignments
	- Variables are used to store information. This information can be of diff type.
		eg. String, Number, Boolean
	
DataTypes
	- Groovy has the following data types
		byte
		short
		int
		long
		float
		double
		Boolean
		char
		String

Opertaors
	- Operators are symbols that tell the compiler to perform some specific opertaion
	
	Reference
	http://docs.groovy-lang.org/latest/html/documentation/core-operators.html
	
Conditional Statements
	- Conditional Structure
		if-else
		switch-case

		keywords
		--------
		upto
		times
		step
		
	- Exception Handling

Strings
	- single quoted '....'
	- double quoted "..."
	- triple single quoted '''....'''
	- triple double quoted """....."""
	- slashy /.../
	- doller slashy $/.../$
	
	
Methods
	- What is a method?
		- named block of code
		- makes code modular and reusable
		- can take parameters
		- can have a return type
	- also called as functions
	- How to create a methods
	- Method parameters
	- Return type
	- Instance methods
	
	Ref: Methods.groovy and Methods1.groovy
	
Closures
	- What are closures
	- How to use closures
	- Why do we need closures
	
	Closures: it is a block of code that can
		- take parameters
		- refer variables
		- can be passed as parameter in a method
		
	Ref: Google Search: What is the need of closures?
	https://medium.com/@dis_is_patrick/practical-uses-for-closures-c65640ae7304
	
List
	- is a structure to store collection of data items
	syntax: [obj1, obj2, obj3, ... objN]
	exmple: 
		[1, 2, 3, 4]
		["java", "GoLang"]
		[1, 2, ['A', 'B'], 3]
		[1, 2, "Java", 2.2] ==> Hetrogenius List
		[] ==> empty list

Maps
	- key-value pair
	- unordered collection
	syntex: [key : value, key : value]
	example: ['subject' : 'Groovy']
	[:] ==> empty map

Ranges
	- creates a list of sequential values
	example: integer from 1 to 10	==> 1..10
			 char from a to z		==> 'a'..'z'
				
					OR 
			 reverse				==> 10..1
			 
	- two types
		- inclusive	==> 1..10
		- exclusive	==> 1..<10
		
Input and Output
	Input:
		System.console().readLine()
	Output:
		- print
		- println
		- printf
		
File IO | How to read Files
	1. How to read file as String
	2. How to read file as List
	3. How to read file as Array
	4. How to read file line by line
	5. How to delete file

FileIO | How to write Files
	
	
OOP | Classes & Objects
	Class - collection of data & methods that represent a real world object
	
	Source code ref: 
		.oop/Fruit
		.oop/Student
		.oop/Car
		.oop/CarObjects
	
OOP | Inheritance and Method Overriding
	Is a process where one class acquires properties (methods and from other class)
	
	Parent	Child
	super	sub
	base	derived
	
	Animal -> Dog -> DogObjects
	Car -> Toyota
	
OOP | Abstract Class
OOP | Interface

Regular Expressions
	https://regexr.com
	http://buildregex.com/