STRING HANDLING
===============
String Slicing:
===============
==> Acquiring of the part from the string is called as "String Slicing".
==> Slice operator ==> []
Syntax:
	string-object-name[start-index : end-index : step]

s = "Python Fullstack"

# P = 0, y = 1, t = 2 h = 3 o = 4 n = 5 = 6 F = 7 u = 8...

print(s) # full string
print(s[::]) # full string
# start-index ==> empty, string slicing by default from the 1st character
# end-index ==> empty, string slicing can stop at last character by default
# step ==> empty, step difference '1'
print(s[::1]) # full string

print(s[0:6]) # from end-index, end-index-1
print(s[:6])

print(s[7:])

print(s[::-1]) # start at '0' reverse string
print(s[::2])

print(s[-1:-10:-1])

print(s[10:0:-1])
==========================================================
String Concatenation:
=====================
==> Joining of two or more strings into one string is called as "String Concatenation".
ex: "Python"
"Full"
"Stack"
"PythonFullStack"

==> Symbol/Operator: +
Syntax:
	str-obj1 + str-obj2 + str-obj3 + ....

All datatypes:
	classified into two types:
		1) Mutable
		2) Immutable

Integer, float, complex, Boolean, string ==> Immutable

Mutable:
========
	The value of the variable after the definition we can consider to modify
	ex: List, set, dictionary etc.

Immutable:
==========
	The value at variable cannot allow for the modification after the definition are called as "Immutable Data objects".

s1 = "Python "
s2 = "Full"
s3 = "stack"

s = s1+s2+s3

print(s)

======================================================
String Length:
==============
len()
====
	return the total number of characters of the string
	Syntax:
		len(str-object-name)

Note:
====
	len() is not only for strings
	len() for any collection datatype.

s = "Python Fullstack"

print("The total number of characters = ",len(s))

=========================================
How to define the string in run-time/How to define the string dynamically?
===========================================================================
S = "string" ==> compile time definition

input() ==> allow to take the value in run time with string format by default.

Syntax:
	str-obj = input("text")

s = "Python Fullstack" # compile time

print("The total number of characters = ",len(s))

s1 = input("Enter a string:")

print(s1)
print(type(s1))
print(id(s1))
print(len(s1))