LIST IN PYTHON

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List

A list is an ordered data structure with elements enclosed within square brackets and separated by commas.

Program:

Mylist=['Pythonbook', 'Javabook']

Print(Mylist)
 

Output:

['Pythonbook', 'Javabook']

List Traversal

• List traversal is the sequential access to list elements. Index numbers, or List index, are used to access the list's elements
• There are 2 types of indexing:

1. Positive indexing
2. Negative indexing

Positive Indexing:

      To get to the element from the beginning (from left to right), positive indexing is used.

  Index numbers begin with zero.

List index number	Mylist[0]	Mylist[1]	Mylist[2]	Mylist[3]	Mylist[4]
Element	Bike	Car	Bus	bicycle	tricycle

Program:

Mylist=['bike', 'car', 'bus','bicycle',’tricycle’]
Print(Mylist [0])
Print(Mylist [2]) 

Output:

 

bike
  bus

Negative Indexing:

To get to the element from the end (right to left), negative indexing is used.-1 alludes first last thing, - 2 alludes second last thing, - 3 alludes third keep going, etc.

List index number	Mylist[-1]	Mylist[-2]	Mylist[-3]	Mylist[-4]	Mylist[-5]
Element	Python	Java	C++	Html	Css

Program:

 

Mylist=['Python','Java','C++','Html',’Css’]
  Print (Mylist [-1])
 Print (Mylist [-2])
 Print (Mylist [-3])
  Print (Mylist [-4])
 Print (Mylist [-5])

Output:

Css
Html
C++
Java
Python

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