Computer Orange Template
Chapter 10:
Computer Science
Class XI ( As per
CBSE Board)
List
Manipulation
New
Syllabus
2019-20
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List Manipulation
It is a collections of items and each item has its own
index value.
Index of first item is 0 and the last item is n-1.Here n is
number of items in a list.
Indexing of list
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List Manipulation
Creating a list
Lists are enclosed in square brackets [ ] and each item
is separated by a comma.
e.g.
list1 = [¡®English', ¡®Hindi', 1997, 2000];
list2 = [11, 22, 33, 44, 55 ];
list3 = ["a", "b", "c", "d"];
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List Manipulation
Access Items From A List
List items can be accessed using its index position.
e.g.
list =[3,5,9]
print(list[0])
3
print(list[1])
5
print(list[2])
9
print('Negative indexing')
output Negative indexing
9
print(list[-1])
5
print(list[-2])
3
print(list[-3])
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List Manipulation
Iterating Through A List
List elements can be accessed using looping
statement.
e.g.
list =[3,5,9]
for i in range(0, len(list)):
print(list[i])
Output
3
5
9
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