Practice questions on Datatypes and Datastructure

Here are some examples for your practice:

Examples on Datatypes.

1.)

j = 100

k = 99

j != k

k = j

print(k)

2.) c = 4*1**4

print(c)

3.)b = int(22.22+2/2)

print(b)

4.)a = "7"

b = int(a)

print(len('apple')*a)

Example on Datastructures

6.) a = 1,2,3,4,5

print(type(a))

7.)Tuple1= ("Black",[1,2,3],[4,5,6])

print(Tuple[1][1])

8.)Tuple2= "White",10,"Green"

a,b,c=Tuple2

print(a)

9.)Tuple3=(1,2,3,4,5,6,7,8,9)

print(Tuple3[2:5],Tuple3[:4],Tuple[3:])

10.)Tuple4=(10,20,30,40,50)

print(Tuple4[-1])

print(Tuple4[-4:-1])

11.)List1 = [4,3,9,7]

List1[1:4] = [2,8,6]

print(List1)

12.)List2=['xyz','zyx','yxz']

print(max(List2))

11.)a,b,*c,d,e=[1,2,3,4,5,6]

print(c)

12.)Set1={"Lion","Tiger","Zebra"}

Set1.update("Rhino")

print(Set1)

13.)Set2={"Lion","Tiger","Zebra"}

y={"Rhino"}

Set2.update(y)

print(Set2)

14.)d = {}

print(type(d))

15.) Exercise on list:

You have a list of colors

colors = ["Red","Green","Violet","Orange","Yellow"]

Using this find out:

1.Length of the list.

2.Add 'White' after 'Red'.

3.Count number of time 'Violet' occured.

4.Now remove 'Orange' and replace it with 'Brown'

5,Sort the Colors list in alphabetical order.

16.)Exercise on Set

You have a set

Set1 = {1,2,3,4,"a","b","c","d","e"}

1.add 7 into set.

2.insert "z","x","v" at a time into set.

3.remove "a".

4.perform pop operation on the set.

5.typecast it to some other datastructure.

17.) Exercise on Dictionary

Create a Dictionay with employee id as key and name as value.

1.Print keys

2.Print values

3.Pop employee 3

4.change name of employee with employee id :3

5.Enter new employee id and employee name into dictionary .

-Rushi Mahapure

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Datatypes in Python...

Basic datatypes in python are String Integer Float Complex Numbers Built-in datastructures list tuple set dictionary Built-in methods on String: stringname.capitalize() - First letter of string is converted in uppercase stringname.casefold() - Converts string into lower case stringname.upper()-Coverts the whole string into uppercase. stringname.lower()-Converts the whole string into lowercase. stringname.count()- Prints the number of times a specific value is occurred stringname.isnumeric() - Returs whether the values in string are numeric or not stringname.isupper() - Returns whether the string is in uppercase or not i.e True or False stringname.islower() - Returns whether the string is in lowercase or note i.e True or False stringname.startswith("suffix") - Tells whether the string starts with particular suffix stringname.endswith("prefix") - Tells whether the string ends with particular prefix for more similar methods run print(dir("stringname")) L...

If Else Statement

Decision making is required when we want to execute a code if a specific condition is satisfied. If else is used for Decision Making Syntax: if test expression: Code to be executed if condition in True . else: Code to be executed if condition in False. Here code will only be executed if the condition provided for IF statement is True. Else it will Run the code under the Else Statement Sample Example on If else: a = 10 if a == 10: print("The Number is 10") else: print("The Number is not 10") if else and elif flow chart: If elif else: elif if is short cut for else if. If the the first if condition is False it goes on to check next elif condition and so on. If all the conditions are false it will enter into else and execute the code inside else. Syntax: if test expression 1: Code to be exec...

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