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TN 12th Computer Applications மின்னணு தரவு பரிமாற்றம் Sample Question Papers Study Material - QB365 Set A

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12th Standard

TN 12th Computer Applications மின் - வணிக பாதுகாப்பு அமைப்புகள் Sample Question Papers Study Material - QB365 Set A

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12th Standard

TN 12th Computer Applications மின்னணு செலுத்தல் முறைகள் Sample Question Papers Study Material - QB365 Set A

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12th Standard

TN 12th Computer Applications மின் - வணிகம் Sample Question Papers Study Material - QB365 Set A

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12th Standard

TN 12th Computer Applications திறந்த மூல கருத்துருக்கள் Sample Question Papers Study Material - QB365 Set A

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12th Standard

TN 12th Computer Applications வலையமைப்பு வடமிடல் Sample Question Papers Study Material - QB365 Set A

12th Standard English Medium Computer Science Subject Strings and String Manipulations Book Back 3 Mark Questions with Solution

Published on: 03/06/2021

QB365 provides detailed and simple solution for every book back questions in class 12 Computer Science subject.It will helps to get more idea about question pattern in every book back questions with solution.

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Std: 12th Standard - Computer Science

chapter: - Book back Questions

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Questions:

Generic 3

5 x 3 = 15

Write a note about count( ) function in python.

What is the use of format( )? Give an example.

What will be the output of the given python program?
str1 = "welcome"
str2 = "to school"
str3 = str1[:2] + str2[len(str2)-2:]
print (str3)

Write a short about the followings with suitable example:
(a) capitalize( )
(b) swapcase( )

Write a Python program to display the given pattern
C O M P U T E R
C O M P U T E
C O M P U T
C O M P U
C O M P
C O M
C O
C

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Answers Key:

Generic 3

5 x 3 = 15

Syntax	Description	Example
count (str,beg,end)	Returns the number of substrings Occurs within the given range. Remember that substring may be a single character. Range (beg and end) arguments are optional. If it is not given, python searched in whole string. Search is case sensitive.	>>>str1="Raja Raja Chozhan" >>>print(str1.count("Raja")) 2 >>>print(str1.count("r")) 0 >>>print(str1.count("R")) 2 >>>print(str1.count("a")) 5 >>>print(str1.count('a',0,5)) 2 >>>print(str1.count('a',11)) 1

(i) The format( ) function used with strings is very versatile and powerful function used for formatting strings.
(ii) The curly braces {} are used as placeholders or replacement fields which get replaced along with format( ) function.
Example:
num1 = int (input("Number 1:"))
num2 = int (input("Number 2:"))
print ("The, sum of {} and {} is {}". format (num1, num2, (num1 + num2)))
Output:
Number 1: 34
Number 2: 54
The sum of 34 and 54 is 88.

Output:
Weool

Syntax	Description	Example
(a) capitalize()	Used to capitalize the first character of the string	>>> city="chennai" >>> print(city, capitalize( )) Chennai
(b) swapcase( )	It will change case of every character to its opposite case vice-versa.	>>> strl="tAmilL NaDu" >>>print(strl.swapcase( )) TaMIl nAdU