python class 12 computer science

Question

note - without using inbuilt functions

Which string method is used to implement the following:
a) To count the number of characters in the string.
b) To change the first character of the string in capital letter.
c) To check whether given character is letter or a number.
d) To change lower case to upper case letter.
e) Change one character into another character

Answer 1

1. len(str) 

2. str.capitalize()

3. ch.isalnum() 

4. str.upper() 

5. str.replace(old,new)