Practice Question

Question 1

Write a python program to check whether the given string follow ABC language identifiers rules. Rules are given below:

• The allowed characters are a-z,A-Z,0-9,#
• The first character should be a lower case alphabet symbol from a to k
• The second character should be a digit divisible by 3
• The length of identifier should be atleast 2.

import re
s=input("Enter Identifier:")
m=re.fullmatch("[a-k][0369][a-zA-Z0-9#]*",s)
if m!= None:
  print(s,"is valid Yava Identifier")
else:
  print(s,"is invalid Yava Identifier")

Output

Enter Identifier:a6kk9z##
a6kk9z## is valid Yava Identifier

Enter Identifier:z9b876
z9b876 is invalid Yava Identifier

Question 2

Write a python program to check whether the given number is valid mobile number or not?

import re
n=input("Enter number:")
m=re.fullmatch("[7-9]\d{9}",n)
if m!= None:
  print("Valid Mobile Number")
else:
  print("Invalid Mobile Number")

Output

Enter number:9686968689
Valid Mobile Number

Enter number:6786786787
Invalid Mobile Number

Ungraded Questions

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