In this String Validators HackerRank solution, Python has built-in string validation methods for basic data. It can check if a string is composed of alphabetical characters, alphanumeric characters, digits, etc.
str.isalnum()
This method checks if all the characters of a string are alphanumeric (a-z, A-Z and 0-9).
>>> print 'ab123'.isalnum()
True
>>> print 'ab123#'.isalnum()
False
str.isalpha()
This method checks if all the characters of a string are alphabetical (a-z and A-Z).
>>> print 'abcD'.isalpha()
True
>>> print 'abcd1'.isalpha()
False
str.isdigit()
This method checks if all the characters of a string are digits (0-9).
>>> print '1234'.isdigit()
True
>>> print '123edsd'.isdigit()
False
str.islower()
This method checks if all the characters of a string are lowercase characters (a-z).
>>> print 'abcd123#'.islower()
True
>>> print 'Abcd123#'.islower()
False
str.isupper()
This method checks if all the characters of a string are uppercase characters (A-Z).
>>> print 'ABCD123#'.isupper()
True
>>> print 'Abcd123#'.isupper()
False
Task
You are given a string .
Your task is to find out if the string contains: alphanumeric characters, alphabetical characters, digits, lowercase and uppercase characters.
Input Format
A single line containing a string .
Constraints
Output Format
In the first line, print True
if has any alphanumeric characters. Otherwise, print False
.
In the second line, print True
if has any alphabetical characters. Otherwise, print False
.
In the third line, print True
if has any digits. Otherwise, print False
.
In the fourth line, print True
if has any lowercase characters. Otherwise, print False
.
In the fifth line, print True
if has any uppercase characters. Otherwise, print False
.
Sample Input
qA2
Sample Output
True
True
True
True
True
String Validators HackerRank solution
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Problem Solution in Python
if __name__ == '__main__':
s = input()
properties = {
'alnum': False, 'al': False, 'dig': False, 'low': False, 'upp': False
}
for i in s:
if i.isalnum():
properties["alnum"] = True
if i.isalpha():
properties["al"] = True
if i.isdigit():
properties["dig"] = True
if i.islower():
properties["low"] = True
if i.isupper():
properties["upp"] = True
for i in properties:
print(properties[i])
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