Strings in Python:
“String is a character collection or array”
Well in Python too, for the string data type, we say the same definition. The string is a sequenced character array and is written within single, double, or three quotes. Also, Python does not have the data type character, thus it is used as a string of length 1 if we write ‘r’.
Given a string, the task is to calculate the total number of digits and letters present in the given string in Python.
Examples:
Example1:
Input:
given string =Hel34lo18th3is9is38 BTech23Geeks
Output:
The total number of digits present in the given string [ Hel34lo18th3is9is38 BTech23Geeks ] = 10 The total number of characters present in the given string [ Hel34lo18th3is9is38 BTech23Geeks ] = 32
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Example2:
Input:
given string =btechgeeks2online82platform92for1000geeks
Output:
Enter some random string = btechgeeks2online82platform92for1000geeks The total number of digits present in the given string [ btechgeeks2online82platform92for1000geeks ] = 9 The total number of characters present in the given string [ btechgeeks2online82platform92for1000geeks ] = 41
Program to Calculate the Number of Digits and Letters in a String
There are several ways to calculate the total number of digits and letters in the given string some of them are:
- Using isdigit() function and Count Variable(Static Input)
- Using isdigit() function and Count Variable(User Input)
- Using isdigit() and len() functions(Static Input)
- Using isdigit() and len() functions(User Input)
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Method #1:Using isdigit() function and Count Variable(Static Input)
Approach:
- Give the string as static input and store it in a variable.
- Take a variable to say stringdigits that stores the total digits in the given string.
- Initialize the stringdigits to 0.
- Take a variable to say stringcharacters that stores the total characters in the given string.
- Initialize the stringcharacters to 0.
- Traverse the given string using for loop.
- Check if the character is a numerical digit or not using the isdigit() function.
- If the character is a numerical digit then increment the value of stringdigits by 1.
- Increase the stringcharacters by 1.
- Print the total count of digits and characters present in the given string.
- The Exit of the Program
Below is the implementation:
# Give the string as static input and save it in a variable.
given_strng = 'Hel34lo18th3is9is38 BTech23Geeks'
# Take a variable to say stringdigits that stores the total digits in the given string.
# Initialize the stringdigits to 0.
stringdigits = 0
# Take a variable to say stringcharacters that stores the total characters in the given string.
# Initialize the stringcharacters to 0.
stringcharacters = 0
# Traverse the given string using for loop.
for charact in given_strng:
# Check if the character is a numerical digit or not using the isdigit() function.
if(charact.isdigit()):
# If the character is a numerical digit then increment the value of stringdigits by 1.
stringdigits = stringdigits+1
# Increase the stringcharacters by 1.
stringcharacters = stringcharacters+1
# Print the total count of digits and characters present in the given string.
print(
'The total number of digits present in the given string [', given_strng, '] = ', stringdigits)
print(
'The total number of characters present in the given string [', given_strng, '] = ', stringcharacters)
Output:
The total number of digits present in the given string [ Hel34lo18th3is9is38 BTech23Geeks ] = 10 The total number of characters present in the given string [ Hel34lo18th3is9is38 BTech23Geeks ] = 32
Method #2:Using isdigit() function and Count Variable(User Input)
Approach:
- Give the string as user input using the input() function and store it in a variable.
- Take a variable to say stringdigits that stores the total digits in the given string.
- Initialize the stringdigits to 0.
- Take a variable to say stringcharacters that stores the total characters in the given string.
- Initialize the stringcharacters to 0.
- Traverse the given string using for loop.
- Check if the character is a numerical digit or not using the isdigit() function.
- If the character is a numerical digit then increment the value of stringdigits by 1.
- Increase the stringcharacters by 1.
- Print the total count of digits and characters present in the given string.
- The Exit of the Program
Below is the implementation:
# Give the string as user input using the input() function and store it in a variable.
given_strng = input('Enter some random string = ')
# Take a variable to say stringdigits that stores the total digits in the given string.
# Initialize the stringdigits to 0.
stringdigits = 0
# Take a variable to say stringcharacters that stores the total characters in the given string.
# Initialize the stringcharacters to 0.
stringcharacters = 0
# Traverse the given string using for loop.
for charact in given_strng:
# Check if the character is a numerical digit or not using the isdigit() function.
if(charact.isdigit()):
# If the character is a numerical digit then increment the value of stringdigits by 1.
stringdigits = stringdigits+1
# Increase the stringcharacters by 1.
stringcharacters = stringcharacters+1
# Print the total count of digits and characters present in the given string.
print(
'The total number of digits present in the given string [', given_strng, '] = ', stringdigits)
print(
'The total number of characters present in the given string [', given_strng, '] = ', stringcharacters)
Output:
Enter some random string = btechgeeks2online82platform92for1000geeks The total number of digits present in the given string [ btechgeeks2online82platform92for1000geeks ] = 9 The total number of characters present in the given string [ btechgeeks2online82platform92for1000geeks ] = 41
Explanation:
- A string must be entered by the user and saved in a variable.
- The count variables are both set to zero.
- The for loop is used to go over the characters in a string.
- When a digit is encountered, the first count variable is incremented, and when a character is encountered, the second count variable is incremented.
- The total number of digits and characters in the string is printed.
Method #3:Using isdigit() and len() functions(Static Input)
Approach:
- Give the string as static input and store it in a variable.
- Take a variable to say stringdigits that stores the total digits in the given string.
- Initialize the stringdigits to 0.
- Traverse the given string using for loop.
- Check if the character is a numerical digit or not using the isdigit() function.
- If the character is a numerical digit then increment the value of stringdigits by 1.
- Calculate the length of the given string using the len() function.
- The length of a given string gives the total number of characters present in the given string.
- Print the total count of digits and characters present in the given string.
- The Exit of the Program
Below is the implementation:
# Give the string as static input and save it in a variable.
given_strng = 'Hel34lo18th3is9is38 BTech23Geeks'
# Take a variable to say stringdigits that stores the total digits in the given string.
# Initialize the stringdigits to 0.
stringdigits = 0
# Traverse the given string using for loop.
for charact in given_strng:
# Check if the character is a numerical digit or not using the isdigit() function.
if(charact.isdigit()):
# If the character is a numerical digit then increment the value of stringdigits by 1.
stringdigits = stringdigits+1
# Calculate the length of the given string using the len() function.
# The length of a given string gives the total
# number of characters present in the given string.
strngLength = len(given_strng)
# Print the total count of digits and characters present in the given string.
print(
'The total number of digits present in the given string [', given_strng, '] = ', stringdigits)
print(
'The total number of characters present in the given string [', given_strng, '] = ', strngLength)
Output:
The total number of digits present in the given string [ Hel34lo18th3is9is38 BTech23Geeks ] = 10 The total number of characters present in the given string [ Hel34lo18th3is9is38 BTech23Geeks ] = 32
Method #4:Using isdigit() and len() functions(User Input)
Approach:
- Give the string as user input using the input() function and store it in a variable.
- Take a variable to say stringdigits that stores the total digits in the given string.
- Initialize the stringdigits to 0.
- Traverse the given string using for loop.
- Check if the character is a numerical digit or not using the isdigit() function.
- If the character is a numerical digit then increment the value of stringdigits by 1.
- Calculate the length of the given string using the len() function.
- The length of a given string gives the total number of characters present in the given string.
- Print the total count of digits and characters present in the given string.
- The Exit of the Program
Below is the implementation:
# Give the string as user input using the input() function and store it in a variable.
given_strng = input('Enter some random string = ')
# Take a variable to say stringdigits that stores the total digits in the given string.
# Initialize the stringdigits to 0.
stringdigits = 0
# Traverse the given string using for loop.
for charact in given_strng:
# Check if the character is a numerical digit or not using the isdigit() function.
if(charact.isdigit()):
# If the character is a numerical digit then increment the value of stringdigits by 1.
stringdigits = stringdigits+1
# Calculate the length of the given string using the len() function.
# The length of a given string gives the total
# number of characters present in the given string.
strngLength = len(given_strng)
# Print the total count of digits and characters present in the given string.
print(
'The total number of digits present in the given string [', given_strng, '] = ', stringdigits)
print(
'The total number of characters present in the given string [', given_strng, '] = ', strngLength)
Output:
Enter some random string = btechgeeks278onlineplatform2391forgeeks The total number of digits present in the given string [ btechgeeks278onlineplatform2391forgeeks ] = 7 The total number of characters present in the given string [ btechgeeks278onlineplatform2391forgeeks ] = 39
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