**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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