Python Practice Questions Tutorial

Python Program to Calculate Sum of Integers in String

❮ Previous Next ❯

A Python program that extracts integers from a string and calculates their sum using a loop.

Here's a explanation of code in points:

def sum_integers(text):
➤ Defines a function to calculate the sum of integers in a string.

total = 0
➤ Variable to store the final sum.

num = ""
➤ Temporary string to collect digits forming a number.

for ch in text:
➤ Loops through each character of the input string.

if ch.isdigit():
➤ If the character is a digit, it is added to num.

else:
➤ If the character is not a digit:

Check if num is not empty.
Convert num to integer and add it to total.
Reset num to an empty string.

if num != "":
➤ After the loop ends, check if any number is still in num and add it to total.

return total
➤ Returns the calculated sum of integers.

Input and Output:
➤ Takes input from the user, calls the function, and prints the result.

Program:

def sum_integers(text):

    total = 0

    num = ""

    for ch in text:

        if ch.isdigit():

            num += ch

        else:

            if num != "":

                total += int(num)

                num = ""

       if num != "":

        total += int(num)

    return total

string = input("Enter a string: ")

result = sum_integers(string)

print("Sum of integers in string:", result)

❮ Previous Next ❯

Python Practice Questions Tutorial

Python Practice Questions Tutorial

Python Coding Questions on Numbers

Python Coding Questions on String

Python Coding Questions On List

Python Coding Questions On Dictionary

Python Coding Questions On Star Pattern

Python Program to Calculate Sum of Integers in String

Important Links