Python Program to find sum of array elements using for

Program

number_array = list()
total = 0
size = int(input("Enter the size of array:\t"))
print("Enter the numbers in array: ")
for i in range(int(size)):
    n = input()
    number_array.append(int(n))
for element in number_array:
    total = total+element
print("Sum of array is:\t", total)

This program calculates the sum of all elements in an array using a for loop.

1. User Input for Array Size

   • The user enters the number of elements they want in the array.

2. Array Input

   • A loop runs size times, taking user input and storing it in number_array.

3. Summation Using for Loop

   • The for loop iterates over each element in number_array, adding its value to total.

4. Display the Sum

   • The final sum of all array elements is printed.

Key Takeaways

• Uses loops to take input and process the array.
• Uses a for loop to iterate over array elements for summation.
• Stores the sum in the total variable and prints the result.

Output

$ python3 sum_of_array_elements_using_for.py
Enter the size of array:        4
Enter the numbers in array:
45
67
89
37
Sum of array is:         238