Python program to print even numbers from array (list)

In this tutorial, we will learn writing python program to create an array (list in case of python) and print the all even numbers stored in the array (list).

Problem Statement

Our Problem statement is like, We have to write an program that will first take the input of array (list) size and then the elements of the array (list). And then prints all the even numbers from the elements from the array (list).

For example:

Our logic to print even numbers from array (list)

• Our program will take input to fix the size of the array (list).
• Then our program will run for a ‘for loop’ to take the inputs from the user. The inputs will be the elements (or the content) of the array (list).
• Then, for each element of the array (list), our program will use ‘if-else’ conditional statement to check if the element is even.
• We will check element is even or not by calculating n%2, If this will return true it mean element is even number.
• Print the even numbers from the array (list).

Python code to print even numbers from array (list)

#taking the input from the user to fix the array size
size=int(input("Enter the number of elements you want in array: "))
arr=[]
sum=0
# adding elements to the array (list)
for i in range(0,size):
    elem=int(input("Please give value for index "+str(i)+": "))
    arr.append(elem)
print("All even number in array are ")
# check and print if any element of array (list) is even
for i in range(0,size):
    if arr[i]%2==0:
        print(arr[i],end=' ')

Output:

Enter the number of elements you want in array: 5
Please give value for index 0: 23
Please give value for index 1: 11
Please give value for index 2: 22
Please give value for index 3: 44
Please give value for index 4: 65
All even number in array are 
22 44 

Explanation:

For the input array [23, 11, 22, 44, 65], while iterating the elements of the array (list). For elements 22 and 44, the if-condition is satisfied and then the numbers 22 and 44 are printed as the output of the program.