Python program to check whether a number is integer or not using for loop

In this article, you will learn how to check whether a number is an integer or not using the for loop and while loop in the python programming language.

Examples

You should have knowledge of the following topics to understand these programs:

• Python input() function
• Python str() function
• Python for loop statement
• Python while loop statement
• Python if-else condition statement
• Python break keyword
• Python print() function

1. Python program to check whether a number is an integer or not using for loop

# Python program to check whether a number is an integer or not using for loop

print ("Enter a number event float or integer type: ", end="")
random_number, flag = str (input ()), False

for i in random_number:
    if i == '.':
        flag = True
        break

if flag:
    print (random_number, " is a floating-point number.")
else:
    print (random_number, " is an integer number.")

Run Program

Output

2. Python program to check whether a number is an integer or not using while loop

# Python program to check whether a number is an integer or not using while loop

print ("Enter a number event float or integer type: ", end="")
random_number, flag = str (input ()), False
l, i = len (random_number), 0

while i < l:
    if random_number[i] == '.':
        flag = True
        break
    i += 1

if flag:
    print (random_number, " is a floating-point number.")
else:
    print (random_number, " is an integer number.")

Run Program

Output

Explanation

In this program, we have taken input 15.3 from the user and parsed this input as a string.

Meanwhile using for loop or while loop on this string we find the . symbol to verify It's an integer or floating-point number.