Program for Python String isdigit() Method

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In the previous article, we have discussed Python Program for isdecimal() Function
isdigit() Function in Python:

If all of the characters are digits, the isdigit() method returns true; otherwise, it returns False.

Exponents, such as ², are also considered digits.

Syntax:

string.isdigit()

Parameters: This function has no parameters.

Examples:

Example1:

Input:

Given first string = "\u0039"
Given second string = "\u00B2"

Output:

The above given first string is : 9
The given first string after applying isdigit() function: True
The above given second string is : ²
The given second string after applying isdigit() function: True

Example2:

Input:

Given first string = "345.67"
Given second string = "python_12345"

Output:

The above given first string is : 345.67
The given first string after applying isdigit() function: False
The above given second string is : python_12345
The given second string after applying isdigit() function: False

Program for isdigit() Function in Python

Method #1: Using Built-in Functions (Static Input)

Approach:

  • Give the first string as static input and store it in a variable.
  • Apply isdigit() function to the given first string that returns a value true if all of the characters are digits, otherwise, it returns False.
  • Store it in another variable.
  • Print the above-given String.
  • Print the above-given string after applying isdigit() function.
  • Similarly, do the same for the other string and print the result string.
  • The Exit of Program.

Below is the implementation:

# Give the first string as static input and store it in a variable.
gvn_fststr = "\u0039"
# Apply isdigit() function to the given first string that returns a value
# true if all of the characters are digits, otherwise, it returns False.
# Store it in another variable.
rslt_str1 = gvn_fststr.isdigit()
# Print the given String
print("The above given first string is :", gvn_fststr)
# Print the above given String after applying isdigit() function.
print("The given first string after applying isdigit() function:", rslt_str1)
# Similarly do the same for other string and print the result string.
gvn_scndstr = "\u00B2"
rslt_str2 = gvn_scndstr.isdigit()
print("The above given second string is :", gvn_scndstr)
print("The given second string after applying isdigit() function:", rslt_str2)

Output:

The above given first string is : 9
The given first string after applying isdigit() function: True
The above given second string is : ²
The given second string after applying isdigit() function: True

Method #2: Using Built-in Functions (User Input)

Approach:

  • Give the first string as user input using the input() function and store it in a variable.
  • Apply isdigit() function to the given first string that returns a value true if all of the characters are digits, otherwise, it returns False.
  • Store it in another variable.
  • Print the above-given String.
  • Print the above-given string after applying isdigit() function.
  • Similarly, do the same for the other string and print the result string.
  • The Exit of Program.

Below is the implementation:

# Give the first string as user input using the input() function and store it in a variable.
gvn_fststr = input("Enter some Random String = ")
# Apply isdigit() function to the given first string that returns a value
# true if all of the characters are digits, otherwise, it returns False.
# Store it in another variable.
rslt_str1 = gvn_fststr.isdigit()
# Print the given String
print("The above given first string is :", gvn_fststr)
# Print the above given String after applying isdigit() function.
print("The given first string after applying isdigit() function:", rslt_str1)
# Similarly do the same for other string and print the result string.
gvn_scndstr = input("Enter some Random String = ")
rslt_str2 = gvn_scndstr.isdigit()
print("The above given second string is :", gvn_scndstr)
print("The given second string after applying isdigit() function:", rslt_str2)

Output:

Enter some Random String = 345.67
The above given first string is : 345.67
The given first string after applying isdigit() function: False
Enter some Random String = python_12345
The above given second string is : python_12345
The given second string after applying isdigit() function: False

Are you facing difficulties in finding all the methods that a string object can call in python? Have a glance at this Python String Method Examples Tutorial & meet such challenges with ease.