Python — Strings

Question 1 Strings Frequency

Find Repeated Characters in a Sentence

Write a program to input string sentence and print only print words which contains repeated characters.like goods,egg,happy,etc

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Repeated Characters in Sentence Solution

Question 2 Strings Validation

Check if String Contains Only Consonants

Write a Python program to verify whether a given string consists entirely of consonants (alphabetic characters with no vowels).

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Question 3 Strings Pangram

Check for Consecutive Repeated Characters in a String

Write a Python program to read a string from standard input and determine whether it contains any consecutive identical characters (e.g., "oo" in "good"). Use a loop to compare adjacent indices and display an appropriate message indicating whether consecutive duplicate characters exist.

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Question 4 Strings Duplicate Check

Check Whether a String is a Pangram

Write a Python program to accept a string from standard input and determine whether it is a pangram. A pangram is a sentence or phrase that contains every letter of the English alphabet from a to z at least once, irrespective of letter case, digits, punctuation, or spaces.

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Repeated Character Contains Or Not Solution

Question 5 Strings Comparison

Compare Two Strings Using Relational Operators

Python program to compare them lexicographically using relational operators (==, !=, <, >, <=, >=).

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Question 6 Strings Concatenation

Reverse a String Using Concatenation and Check for Palindrome

Write a Python program to take a string from the user, reverse it using loop-based string concatenation (rev = a + rev) without using slicing ([::-1]), and check whether the original string is a Palindrome.

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Question 7 Strings Case & Frequency

Convert to Uppercase and Count Character Frequency

Write a Python program to convert a string into uppercase and calculate the frequency of each unique letter.

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Convert Uppercase and Count Frequency Solution

Question 8 Strings Character Analysis

Count Alphabets, Digits, Uppercase, Lowercase, and Spaces

Write a Python program to read a string and count the total number of uppercase letters, lowercase letters, numerical digits, and whitespace characters.

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Question 9 Strings Vowels

Count Total Vowels in a String

Write a Python program that takes a string input and determines the total count of vowels (a, e, i, o, u, both uppercase and lowercase).

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Question 10 Strings Vowel Breakdown

Count Each Vowel Individually

Write a Python program to count occurrences of each individual vowel ('a', 'e', 'i', 'o', 'u') separately in a given user string.

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Question 11 Strings Indexing

Separate Characters at Even and Odd Index Positions

Write a Python program to split a string into two separate parts: one containing characters at even index positions and the other at odd index positions.

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Question 12 Strings Intersection

Find Common Characters in Two Strings

Write a Python program to input two different strings and print all characters that appear in both strings without duplicate entries.

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Common Character in Two Strings Solution

Question 13 Strings Word Count

Find the Frequency of Each Word in a Sentence

Write a Python program to accept a sentence and count how many times each distinct word appears in the text.

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Question 14 Strings Basics

First String Program: Input and Display

Write a Python program to demonstrate direct element retrieval from a string using positive indexing (from the start) and negative indexing (from the end).

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Question 15 Strings Search

Find the First Vowel in a String and its Position

Write a Python program to search through a string, identify the very first vowel encountered, and display its character and index position.

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Question 16 Strings Built-in Methods

Count Character Types Using String Testing Methods

Write a Python program using isupper(), islower(), isdigit(), and isspace() methods to classify and count all characters in an input string.

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Question 17 Strings String Methods

Demonstration of Built-in Python String Functions

Write a Python program to demonstrate common string methods including upper(), lower(), title(), strip(), replace(), find(), etc.

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Solution Code Screenshot Click image to zoom

Question 18 Strings Sentence Processing

Find the Longest Word in a Sentence

Write a Python program that accepts a sentence and determines the longest word.

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Question 19 Strings Palindrome

Print All Palindrome Words in a Sentence

Write a Python program to parse a sentence and print only those words that read the same backwards as forward (palindromes like 'madam', 'racecar').

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Question 20 Strings Iteration

Extract and Print All Vowels from a String

Write a Python program to read an input string and display all vowels present in the string in order of their appearance.

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Question 21 Strings Formatting

Print Each Word of a Sentence on a New Line

Write a Python program to split a given sentence by whitespace and print each constituent word on its own individual line.

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Question 22 Strings Sanitization

Remove All Digits from a String

Write a Python program to take an alphanumeric string and remove all numeric digits, returning only letters and special symbols.

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Question 23 Strings Replication

String Replication Operator (*) Star Pattern

Write a Python program utilizing string repetition (* operator) to generate and display pyramid or triangle patterns of asterisks without inner nested loops.

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Solution Code Screenshot Click image to zoom

Question 24 Strings Slicing

Reverse a String Using Slicing [::-1]

Write a Python program to reverse any user-provided string using slice step syntax [::-1] and print the result.

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Question 25 Strings Paragraph Split

Split Paragraph into Sentences on New Lines

Write a Python program to take a multisentence paragraph, split sentences based on period delimiters, and print each sentence on a new line.

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Question 26 Strings Slicing

Comprehensive Demonstration of String Slicing

Write a Python program demonstrating start, stop, and step slice parameters (positive indexing, negative indexing, and stride steps) on a sample string.

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Question 27 Strings Masking & Slicing

Format and Extract Parts of a Phone Number via Slicing

Write a Python program to take a 10-digit phone number as a string, extract the country code, area code, and mask central digits using string slicing.

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Question 28 Strings Boundary Check

Check if String Starts and Ends with a Vowel

Write a Python program to check whether a given string simultaneously starts with a vowel and ends with a vowel.

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Question 29 Strings Traversal

Traverse a String Character by Character

Write a Python program to traverse a string using a for loop and while loop, printing each character alongside its forward and backward index.

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Question 30 Strings Word Counting

Count Total Words in a Sentence

Write a Python program to input a sentence and calculate the total number of words present without being affected by consecutive multiple spaces.

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