Top 25 Beginner-Friendly String & Text Processing Programs with Output

Strings & Text Processing Programs in C, C++, Java, and Python

Reverse a String
String Palindrome
Count Vowels & Consonants
Count Digits in String
String Length (Manual)
Remove Spaces
Remove Vowels
Remove Consonants
Toggle Case
Convert String to Uppercase/Lowercase
Title Case Conversion
Count Words in a Sentence
First Repeating Character
First Non-Repeating Character
Check Anagram
Count Character Frequency
Find Substring
Replace Characters
Remove Duplicates
Sort Characters
Longest Word in Sentence
Shortest Word
Reverse Words in Sentence
Count Special Characters
Remove Punctuation
Compress String (RLE)
String to Integer (without library)
Integer to String
Valid Parentheses
Minimum Insertions for Palindrome
Count Occurrences of Word
Find Most Frequent Word
String Rotation
Find All Substrings
Count Palindromic Substrings
Longest Palindromic Substring
Longest Common Prefix
Group Anagrams
Edit Distance
Z-Algorithm for Pattern Matching
KMP Algorithm
Rabin-Karp Algorithm
Boyer-Moore Algorithm
Reverse Only Alphabets
Mask Phone Number
Valid Email Pattern Check
Check Pangram
Find Missing Character