Description

I added multiple string manipulation snippets for java including:

1. case conversion (7)

• string to Titlecase
• string to snake_case
• string to PascalCase
• string to param-case
• string to camelCase
• camcelCase <-> snake_case

2. other conversions (6)

• space <-> tabs
• string <-> unicode
• string <-> ascii list

3. string normalisation (5)

• slugify string
• capatalize words
• remove punctuation
• remove special characters
• normalize whitespaces (consecutive whitespaces to single space)

4. other text transformations (5)

• truncate string
• mask text
• extract text between to delimiters
• reverse word contents
• reverse word order

5. string analyzing (8)

• count character frequency in string
• count consonants
• count vowels
• count words
• find unique characters
• find longest word
• is palindrome
• is anagram

6. other (1)

• password generator

Type of Change

• ✨ New snippet
• 🛠 Improvement to an existing snippet
• 🐞 Bug fix
• 📖 Documentation update
• 🔧 Other (please describe):

Checklist

• I have tested my code and verified it works as expected.
• My code follows the style and contribution guidelines of this project.
• Comments are added where necessary for clarity.
• Documentation has been updated (if applicable).
• There are no new warnings or errors from my changes.

Related Issues

Closes #

Additional Context

Screenshots (Optional)