Update README.md Add ThreadSafeHashing class for concurrent SHA-256 hashing in Java

[KinglyWayne]

@coderabbitai

Summary by CodeRabbit

• New Features

  • Introduced a new ThreadSafeHashing example in the README, demonstrating thread-safe hashing of input data using SHA-256.
  • Added a main method that showcases the processing of multiple strings in a concurrent environment.

• Documentation

  • Updated README.md to include the new Java code snippet and explanations for the ThreadSafeHashing class and its methods.

[sweep-ai-deprecated]

Hey @KinglyWayne, here is an example of how you can ask me to improve this pull request:

@Sweep Add unit tests for the `hashData` method to verify:
- The correct SHA-256 hash is generated for known input strings
- The method properly handles empty strings
- The hex string conversion is working correctly (especially the padding of single digits with leading zeros)

📖 For more information on how to use Sweep, please read our documentation.

[coderabbitai]

Walkthrough

The changes introduce a new Java class named ThreadSafeHashing in the README.md file. This class implements a thread-safe mechanism for hashing input strings using a ConcurrentHashMap. It includes a main method that creates a thread pool to process an array of strings, computes their SHA-256 hashes, stores them in the map, and prints the results. Additionally, a hashData method is defined to handle the hashing process, with appropriate exception handling for the SHA-256 algorithm.

Changes

File	Change Summary
README.md	- Added class ThreadSafeHashing - Added method public static void main(String[] args) - Added method private static String hashData(String data) throws NoSuchAlgorithmException

Sequence Diagram(s)

sequenceDiagram
    participant Main
    participant ExecutorService
    participant ConcurrentHashMap

    Main->>ExecutorService: Create thread pool
    Main->>ExecutorService: Submit tasks for data1 to data5
    ExecutorService->>ConcurrentHashMap: Store hash of data
    Main->>Main: Print data and hash
    ExecutorService->>ExecutorService: Shutdown after tasks

Loading

🐇 "In the code where threads do play,
Hashing strings in a safe way.
With pools of ten, they work in sync,
Storing hashes, quick as a wink!
A rabbit's cheer for code so bright,
Thread-safe magic, what a delight!" 🐇

---

📜 Recent review details

Configuration used: CodeRabbit UI
Review profile: CHILL

📥 Commits

Reviewing files that changed from the base of the PR and between f7122c9 and 94513cd.

📒 Files selected for processing (1)

• README.md (1 hunks)

✅ Files skipped from review due to trivial changes (1)

• README.md

---

Thank you for using CodeRabbit. We offer it for free to the OSS community and would appreciate your support in helping us grow. If you find it useful, would you consider giving us a shout-out on your favorite social media?

❤️ Share

• X
• Mastodon
• Reddit
• LinkedIn

🪧 Tips

Chat

There are 3 ways to chat with CodeRabbit:

• Review comments: Directly reply to a review comment made by CodeRabbit. Example:
  • I pushed a fix in commit <commit_id>, please review it.
  • Generate unit testing code for this file.
  • Open a follow-up GitHub issue for this discussion.
• Files and specific lines of code (under the "Files changed" tab): Tag @coderabbitai in a new review comment at the desired location with your query. Examples:
  • @coderabbitai generate unit testing code for this file.
  • @coderabbitai modularize this function.
• PR comments: Tag @coderabbitai in a new PR comment to ask questions about the PR branch. For the best results, please provide a very specific query, as very limited context is provided in this mode. Examples:
  • @coderabbitai gather interesting stats about this repository and render them as a table. Additionally, render a pie chart showing the language distribution in the codebase.
  • @coderabbitai read src/utils.ts and generate unit testing code.
  • @coderabbitai read the files in the src/scheduler package and generate a class diagram using mermaid and a README in the markdown format.
  • @coderabbitai help me debug CodeRabbit configuration file.

Note: Be mindful of the bot's finite context window. It's strongly recommended to break down tasks such as reading entire modules into smaller chunks. For a focused discussion, use review comments to chat about specific files and their changes, instead of using the PR comments.

CodeRabbit Commands (Invoked using PR comments)

• @coderabbitai pause to pause the reviews on a PR.
• @coderabbitai resume to resume the paused reviews.
• @coderabbitai review to trigger an incremental review. This is useful when automatic reviews are disabled for the repository.
• @coderabbitai full review to do a full review from scratch and review all the files again.
• @coderabbitai summary to regenerate the summary of the PR.
• @coderabbitai resolve resolve all the CodeRabbit review comments.
• @coderabbitai configuration to show the current CodeRabbit configuration for the repository.
• @coderabbitai help to get help.

Other keywords and placeholders

• Add @coderabbitai ignore anywhere in the PR description to prevent this PR from being reviewed.
• Add @coderabbitai summary to generate the high-level summary at a specific location in the PR description.
• Add @coderabbitai anywhere in the PR title to generate the title automatically.

CodeRabbit Configuration File (.coderabbit.yaml)

• You can programmatically configure CodeRabbit by adding a .coderabbit.yaml file to the root of your repository.
• Please see the configuration documentation for more information.
• If your editor has YAML language server enabled, you can add the path at the top of this file to enable auto-completion and validation: # yaml-language-server: $schema=https://coderabbit.ai/integrations/schema.v2.json

Documentation and Community

• Visit our Documentation for detailed information on how to use CodeRabbit.
• Join our Discord Community to get help, request features, and share feedback.
• Follow us on X/Twitter for updates and announcements.