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I have to write a Functional Specification for a Java File Dump Utility.
I am unfamiliar with both of these terms, this project is due next week and Im just trying toget an idea of what I'm doing.

I would love input from anyone who has created a Functional Specification and/or a Java File Dump Utility. Im NOT asking for someone to do my assignment just looking for some input.
Also, What is a file dump utility and what practical application does it have?
Thanks

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— a functional specification (FS) describes what the system must do, who uses it, and how its behavior will be judged. It is not a design or implementation guide. Think of it as a contract between you (developer) and the stakeholders: clear, testable requirements, plus acceptance criteria.

A short FS outline you can paste into your assignment:

  • Purpose and scope: one paragraph that says what the File Dump Utility is for and what it will not do.
  • Actors and use cases: who runs it (user, script) and main flows (single file dump, recursive directory dump, search-in-file).
  • Functional requirements (numbered): input sources, output formats (hex, ASCII, combined), flags (offset, length, recursive, encoding), metadata display, logging, error codes.
  • Non-functional requirements: performance (stream large files), memory limits, max file size supported, start-up time, OS portability, concurrency behavior.
  • External interfaces: command-line syntax, stdout/stderr conventions, config file format if any.
  • Error handling and security: permission errors, locked files, handling unreadable bytes, sanitize outputs.
  • Acceptance tests: concrete test cases with inputs and expected outputs.
  • Traceability/assumptions: map requirements to tests and note assumptions (e.g., UTF-8 text only if flagged).

Practical features to call out for a Java implementation: stream or memory-mapped reading for large files, use of NIO for performance, explicit encoding option (do not rely on auto-detection), clear exit codes, and a verbose/log mode. Include test cases like: "Dump first 128 bytes of a binary file in hex+ASCII" and "Recursively list and dump only .log files, skipping unreadable files and reporting counts."

Troubleshooting notes: if you hit OOM, switch to streaming or FileChannel transfer; if output mixes up on Windows vs Unix, check newline handling and encoding flags; if tests fail intermittently, add deterministic file fixtures and permission checks. — pointing OP to Google was unhelpful; concrete pointers like these will get the assignment done.

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Member Avatar for verruckt24

Have you heard about Google ? Cause it certainly must have heard about both the terms, I am sure.

Member Avatar for geek_till_itMHZ

Have you heard about Google ? Cause it certainly must have heard about both the terms, I am sure.

..
Yes I have and I've looked both terms up...just hoping to get some additional input

Member Avatar for verruckt24

What does your info say ?

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