Java Programming | System Documentation

1. Group Assignment: Encoded Cipher GUI[cite: 1]

Objective: Design and implement a Java Swing application to generate a traceable encoded string using a embedded, unique group-specific shift key[cite: 1].

Technical Requirements

Class Structure: Create the class Encoded with `inputText`, `charCount`, `resultText`, and a hidden `groupID` (e.g., G08/NC-G18)[cite: 1].
Validation: Input must accept only alphanumeric (lowercase only) and spaces. Display error on invalid input[cite: 1].
Hashing Mechanism: Generate `groupShift` using groupID.hashCode()[cite: 1].
Shift Calculation: Final Shift = `groupShift` + (Number of non-space characters)[cite: 1].
Encoding: Shift lowercase letters and digits; spaces remain unchanged. The encoded traceable output must be generated from user input[cite: 1].
GUI Elements: Use Java Swing for Input Text Field, Encode Button, and Display Area for results (Count, Final Shift, and Encoded Result)[cite: 1].

class Encoded {
  inputText: String
  charCount: int
  resultText: String
  groupID: String (Internally defined, Hidden)
  + Encoded(inputText: String)
  + countCharacters(inputText: String): int
  + checkStringValidity(inputText: String): boolean
  + generateShift(): int
  + applyCipher(inputText: String, shift: int): String
}

Deadline: 24th May 2026, 11:59 PM[cite: 1].

2. Final Project: SDG Sustainable Learning App[cite: 2]

Theme: Sustainable Development Goals (SDGs) Desktop Application with educational content, quizzes, and gamification elements[cite: 2].

Application Architecture

Composition: Structured with minimum 4 classes and 4 non-GUI interfaces (one per member)[cite: 2].
Educational Module: Min 10 pages/screens of educational content, including text and images[cite: 2].
Quiz Module: Min 20 questions with multiple types (MCQ, True/False, etc.). Scoring message displayed (e.g., 80-100%: Outstanding!)[cite: 2].
Gamification: Implement badges, points, stars, timers, or leaderboards to enhance engagement[cite: 2].
Data Persistence: Store scores via Text file, Array, or simple database[cite: 2].
Execution: Command line execution requirement[cite: 2].

Milestone Schedule & Evaluation

Phase	Deliverable	Components	Deadline
Project Design	UML Diagrams & Documentation (PDF)[cite: 2]	Structure explanation, UML Diagrams, Cover Page, Discussion Screenshots[cite: 2]	5th June 2026, 5:00 PM[cite: 2]
Project Output	Java Code & Presentation Materials (ZIP)[cite: 2]	Source Files with creator/tester comments, Signature on Cover Document, Interactive Screenshots, QA/Testing Proof[cite: 2]	5th June 2026, 5:00 PM[cite: 2]
Individual Assessment	Presentation & Contribution Review[cite: 2]	Compulsory Presentation (Week 14), Contribution review (Member must code min one class and interface)[cite: 2]	Week 14 (8-12 June 2026)[cite: 2]