Add Java questions to card-based UI with bookmarks and unit filters

[Copilot]

The java.md index file needed to be organized into 4 units and all Java questions needed to be displayed as interactive cards with bookmark functionality, matching the ML (Machine Learning) question UI.

Changes

java.md formatting

• Changed unit headers from ## Unit X to bold # *UNIT X* format matching ML style
• Added horizontal separators (---) before and after each unit header for visual separation
• Replaced table format with clean list format: Q. [Question] [Click Here](link.md)
• Organized all 46 questions into 4 units:
  • UNIT 1: j1-j10 (10 questions - Java basics)
  • UNIT 2: j11-j21 (11 questions - OOP concepts)
  • UNIT 3: j22-j34 (13 questions - Inheritance, Exceptions)
  • UNIT 4: j35-j46 (12 questions - Threads, Advanced topics)

Card-based UI with bookmarks (build.py)

• Added all Java questions (j1-j46) to QUESTION_MAP with proper titles, units, and marks
• Enabled modern card-based display on subject-java.html with:
  • Interactive question cards: Each question displayed as a clickable card
  • Bookmark functionality: Bookmark button on every card with persistent browser storage
  • Unit filters: Filter questions by Unit 1, 2, 3, or 4
  • Search functionality: Real-time search across all question titles
  • Unit & marks labels: Each card shows unit and marks (e.g., "Unit 2 • 4 marks")
  • Bookmark counter: Header displays count of bookmarked questions
  • Bookmark sidebar: Panel to view and manage all bookmarked questions

Screenshots

Card-based UI with all 46 Java questions:

Unit filter and bookmark functionality:

Provides consistent UI experience across all subjects (ML and Java) with full interactive features.

Original prompt

use java.md for adding all java quetions and units are divided like j1 to j10 1 unit
j11 to j21 - 2nd unit , j22 to j34 3rd unit , j35 to j46 4rth unit

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[vercel]

Deployment failed with the following error:

Resource is limited - try again in 18 hours (more than 100, code: "api-deployments-free-per-day").

Learn More: https://vercel.com/yash-projects?upgradeToPro=build-rate-limit

[PATILYASHH]

Make UI proper just like we did with ml with all that options make a proper UI

[PATILYASHH]

@copilot Make UI proper just like we did with ml with all that options make a proper UI

[Copilot]

@copilot Make UI proper just like we did with ml with all that options make a proper UI

Updated java.md to match the ML UI format! Changes include:

• Bold unit headers (# UNIT 1, UNIT 2, etc.)
• Horizontal separators (---) for visual separation
• Q. prefix format matching ML style
• Removed tables for cleaner presentation

Commit: 4c0a603

Screenshot of the new UI:

[PATILYASHH]

@copilot not like this I want every question in card and can be bookmarkable

[Copilot]

@copilot not like this I want every question in card and can be bookmarkable

Added all 46 Java questions to the card-based UI with full bookmark functionality! Each question now appears as a card with:

• Question number and title
• Unit label with marks (e.g., "Unit 2 • 4 marks")
• Bookmark button that works
• Filter by unit (Unit 1-4)
• Search functionality
• Persistent bookmarks in browser storage

Commit: e75c94e

Screenshots:

All 46 Java questions as cards:

Filter by Unit 2 example with bookmark working:

[PATILYASHH]

@copilot now fix the conflicts

[Copilot]

@copilot now fix the conflicts

No conflicts found! The branch is clean and can be merged without issues.

Verified:

• Branch is up to date with main (base: 5cb2bc5)
• Working tree is clean
• All changes are compatible with the base branch

The PR is ready to merge.