Assignment 5-A

Collections Mastery

Master Java Collections Framework through comprehensive exercises. Work with Lists, Sets, Maps, Generics, and the Streams API to solve complex data manipulation problems.

5-6 hours
Challenging
150 Points
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What You'll Practice
  • Use List, Set, and Map interfaces
  • Apply generics for type safety
  • Implement streams for data processing
  • Master Collections class utilities
  • Create custom Comparable/Comparator
Contents
01

Assignment Overview

Build a comprehensive Library Management System that utilizes the full power of Java Collections. You'll work with different collection types to manage books, members, and borrowing records.

Skills Applied: Collections Framework (5.1), Generics (5.2), and Streams API (5.3) from Module 5.
Lists & Sets

ArrayList, LinkedList, HashSet, TreeSet

Maps

HashMap, TreeMap, LinkedHashMap

Streams

Filter, map, reduce, collect operations

02

Requirements

Part 1: Book Management with Lists (35 points)

  • Create a Book class implementing Comparable<Book>
  • Use ArrayList<Book> to store library books
  • Implement sorting by title, author, and publication year
  • Create custom Comparator implementations

Part 2: Member Management with Maps (35 points)

  • Create a Member class with unique member ID
  • Use HashMap<String, Member> for member lookup by ID
  • Use TreeMap to maintain sorted member list by name
  • Track borrowed books per member using Map<Member, List<Book>>

Part 3: Unique Categories with Sets (30 points)

  • Use HashSet to track unique book categories
  • Use TreeSet to maintain sorted genre list
  • Implement set operations: union, intersection, difference of book collections

Part 4: Stream Operations (50 points)

  • Filter books by category, year, or availability
  • Map operations to transform book data
  • Calculate statistics: total books, average rating, most borrowed
  • Group books by category using Collectors.groupingBy()
  • Find top 10 most borrowed books using streams
03

Submission Guidelines

Folder Structure: Submit all files in a folder named assignment5_yourname
Required Files:
  1. Book.java - Book model with Comparable
  2. Member.java - Member model
  3. BookComparators.java - Custom comparators
  4. LibraryManager.java - Main logic with collections
  5. StreamOperations.java - Stream-based queries
  6. Main.java - Demo program
  7. README.txt
Ready to submit? Make sure all stream operations are working correctly!
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04

Grading Rubric

Criteria Points Description
Book Management (Lists) 35 Proper List usage with Comparable/Comparator
Member Management (Maps) 35 Correct Map implementations and lookups
Category Tracking (Sets) 30 Set operations and uniqueness handling
Stream Operations 50 All stream queries working correctly
Total 150
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