Online Book Reader System

Introduction

This question comes from the book named "Cracking Code Interview", Chapter 7; It is very easy problem with thinking about the insert/remove/update/retrieve action.

Functionality

• User Membership Creation and Extension
• Search the book in memory
• Reading the book

Analysis

Objects

• Book:

  • ID
  • Title
  • Author
  • Content
  • Method
    • showContent

• Books: (In-memory storage for many book objects)

  • Set
  • Method
    • find
    • add
    • delete
    • update

• User

  • ID
  • Name
  • accoutnType
  • Method
    • findBook
    • read (book.showContent)

• Users

  • Set
  • Method
    • find
    • add
    • delete
    • update