As we continue to pillage and collect more items we are finding it much harder to sort them based different attributes. In order to aid in speeding up the process we have decided to talk to our typical fence for stolen items, Gweedar. He mentions that he knows of an additional system that we can implement that will make sorting our items much easier and more efficient for us, but requires some additional set-up that we must define. I don’t have the time to get this new system up and running, but I’ve written instructions for you to follow in order to implement this system while I am attending to other matters.The item class must now implement the Comparable interface and override the compareTo() method. In the item class, you MUST use the value as your item to compare by.You must now implement a second sort method that sorts based on your compareTo() methods. This can be done using Arrays.sort() or Collections.sort().We must save and load to a file, at some point, throughout our program.All inputs from the user must be verified for accuracy by catching exceptions for invalid inputs.Items have attributes such as Name, Weight, Value, Durability and ID. (Create an object called ‘Item’).We now classify our items by separating them into 3 distinct categories Equipment, Consumable or Material. (You must implement these 3 classes that are subclasses of Item and they must have at least 3 unique attributes in each subclass)We can carry up to 10 items, as long as they don’t exceed the maximum weight of the cargo bay, 25 Tons.We need to be able to add and remove items by their name.We need to be able to search for a specific type of item in our cargo bay based on the item’s name and one of its attributes (Implement 2 searches – one on the name and another on any attribute you choose).We need to be able to sort items by their names alphabetically in orderWe need to know how many of each item we have in our cargo bay and display their attributes.

The instructions ask to implement a new system for sorting items based on attributes, with the help…

Answered: Gweedar. He mentions that he knows of…

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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As we continue to pillage and collect more items we are finding it much harder to sort them based different attributes. In order to aid in speeding up the process we have decided to talk to our typical fence for stolen items, Gweedar. He mentions that he knows of an additional system that we can implement that will make sorting our items much easier and more efficient for us, but requires some additional set-up that we must define. I don’t have the time to get this new system up and running, but I’ve written instructions for you to follow in order to implement this system while I am attending to other matters.

The item class must now implement the Comparable interface and override the compareTo() method. In the item class, you MUST use the value as your item to compare by.
You must now implement a second sort method that sorts based on your compareTo() methods. This can be done using Arrays.sort() or Collections.sort().
We must save and load to a file, at some point, throughout our program.
All inputs from the user must be verified for accuracy by catching exceptions for invalid inputs.
Items have attributes such as Name, Weight, Value, Durability and ID. (Create an object called ‘Item’).
We now classify our items by separating them into 3 distinct categories Equipment, Consumable or Material. (You must implement these 3 classes that are subclasses of Item and they must have at least 3 unique attributes in each subclass)
We can carry up to 10 items, as long as they don’t exceed the maximum weight of the cargo bay, 25 Tons.
We need to be able to add and remove items by their name.
We need to be able to search for a specific type of item in our cargo bay based on the item’s name and one of its attributes (Implement 2 searches – one on the name and another on any attribute you choose).
We need to be able to sort items by their names alphabetically in order
We need to know how many of each item we have in our cargo bay and display their attributes.

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