Pls read the attached description file.
In this exercise you will use multiple generics to develop a StorageBin class. The StorageBin class will
store a generic item and a generic unique identifier for that item. For example, the StorageBin may store
hardware tools and a unique ID for each tool.
You are provided with the following starter code files: StorageBinTester.java, StorageBin.java, Tool.java
Create or complete the following classes:
The StorageBin.java class should have the following methods and functionality:
• Two generic ArrayLists to store generic items
• A constructor to set up the ArrayLists
• sizeofBin():int method which returns the number of items stored
• addItem(T item, U id):void method which adds an item and its unique ID to the arrays.
o This method prints an error if an item is added with an already existing ID
• removeItem(U id): T method remove the item with the given ID from the bin and returns it to the
caller.
• displayItems(): void method prints the contents of the storage bin in the format Name, function,
and ID (see test cases below)
Create a Tool.java class with the following properties:
• String to store the name of the tool
• Tool(String name) constructor to set up the name of the tool
• getName():String method to return the name
• toString(): String method which returns the name of the tool.
Create a Hammer.java, Saw.java, and Level.java class by extending the Tool class. Each class should
have the following properties:
• A String to store the function of the tool
• Hammer(String name): constructor to set the name by calling super()
• setFunction(String function):void method to set the function of the tool
o Hammer function: “I hammer stuff”
o Saw function: “I saw stuff”
o Level function: “I make sure everything is even”
• toString():String override the parent’s toString() method to return the tool’s name + function
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