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Create a Java class called Invoice which has the following attributes

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Create a java class called Invoice which has the following attributes:
1. Item Number
2. Item Name
3. Unit price
4. Quantity
Include a constructor which sets the initial values of each attribute to 9999, “none”, 0 and 0 respectively. Provide set methods to set the values of these attributes. Include a method called displayCost() which computes the total cost of the item (quantity * unit price) and displays the item number, name , unit price, quantity and total cost. Save this class as
Create an application called which instantiates an object of the class Invoice. It provides the values of the attributes and displays them including the total cost. Save this application as
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