Java proramming help. Im a beginner programmer and I need help with doing this program on the eclipse IDLE. Please show step by step and follow the instructions provided.

Programming Exercise Chapter 3 - #5 Retailltem Class Use JOptionPane for I/O. Use constants where appropriate. Also add a 3 argument constructor to your Retailltem class that initializes the class fields to the values passed in. You should have a Retailltem.java and a testing class that houses your main. 5. RetailItem Class Write a class named RetailItem that holds data about an item in a retail store. The class should have the following fields: description. The description field is a string object that holds a brief description of the item. unitsonHand. The unitsonHand field is an int variable that holds the number of units currently in inventory. price. The price field is a double that holds the item's retail price. 1 Write appropriate mutator methods that store values in these fields, and accessor methods that return the values in these fields. Once you have written the class, write a separate program that creates three RetailItem objects and stores the following data in them: Description Units On Hand Price Item #1 Jacket 12 59.95 Item #2 Designer Jeans 40 34.95 Item #3 Shirt 20 24.95 B Console Employee.java D Employee Test.java x @ Javadoc Declaration public class 11 mployee st