Chapter 9, Problem 9.2PE

(The Stock class) Following the example of the Circle class in Section 9.2, design a class named Stock that contains:

• A string data field named symbol for the stock’s symbol.
• A string data field named name for the stock’s name.
• A double data field named previousClosingPrice that stores the stock price for the previous day.
• A double data field named currentPrice that stores the stock price for the current time.
• A constructor that creates a stock with the specified symbol and name.
• A method named getChangePercent () that returns the percentage changed from previousClosingPrice to currentPrice.

Draw the UML diagram for the class then implement the class. Write a test program that creates a Stock object with the stock symbol ORCL, the name Orac1e Corporation, and the previous closing price of 34 . 5. Set a new current price to 34. 35 and display the price-change percentage.