Design a class named Stock that contains:

1. A string data field named symbol for the stock's symbol.
2. A string data field named name for the stock's name.
3. A double field named a previous closing price that stores the stock price for the previous day.
4. A double data field named a current price that stores the stock price for the current time.
5. A constructor that creates a stock with a specified symbol and name.
6. A method named getChangePercent() that returns the percentage changed from previous closing price to currentPrice.

Draw the UML diagram for the class. Implement the class. Write a test program that creates a Stock object with the stock symbol JAVA, the name Sun Microsystems Inc, and the previous closing price of 4.5. Set a new current price to 4.35

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