Exercise #2: Design and implement class Stock to represent a companys stock. The class defines the following attributes (variables) and methods:

1. A class (Changed from private) variable of type String named Symbol for the stocks symbol.

2. A class (Changed from private) variable of type String named Name for the stocks name.

3. A class (Changed from private) variable of type double named previousClosingPrice to store the last closing price.

4. A class (Changed from private) variable of type double named currentPrice to store the current price.

5. A constructor method to create a stock with user-specified name and symbol.

6. Method getName() that returns the stocks name.

7. Method getSymbol() that returns the stocks symbol.

8. Method setClosingPrice() that sets the previous closing price.

9. Method setCurrentPrice() that sets the current price.

10. Method getChangePercent() that returns the percentage changed from

previousClosingPrice to currentPrice. Using the formula:

-(previousClosingPrice - currentPrice) / previousClosingPrice * 100

11. Method either named toString(), in Java and C#, or __str__() in Python to printout a meaningful description of a stock object when passing the object name to the print statement.

The statement PRINT yahooStock would print the string:

Yahoo stocks closing price is $234.54

Now design and implement a test program to create two stock objects: one for Google with symbol GOG and the second is for Microsoft with symbol MSF. Set their closing and current prices according to the information below. Next, test the class methods on each object to print the information in a similar manner to the one shown below.

Sample run:

Google stock:

Symbol: GOG

Closing price: 134.67

Current price: 131.98

Change percent: - 2%

Google stock closing price is $131.98

Microsoft stock:

Symbol: MSF

Closing price: 156.52

Current price: 161.22

Change percent: 3%

Microsoft stock closing price is $161.22