Design a class named Stock that contains: A string data field named symbol for t

Question

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 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 specified symbol and name.
A method named getChangePercent() that returns the percentage changed from previousClosingPrice to currentPrice.

Draw the UML diagram for the class. Implement the class. Write 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 currentprice to 4.35

Explanation / Answer

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public class Stock {
private String symbol;
private String name;
private double previousClosingPrice;
private double currentPrice;

public Stock( String s,String n)
{
symbol=s;
name=n;
}
public void setPrevious(double p ) {
previousClosingPrice=p;
}
public void setCurrent(double p ) {
currentPrice=p;
}
public double getChangePercent() {
return (currentPrice-previousClosingPrice)/ previousClosingPrice;
}

}

----------------------------------------

import java.util.*;
public class StockTest{
public static void main(String[] args)
{Scanner input = new Scanner(System.in);
Stock s=new Stock("JAVA","Sun Microsystems Inc");
s.setPrevious(4.5);
s.setCurrent(4.35);
System.out.println("% change is "+s.getChangePercent());

}

}

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