Stock Portfolio

[Marilyn de Queiroz]

public class Stock
{
    //Instance variables
    public String price;
    public String shares;
    public String numOfShares;
    public long val;
    public Stock(String price)
    {
        this.price = price;
        //count = + 1
//      count ++; //increments the variable count
//      counter++; //increment the class variable counter
    }
    public String toString()
    //Default Constructor
    //public String toString()
    {
    String str = "The price is:"+ price +" \tand the shares is:" + shares +" \tand the number of shares is " + numOfShares;
        return str;
    }
    {
        price = "36 ";
    }
    //Parameterized Constructor
    public Stock(String pr,String sh,String num,long val)
    {
        //set some default values for the instance variables
        price = "pr";
        shares = "sh";
        numOfShares = "num";
        generateva();
    }
    public void setPrice(String pr)
    {
    }
    public void setShares(String sh)
    {
    }
    public void numOfShares(String num)
    {
    }
    
    //this will generate a value number useing theMath.random() method
    public void generateva()
    {
        val =(long)(Math.random() * 100 + 1);
    }
    {
        Stock pr  = new Stock ("price of stock");
        System.out.println(pr.toString());
    
        Stock sh = new Stock("price of shares");
        System.out.println(sh.toString());
    
        Stock num = new Stock("number of shares");
        System.out.println(num.toString());
    
        pr.toString();
        sh.toString();
        num.toString();
    }
    
    public String getPrice()
    {
        //price
        return price;
    }
    public String getShares()
    {
        //shares
        return shares;
    }
    public String numOfShares()
    {
        return numOfShares;
    }
    
    public float getval()
    {
        return val;
    }
}//end of class 

 public class PlayStock
{
    public static void  main(String[]args)
    {
        String price = "12 ";
        String shares= " 18 ";
        String numOfShares= " 32 ";
    
        Console con =new Console();
        PlayStock Stock = new PlayStock();
    }
} 

Can anyone help Lloyd?
[ July 16, 2003: Message edited by: Marilyn de Queiroz ]

[Marilyn de Queiroz]

Oops. The assignment got lost somewhere in the posting.

Stock Portfolio
Develop an application that allows users to "play the stock market." Users will be able to buy and sell stock, and find out the value of each stock as well as the value of their portfolio. Stock prices will fluctuate. This application will be developed in stages.

In stage I, you will create the Stock class that will have instance variables of name, purchase price, number of shares, and current price. You will need methods to gain access to the instance variables and method to randomly adjust stock prices up or down (generate a random number between -I and + I and multiply that value by the price per share and assign it to a variable called current price). A main() method can also be included for testing. There should be at least 9 methods for this class. The name of the class will be Stock.
In another class called PlayStock the main() method is where you should ask the user the name, purchase price and number of shares. Next, you will simulate the fluctuation of stock prices by increasing or decreasing the stock price randomly. After adjusting the price, print the stock name, purchase price, number of shares and current price. The main() method should also calculate and display the value of the stock by multiplying the number of shares by the current price, how much it was when purchased and the gain or loss (a positive number is a gain and a negative number is a loss).
To convert your stock names to upper case, use the toUpperCase() method of the String class. To round your decimal values, use the format() method of the DecimalFormat class.
[ July 16, 2003: Message edited by: Marilyn de Queiroz ]

[Marilyn de Queiroz]

In stage I, you will create the Stock class that will have instance variables of name, purchase price, number of shares, and current price. You will need methods to gain access to the instance variables and method to randomly adjust stock prices up or down (generate a random number between -I and + I and multiply that value by the price per share and assign it to a variable called current price). A main() method can also be included for testing. There should be at least 9 methods for this class. The name of the class will be Stock.

The class name is Stock. Good start, Lloyd.

I suggest that "name" should be a String, "purchasePrice" should be a double, "numberOfShares" should be an int (since you can't buy a fraction of a share), and "currentPrice" should be another double.

"methods to gain access to the instance variables" are usually called something like getName(), getPurchasePrice() etc. which return the variable. (That's already 4 methods) These types of methods are usually pretty straightforward.

You need a method to generate a random number. This one may take a little more research to fulfill the requirements stated above.

And your main method. So you only need three more methods.

[Marilyn de Queiroz]

In another class called PlayStock the main() method is where you should ask the user the name, purchase price and number of shares.

How are you going to get the input from the user?

Next, you will simulate the fluctuation of stock prices by increasing or decreasing the stock price randomly.

Here's the random stuff again.

After adjusting the price, print the stock name, purchase price, number of shares and current price.

Printing. That's pretty easy.

The main() method should also calculate and display the value of the stock by multiplying the number of shares by the current price, how much it was when purchased and the gain or loss (a positive number is a gain and a negative number is a loss).

Calculations. Also pretty easy. Multiplication, addition, subtraction. Is the result greater than or less than zero?