Capital gain calculator, Programming Languages

This assignment is divided into two parts. The goal is to write a Java program that calculates capital gain on a stock market, see Lab 7.

When a share of common stock of some company is sold, the capital gain (or, sometimes, loss) is the difference between the share's selling price and the price originally paid to buy it. This rule is easy to understand for a single share, but if we sell multiple shares of stock bought over a long period of time, then we must identify the shares actually being sold. A standard accounting principle for identifying which shares of a stock were sold in such a case is to use a FIFO protocol - the shares sold are the ones that have been held the longest. For example, suppose we buy 100 shares at $20 each on day 1, 20 shares at $24 on day 2, 200 shares at $36 on day 3, and then sell 150 shares on day 4 at $30 each. Then applying the FIFO protocol means that of the 150 shares sold, 100 were bought on day 1, 20 were bought on day 2, and 30 were bought on day 3. The capital gain in this case would therefore be

100 × (30-20) + 20 × (30-24) + 30 × (30-36) = 100 × 10 + 20 × 6 + 30 × (-6),

or $940.

  1. Write a Linked Implementation of a queue described in Lecture 21. The Queue should use generics, so any type can be stored as the value. Save the definition of the class as
  2. Write a program that takes as input a sequence of transactions of the form

3.  "buy x share(s) at $y each"


"sell x share(s) at $y each"

assuming that the transactions occur on consecutive days and the values x and y are integers. Given this input sequence, the output should be the total capital gain (or loss) for the entire sequence, using the FIFO protocol to identify shares. Make use of the LinkedQueue class described above.

Posted Date: 2/20/2013 1:50:40 AM | Location : United States

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