Write a program to help a local stock trading company automate its systems. The company invests only in the stock market. At the end of each trading day, the company would like to generate and post the listing of its stocks so investors can see how their holdings performed that day. Assume the company invests in 10 different stocks. The desierd output is to produce two listings, one sorted by stock symbol and another sorted by percent gain from highest to lowest. The input data is provided in a file in the following format: symbol openingPrice closingPrice todayHigh todayLow prevClose volume. For example, the sample data is: MSMT 112.50 115.75 116.50 111.75 113.50 6723823CBA 67.50 75.50 78.75 67.50 65.75 378233 Add and/or overwrite the operations of the class listType to imple-stock objects. Therefore, the class stockListType is no longer a template.implement a stock object in a program, it is time to create a list of stockThe class stockListType must be derived from the class listType,Let us call the class to implement a list of stock objects stockListType.Now that you have designed and implemented the class stockType to(Note that this statement reads and stores the data in the relevant com-reads the data from the input file and stores it in the object mystock.was opened using the object infile. Further suppose that wystockFor example, suppose infile is an itstream object and the input fileThe following statement derives the class stockListType from thethe class stockListType is a very specific class, designed to create a list ofProgramming Exeroses 989infile >> mystock;ponents of mystock.)aobjects.aThe designed and implemented in the previous exercise. Howeverment the necessary operations on a stock listclass listType.lass stockListType: public listType{member list};The member variables to hold the list elements, the length of the list, andthe maximum size of the list were declared as protected in the classlistType. Therefore, these members can be directly accessed in theclass stockListType.Because the company also requires you to produce the list ordered bythe percent gain/loss, yeu need to sort the stock list by this component.However, you are not to physically sort the list by the component percentgain/loss. Instead, you will provide a logical ordering with respect to thiscomponent.lo do so, add a member variable, an array, to hold the indices of thestock list ordered by the component percent gain/loss. Call this arraysortIndicesGainLoss. When printing the list ordered by the compo-nent percent gain/loss, use the array sortIndicesGainLoss to printite a program that uses these two classes to automate the company'sanalysis of stock data.component of the stock list to print next.

Actually program is a executable software that runs on a computer.

Answered: Write a program to help a local stock…

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Write a program to help a local stock trading company automate its systems. The company invests only in the stock market. At the end of each trading day, the company would like to generate and post the listing of its stocks so investors can see how their holdings performed that day. Assume the company invests in 10 different stocks. The desierd output is to produce two listings, one sorted by stock symbol and another sorted by percent gain from highest to lowest. The input data is provided in a file in the following format: symbol openingPrice closingPrice todayHigh todayLow prevClose volume. For example, the sample data is: MSMT 112.50 115.75 116.50 111.75 113.50 6723823

CBA 67.50 75.50 78.75 67.50 65.75 378233

Add and/or overwrite the operations of the class listType to imple-
stock objects. Therefore, the class stockListType is no longer a template.
implement a stock object in a program, it is time to create a list of stock
The class stockListType must be derived from the class listType,
Let us call the class to implement a list of stock objects stockListType.
Now that you have designed and implemented the class stockType to
(Note that this statement reads and stores the data in the relevant com-
reads the data from the input file and stores it in the object mystock.
was opened using the object infile. Further suppose that wystock
For example, suppose infile is an itstream object and the input file
The following statement derives the class stockListType from the
the class stockListType is a very specific class, designed to create a list of
Programming Exeroses 989
infile >> mystock;
ponents of mystock.)
a
objects.
a
The designed and implemented in the previous exercise. However
ment the necessary operations on a stock list
class listType.
lass stockListType: public listType<stockType>
{
member list
};
The member variables to hold the list elements, the length of the list, and
the maximum size of the list were declared as protected in the class
listType. Therefore, these members can be directly accessed in the
class stockListType.
Because the company also requires you to produce the list ordered by
the percent gain/loss, yeu need to sort the stock list by this component.
However, you are not to physically sort the list by the component percent
gain/loss. Instead, you will provide a logical ordering with respect to this
component.
lo do so, add a member variable, an array, to hold the indices of the
stock list ordered by the component percent gain/loss. Call this array
sortIndicesGainLoss. When printing the list ordered by the compo-
nent percent gain/loss, use the array sortIndicesGainLoss to print
ite a program that uses these two classes to automate the company's
analysis of stock data.
component of the stock list to print next.

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