Question

Mr. N. Vestor owns several different stocks. Data regarding these stocks can be found in a plain text file. Write a program that will read specific information from the file and display that information to the screen.

 AMZN~Amazon.Com Inc~1,402.05~+24.10~+1.75%~4,854,900~6,806,813~01/26/18~1523
 AAPL~Apple Inc~171.51~+0.40~+0.23%~39,128,000~6,710,843~01/26/18~1224
 BABA~Alibaba Group Holding Ltd~205.22~+6.89~+3.47%~23,757,801~4,875,576~01/26/18~100
 INTC~Intel Corp~50.08~+4.78~+10.55%~86,903,102~4,352,107~01/26/18~2213
 VMW~Vmware Inc~150.00~+12.37~+8.99%~27,806,600~4,170,990~01/26/18~1745
 WYNN~Wynn Resorts Ltd~180.29~-20.31~-10.12%~22,140,102~3,991,639~01/26/18~500
 FB~Facebook Inc~190.00~+2.52~+1.34%~17,745,000~3,371,550~01/26/18~750
 NVDA~Nvidia Corp~243.33~+6.98~+2.95%~12,902,001~3,139,444~01/26/18~1195
 NFLX~Netflix Inc~274.60~+4.90~+1.82%~11,016,300~3,025,076~01/26/18~812
 SBUX~Starbucks Corp~57.99~-2.56~-4.23%~51,846,000~3,006,550~01/26/18~915
 DVMT~Dell Technologies Inc Cl V~82.74~-5.70~-6.45%~35,703,301~2,954,091~01/26/18~1611
 MSFT~Microsoft Corp~94.06~+1.73~+1.87%~29,168,799~2,743,617~01/26/18~1751
 GOOGL~Alphabet Class A~1,187.56~+5.42~+0.46%~2,107,300~2,502,545~01/26/18~2462
 ABBV~Abbvie Inc~123.21~+14.91~+13.77%~19,614,201~2,416,666~01/26/18~10
 GOOG~Alphabet Class C~1,175.84~+5.47~+0.47%~2,018,300~2,373,198~01/26/18~1675
 PFE~Pfizer Inc~39.01~+1.78~+4.78%~48,805,004~1,903,883~01/26/18~55

The pieces of data above are delimited using the ~ character. Each line of data contains the following in the order listed.

a single space

the stock's symbol

name of a NASDAQ stock

the stock's value at close of day indicated by report date

how much the stock's value has changed since the last report

how much the stock's value has changed since the last report as a percentage

the number of contracts traded for the day

the price volume (current price times current volume divided by 1000)

the report date

the number of shares owned

Use get(), getline() and ignore() as needed to read the needed pieces of data from the stock information file. Any data that is not needed should be ignored rather than read. For the first five stocks, display the name of the stock, the stock's value and the number of shares owned. You should then calculate and display the total amount of worth (the number of shares multiplied by the stock's value).

Challenge: Display the numbers using commas.

Answer 1

#include <iostream>
#include <cstdlib>
#include <sstream>
#include <string>
#include <fstream>
#include <iomanip>
#include <limits>

using namespace std;
void removeCommas(string& str1, int len);
int main(int argc, char** argv)
{

string input_file = "stock.txt";
ifstream ifsInputFile(input_file.c_str());

if (ifsInputFile.is_open ()){
string strLine;
while (getline (ifsInputFile, strLine))
{
// input file stucture is below
// a single space
// the stock's symbol
// name of a NASDAQ stock
// the stock's value at close of day indicated by report date
// how much the stock's value has changed since the last report
// how much the stock's value has changed since the last report as a percentage
// the number of contracts traded for the day
// the price volume (current price times current volume divided by 1000)
// the report date
// the number of shares owned

stringstream ssWordsBuf (strLine);
string stock_symbol, stock_name, stock_value_close_of_day, stock_value_since_last_report ;
string stock_value_since_last_report_percentage, number_of_contracts, price_volume, report_date, no_of_shares;
char space = ssWordsBuf.get();
getline(ssWordsBuf, stock_symbol, '~'); //1
getline(ssWordsBuf, stock_name, '~'); //2
getline(ssWordsBuf, stock_value_close_of_day, '~'); //3
int i = stock_value_close_of_day.length();
removeCommas(stock_value_close_of_day, i);
stringstream stream_stock_value (stock_value_close_of_day);  
double stock_value = 0.0;
stream_stock_value >> stock_value;
ssWordsBuf.ignore(numeric_limits<streamsize>::max(), '~'); //4
ssWordsBuf.ignore(numeric_limits<streamsize>::max(), '~'); //5
ssWordsBuf.ignore(numeric_limits<streamsize>::max(), '~'); //6
ssWordsBuf.ignore(numeric_limits<streamsize>::max(), '~'); //7
ssWordsBuf.ignore(numeric_limits<streamsize>::max(), '~'); //8
getline(ssWordsBuf, no_of_shares, '~');   
stringstream stream_stock_value1 (no_of_shares);  
double shares = 0.0;
stream_stock_value1 >> shares;  

cout << setw(10) << stock_symbol<< setw(40) << stock_name<< setw(20) << fixed << setprecision(2 )
<< stock_value_close_of_day<< setw(20) << no_of_shares << setw(20) << fixed << setprecision(2 ) << (stock_value * shares) ;
cout << endl;

}
ifsInputFile.close();
}

return 0;

}

void removeCommas(string& str1, int len)
{
int j = 0;
for (int i = 0; i < len; i++) {
if (str1[i] == ',') {
continue;
}
else
{
str1[j] = str1[i];
j++;
}
}
str1[j] = '\0';
}