i have two issues that i need help.
1- that in case three and two only one line is being read from the file
2- my case 4 is not working correctly as it should as the output is only
" Enter 1 for Trump, 2 for Warren:"
#include <iostream>
#include <cctype> // For the letter checking functions
#include <fstream> // For file input
#include <iomanip> // For setw
#include <ctime>
#include <cstdlib> // For exit and abs
#include <errno.h>
#include <string>
//#include <string.h>
using namespace std;
int main() {
//import random;
int option;
//Option
user select is saved in this variable.
int print_lines = 1;
//Lines to print is selected by a user.
int trump_lines = 0;
//Total lines in a trump file.
int warren_lines = 0;
//Total lines in a warren file.
int random_start = 1;
//Random start location to read from a file.
int line_num = 0;
int userInput; //Current line number reading from a file.
int numberOfQuizzes; // How many times a quiz has been taken.
int numberOfQuizCorrect; // How many times the user got the quiz
correct.
string read_line;
//Read line from a file is stored in this
string.
ifstream trump;
//trump file object.
trump.open("Trump.txt"); //Open a trump
file.
if (!trump.is_open())
{
cout << "Trump file is not
opened.\n";
cout << "Error code is: "
<< errno << endl;
return -1;
}
getline(trump, read_line);
trump_lines = stoi(read_line); //Assign total lines in
a trump file.
ifstream warren;
warren.open("Warren.txt");
if (!warren.is_open())
{
cout << "Warren file is not
opened.\n";
cout << "Error code is: "
<< errno << endl;
return -1;
}
getline(warren, read_line);
warren_lines = stoi(read_line); //Assign
total lines in a warren file.
//Initialize Random number generator.
srand(time(0));
while(true)
{
cout << " Program 2: Rally
Songs "<<endl;
cout <<"Select from the following:\n";
cout << " 1. Set number of
lines to display\n";
cout << " 2. Get random lines
from Trump.txt\n";
cout << " 3. Get random lines
from Warren.txt\n";
cout << " 4. Rally song
quiz\n";
cout << " 5. Exit the
program\n";
cout << "Your choice --> ";
//cout << "Choose One of the
above option.\n";
cin >> option;
switch (option)
{
case 1:
cout <<
"Enter number of lines to print.\n";
cin >>
print_lines;
break;
case 2:
random_start
= rand() % (trump_lines - print_lines);
line_num =
0;
while (line_num
!= random_start && getline(trump, read_line))
{
line_num++;
}
for (int i = 0;
i < print_lines; i++)
{
getline(trump, read_line);
cout << read_line << endl;
}
trump.seekg(0);
//Set file pointer to start of a file.
//cout <<
getline(trump, read_line) << endl;
break;
case 3:
random_start =
rand() % (warren_lines - print_lines);
line_num =
0;
while (line_num
!= random_start && getline(warren, read_line))
{
line_num++;
}
for (int i = 0;
i < print_lines; i++)
{
getline(warren, read_line);
cout << read_line << endl;
}
warren.seekg(0);
//Set file pointer to start of a file.
break;
case 4:
// Get random lines from a mystery candidate, and prompt for user
guess
if( rand() % 2 == 0) {
read_line = "Trump.txt";
}
else {
read_line = "Warren.txt";
}
// Get the user guess of who it is
cout << endl;
cout << "Enter 1 for Trump, 2 for Warren: ";
cin >> userInput;
cout << endl;
// Compare user guess to correct answer and update quiz
score.
numberOfQuizzes++; // Increment the number of times the quiz has
been taken
// Give a point if quiz answer was correct
if( (userInput == 1 ?: trump_lines == 'Trump.txt' ) ||
(userInput == 2 ?: warren_lines == 'Warren.txt' )
) {
cout << "Correct! ";
numberOfQuizCorrect++;
}
else {
cout << "Wrong! ";
}
return 0;
}
}
}
/******************************************************************************
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Code, Compile, Run and Debug C++ program online.
Write your code in this editor and press "Run" button to compile
and execute it.
*******************************************************************************/
#include <iostream>
#include <cctype> // For the
letter checking functions
#include <fstream> // For file
input
#include <iomanip> // For
setw
#include <ctime>
#include <cstdlib> // For exit
and abs
#include <errno.h>
#include <string>
using namespace std;
int main ()
{
int option;
//Option user select is saved in this variable.
int print_lines = 1; //Lines to
print is selected by a user.
int trump_lines = 0; //Total lines
in a trump file.
int warren_lines = 0; //Total lines
in a warren file.
int random_start = 1; //Random start
location to read from a file.
int line_num = 0;
int userInput; //Current line number
reading from a file.
int numberOfQuizzes; // How many
times a quiz has been taken.
int numberOfQuizCorrect; // How many times the user got
the quiz correct.
string read_line; //Read line from a
file is stored in this string.
ifstream trump; //trump file
object.
trump.open ("Trump.txt"); //Open a trump file.
if (!trump.is_open ())
{
cout << "Trump file is not opened.\n";
cout << "Error code is: " << errno << endl;
return -1;
}
//getline (trump, read_line);
//trump_lines = stoi (read_line);
//Assign total lines in a trump file.
while (getline(trump, read_line))
trump_lines++; //This should be the logic for total lines
ifstream warren;
warren.open ("Warren.txt");
if (!warren.is_open ())
{
cout << "Warren file is not opened.\n";
cout << "Error code is: " << errno << endl;
return -1;
}
//getline (warren, read_line);
//warren_lines = stoi (read_line);
//Assign total lines in a warren file.
while (getline(warren, read_line))
warren_lines++; //This should be the logic for total lines
//Initialize Random number generator.
srand(time(0));
while (true)
{
cout << " Program 2: Rally Songs " << endl;
cout << "Select from the following:\n";
cout << " 1. Set number of lines to display\n";
cout << " 2. Get random lines from Trump.txt\n";
cout << " 3. Get random lines from Warren.txt\n";
cout << " 4. Rally song quiz\n";
cout << " 5. Exit the program\n";
cout << "Your choice --> ";
cin >> option;
switch (option)
{
case 1:
cout << "Enter number of lines to
print.\n";
cin >> print_lines;
break;
case 2:
trump.seekg(0);
//Correrction in printing random lines
for(int i=0;i< print_lines;i++)
{
random_start = rand() % trump_lines;
line_num=0;
while(getline(trump, read_line))
{
line_num++;
if(line_num == random_start)
{
cout << read_line<<endl;
}
}
}
// random_start = rand () % (trump_lines - print_lines);
// line_num = 0;
// while (line_num != random_start && getline
(trump, read_line))
// {
// line_num++;
// }
// for (int i = 0; i < print_lines; i++)
// {
// getline (trump, read_line);
// cout << read_line << endl;
// }
trump.seekg(0); //Set file pointer to
start of a file.
break;
case 3:
warren.seekg(0);
//Correrction in printing random lines
for(int i=0;i< print_lines;i++)
{
line_num=0;
random_start = rand() % warren_lines;
while(getline(warren, read_line))
{
line_num++;
if(line_num == random_start)
{
cout << read_line<<endl;
}
}
}
// random_start = rand () % (warren_lines -
print_lines);
// line_num = 0;
// while (line_num != random_start && getline
(warren, read_line))
// {
// line_num++;
// }
// for (int i = 0; i < print_lines; i++)
// {
// getline (warren, read_line);
// cout << read_line << endl;
// }
warren.seekg (0); //Set file pointer to
start of a file.
break;
case 4:
// Get random lines from a mystery candidate, and prompt for user
guess
int ans;
if (rand () % 2 == 0)
{
//read_line = "Trump.txt";
ans=1;//Added additional variable to check for
option
getline(trump, read_line);
cout<<read_line<<endl;
}
else
{
//read_line = "Warren.txt";
ans=2;
getline(warren, read_line);
cout<<read_line<<endl;
}
// Get the user guess of who it is
cout << endl;
cout << "Enter 1 for Trump, 2 for Warren:
";
cin >> userInput;
cout << endl;
// Compare user guess to correct answer and update quiz
score.
numberOfQuizzes++; // Increment the number
of times the quiz has been taken
// Give a point if quiz answer was correct
// if ((userInput == 1 ? : trump_lines == 'Trump.txt')
||
// (userInput == 2 ? : warren_lines ==
'Warren.txt'))
if((userInput==1 && ans==1) ||(userInput==2
&& ans==2))//Checking if userInput is correct
{
cout << "Correct! ";
numberOfQuizCorrect++;
}
else
{
cout << "Wrong! ";
}
return 0;
}
}
}
You had some logic errors which is corrected
i have two issues that i need help. 1- that in case three and two only...
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