I can't read a txt file. I've tried with different pieces of code which should work and with different text files. The problem isn't that I got the wrong name (the file doesn't lack a txt or have an extra txt). Also, adding a second backwards slash \ or replacing it with forwards slash / doesn't fix it.
Here is the code:
// ConsoleApplication74.cpp : Defines the entry point for the console application.
//
#include "stdafx.h"
#include <iostream>
#include <fstream>
#include <string>
using namespace std;
#include <iostream>
#include <iomanip>
#include <fstream>
using namespace std;
int main() {
int sum = 0;
int x;
ifstream inFile;
inFile.open("C:\Users\chaim\SkyDrive\Documents\string\text1.txt");
if (!inFile) {
cout << "Unable to open file";
exit(1); // terminate with error
}
while (inFile >> x) {
sum = sum + x;
}
inFile.close();
cout << "Sum = " << sum << endl;
return 0;
}
Thanks!
"C:\Users\chaim\SkyDrive\Documents\string\text1.txt" should be "C:\\Users\\chaim\\SkyDrive\\Documents\\string\\text1.txt". That way you get backslashes at the appropriate places in the file name.
Related
okay I've searched everywhere and couldn't get my hand on it so ..
i'm doing a library system where a librarian enters his username and the program checks if he is one of the librarians or not
i'm stuck on the comparing part , i tried using getline but it gave me an error , tried gets_s and used a char array instead of a string and still didn't work
kindly help me with what i should do
using namespace std;
#include <iostream>
#include <string>
#include <fstream>
int main()
{
//opening files
ifstream readUsername;
ofstream enterUsername;
//variables
string existUsername;
string enteredUsername;
//reading files
readUsername.open("librarian usernames.txt");
if (readUsername.fail())
{
cout << "can't open file" << endl;
}
enterUsername.open("entered librarian username.txt");
if (enterUsername.fail())
{
cout << "can't open file" << endl;
}
while(!readUsername.eof)
{
readUsername >> existUsername;
}
enterUsername << enteredUsername;
readUsername.close();
enterUsername.close();
enterUsername.clear();
system("pause");
return 0;
}
#include <iostream>
#include <string>
#include <fstream>
using namespace std;
int main()
{
ifstream infile;
infile.open("listOfWords.txt"); //open file
for(string listOfWords; getline(infile, listOfWords, '.'); ) //read sentences including
//spaces
cout<<listOfWords; //this displays
return 0;
}
This shows you how to output the text so you should just save both files to a variable then compare the variables.
How can I read a txt file that contains non-English strings? After getting the string I will store it in a linked list, so it should be suitable for storing in a node either, then print it.
When I try the get string "türkçe" from the .txt file code below, it gives the output of:
output: tⁿrkτe
**word.txt**
türkçe
<string>
<iostream>
<fstream>
int main() {
fstream inputFile;
inputFile.open(word.txt);
string line;
getline(inputFile,line);
cout << line << endl;
return 0;
}
The solution of the problem:
#include <string>
#include <iostream>
#include <fstream>
#include <locale.h>
using namespace std;
int main() {
setlocale(LC_ALL, "turkish");
fstream inputFile;
inputFile.open("word.txt");
string line;
getline(inputFile,line);
cout << line << endl;
return 0;
}
/* In the text file I have a char followed by a blankspace then a string. I'm trying to read the char and string into seperated arrays. Any help is appreciated */
#include <iostream>
#include <fstream>
#include <string>
#include <cstdlib>
using namespace std;
int main()
{
char arrivOrDepart;
string licensePlt;
ifstream inFile;
inFile.open("Text.txt");
if (!inFile)
{
cout << "Can't open file" << endl;
return 1;
}
for (int i = 0; i < 4; i++)
{
getline(cin, arrivOrDepart[i]);
getline(cin, licensePlt[i]);
}
inFile.close();
cin.get();
return 0;
}
//text file
A QWE123
A ASD123
A ZXC123
A WER123
A SDF123
#include <fstream>
#include <iterator>
#include <vector>
this reads from file into vector
std::ifstream input("d:\\testinput.txt");
std::vector<std::string> bytes(
(std::istreambuf_iterator<std::string>(input)),
(std::istreambuf_iterator<std::string>()));
input.close();
then, just put the data into whatever container you want. you should almost always prefer vector over array btw
There are a few problems with the code:
getline is the wrong tool of choice for this. if you want to split a stream based on spaces, use >>.
arrivOrDepart and licensePlt are not defined as arrays but are used as arrays.
reading from cin, not from file.
My suggested fixes (excluding using vectors instead of arrays):
#include <iostream>
#include <fstream>
#include <string>
#include <cstdlib>
using namespace std; // avoid using this
int main()
{
const int MAXARRAY = 4; // avoid using magic numbers
char arrivOrDepart[MAXARRAY]; // made an array, but prefer std::vector
string licensePlt[MAXARRAY]; //made an array
ifstream inFile;
inFile.open("Text.txt");
if (!inFile)
{
cout << "Can't open file" << endl;
return 1;
}
string temp;
int i = 0;
while (i < MAXARRAY && // not overrunning the arrays
inFile >> temp >> licensePlt[i] && // read data from file stream
temp.length() == 1) // read only one character for arrivOrDepart
{
arrivOrDepart = temp[0];
i++;
}
inFile.close();
cin.get();
return 0;
}
Recommended reading:
Why is "using namespace std" considered bad practice?
What is a magic number, and why is it bad?
std::vector documentation (Alternate easier to read but often less accurate documentation)
std::getline documentation. Note the third parameter used to set the parsing delimiter.
I want the user to enter the name of a file, and if the file exists, print out all the contents of the file.
At the moment the uncommented code, takes a name of a file that the user inputs, for example. example.txt and prints out most (not the last word?) of the file. I've tried to implement this instead by using string (commented code is attempt) but clearly its incorrect.
I also wondering if i can automatically add .txt to the end of the user input, so that the console could ask - "which subject should we find more information on" user inputs "math" and it will open "math.txt"
Here is what I´ve tried:
#include <iostream>
#include <fstream>
#include <cstdlib>
#include <string>
using namespace std;
int main() {
char filename[50];
//string getcontent;
ifstream name;
cin.getline(filename, 50);
name.open(filename);
if (!name.is_open()) {
exit(EXIT_FAILURE);
}
char word[50];
name >> word;
while (name.good()) {
cout << word << " ";
name >> word;
}
//if (!name.is_open()) {
//while (! filename).eof())
//{
//getline(name, getcontent)
//cout << getcontent << endl;
//}
//exit(EXIT_FAILURE); //comes from cstdlib
//}
//}
system("pause");
return 0;
}
#include <iostream>
#include <fstream>
#include <cstdlib>
#include <string>
using namespace std;
int main() {
string filename;
string getcontent;
ifstream name;
cin >> filename;
filename.append(".txt"); // add extension.
name.open(filename);
if (!name.is_open()) {
exit(EXIT_FAILURE);
}
while (true)
{
getline(name, getcontent);
if (name.eof()) break;
cout << getcontent << endl;
}
return 0;
}
I found this and it helped me with a somewhat different problem and I also thought that I might be able to help. This is coded in windows. (I'm a beginner so forgive me if I made some obvious mistakes)
#include <iostream>
#include <fstream>
#include <cstring>
using namespace std;
ifstream fin;
int main()
{
//char filename[50],word[50];
string filename,word;
//cin.getline(filename,50);
getline(cin,filename);
//strcat(filename,".txt");
filename.append(".txt");
fin.open(filename);
if(fin.is_open())
while(fin>>word)
cout<<word<<endl;
else
cout<<"No such file"<<endl;
return 0;
}
This is my main method in a file called main.cpp:
#include <iostream>
#include "ReadWords.h"
#include "Writer.h"
#include <cctype>
#include <string>
using namespace std;
int main() {
int count;
int length;
string word;
cout << "Please enter a filename: " << flush;
char filename[30];
cin >> filename;
This is where I am trying to delete all the punctuation in the file. Currently I am able to read the file and print all the values. I am struggling to access the file and delete the punctuation. I know that I am to use ispunct. I have tried many different implementations but cannot get it to work. How do I delete all the punctuation in the file?
ReadWords reader(filename);
while (reader.isNextWord()){
count = count + 1;
reader.getNextWord();
}
cout << "There are: " << count << " words in this text file" << endl;
return 0;
}
This is another file called ReadWords where I have all my method declarations: I don't think this is relevant/needed
#include "ReadWords.h"
#include <cstring>
#include <iostream>
using namespace std;
void ReadWords::close(){
}
ReadWords::ReadWords(const char *filename) {
//storing user input to use as the filename
//string filename;
wordfile.open(filename);
if (!wordfile) {
cout << "could not open " << filename << endl;
exit(1);
}
}
string ReadWords::getNextWord() {
string n;
if(isNextWord()){
wordfile >> n;
return n;
}
}
bool ReadWords::isNextWord() {
if (wordfile.eof()) {
return false;
}
return true;
}
Read from the input file one character at a time.
For each character you read:
If the character is not punctuation, write it to the output file.
If the character is punctuation, don't write it to the output file.