Write a program that opens two text files (input1.txt and input2.txt) for input and one for output (output.txt). The program should merge the two input files in the output files. While doing the merge, it will read one line from input1.txt and one line from input2.txt and write those in the output file one after other. Then it will read the next line from input1.txt and next line from input2.txt and write them one after other in the output file.
This is my code:
#include <iostream>
#include <fstream>
#include <string>
using namespace std;
int main() {
ofstream myproject;
myproject.open("input1.txt");
[Code] .....
I need to:
1. how to get the second line in the input1.txt file and so on.
2. After the writing in output.txt, count the number of lines in output.txt.
3. write the number of times term ‘line’ appears in output.txt file.
I'm learning to merge files, but I think I'm getting it all wrong.I'm trying to merge two .txt files, and have them alphabetized on the output file. I'm getting a couple of error codes that I'm not sure of.
These are my errors:
Quote
73 no match for 'operator>' in '(&line)->std::basic_string<_CharT, _Traits, _Alloc>::operator[] [with _CharT = char, _Traits = std::char_traits<char>, _Alloc = std::allocator<char>](((unsigned int)k)) > nTemp' 77 cannot convert `std::string' to `char' in assignment
I'm in a CIS 143 class which is Introduction to Programming using C++. We've been assigned a lab with little to no detail on how to do the things listed.
The purpose of this lab is to practice the file input and output concepts. For this lab you may assume that the input files exist and contain appropriate data inside of them.
Four separate text files* which contain the following lines, different for each file.
(*: This isn't on the lab, but don't worry about what the name, age, id, and major are. those can be random and I can just change them what they need to be)
Name Age Student ID Number Major
Your program should ask the user which of the four input files they would like to open, and then read the contents from the file. Once the contents have been read in, it should output to both the screen and a file named "output.txt" the four values were read in, arranged as follows:
"Hello <name>! You are a <age> years old <major> student, and your ID number is <ID number>"
Now I am by no means saying "Do it for me". I just need to know how to have a user type file1, file2, file3, or file4, and then have the program open that file, then have the output.txt file arrange the wording into the sentence above.
This is what I have so far and I don't think it is anywhere near correct:
#include <iostream> #include <fstream> #include <string> using namespace std; int main() { ifstream inFile; string file1; string file2;
I'm writing a program to merge all .txt files in a directory. I had the code working and then made small change. It started crashing and I couldn't get it back to working.
If I comment that section out, the code still works. But, I know that portion of the code works to copy text from one file to another! It's actually from the Schildt complete C reference and I have tested it several times on it's own.
I have come up with code for this, but am currently having issues finalizing it. It seems that it only puts out some of the numbers in a numerical order, but not all from both text files.
i need to write a c++ code which can merge contents of several .txt files into a single file. i used the following code , it works but after merging the result file contains the contents merged twice.I think it over writes the result.I want to do it without using command line.
#include<iostream> #include<fstream> using namespace std; int main() { std::ofstream("merge.txt"); system("type *.txt >> merge.txt"); system("pause"); return 0; }
The directions are to write a program that reads sorted integers from two separate files and merge the contents of the file to an output file (third file). The only standard output will be any errors to be reported and a “FINISHED” statement after all items have been processed.
file1.txt 2 4 6 8 10
file2.txt 1 5 11 12 15
Output.txt 1 2 4 5 6 8 10 11 12 15
This is the code I have so far, but it is not working, and I have put the two txt files in the same directory as my .cpp file. It is not working though still. What have I done wrong and how can I fix it to read these integers from the two numbers and merge the contents into a third file?
#include <iostream> #include <fstream> using namespace std; int main() { int num1; int num2; ifstream inputFile;
I am having an issue with the statement "Both the input and output files' names should be read from the command line." I don't understand what this means or what I need to do.
I'm trying to merge two files, The Adpoted.txt, and The Originals.txt, into one file, The Big Picture.txt. I'm compiling and getting an insane amount of errors, and am not even sure where to start with them :(. I'm getting errors for lines that don't exist. I suppose I should start with those that do!
#include <iostream> #include <fstream> #include <cstdlib> using namespace std; #define theAdopted "The Adopted.txt" //His family #define theOriginals "The Originals.txt" //Her family #define theBigPicture "The Big Picture.txt" //Our family int merge(ifstream&, ifstream&, ofstream&);
I'm having an issue with merging two files. Basically, my instructor gave me pseudocode and two files to merge together. Each file (a male client and a female client file) has three names and id numbers inside. The finished MergedClients.rtf should have all six clients in ascending ID order. I wrote the C++ code and after combing through a couple times to fix a few errors, it finally ran. The problem is it starts the process, but it doesn't ever finish.
I tried changing some of the bool expressions thinking I mixed up the true and false parts. After that the program ran and it created the new output file, but the file was empty. So, I don't think I mixed any of those expressions after all.
#include <iostream> #include <fstream> #include <string> using namespace std; int main(){ ifstream inFile1; ifstream inFile2;
So I'm trying to output 2 different text files, one has customer names and the other has items they are selling. I gave each customer an ID and each of their items has the same ID. Only problem is when I try to output it, it only outputs the first item with the same ID. I do not want to display the ID number at all, I think getline would show it so I am not using it.
I have managed to make a program that permutates a string with repetition.
I ran it to permutate "abcdefghijklmnopqrstuvwxyz1234567890" with a limit of 5 characters.
This took a little over 5 hours for my pc to process this and I ended up with a .txt 403MB in size. Needless to say I am unable to open this .txt in notepad without Notepad.exe not responding and me having to end the process.
So what I want to do is modify my code to break up the output in to several files rather than one. Possibly all permutations starting with a in one file, b in another, etc.
Here is my current code: #include <iostream> #include <string> #include <sstream>
[Code]....
As you can see it currently appends permutation.txt with all output. I would like it to make files like this permut_5char_a.txt, permut_5char_b.txt, etc.
cheapest item = Oranges most expensive item = Raspberries total cost = 55.44 shopper = Winnie B. The Pooh
When I run my code however, it doesn't get past shampoo and will continue to add shampoo to the total cost infinitely. How can I change the code to produce the proper information?
Assignment: Write a program that merges the numbers in two files and writes all the numbers into a third file. your program takes input from two different files and writes it output to a third file. Each input file contains a list of numbers of type int in sorted order from the smallest to largest. after the program is run, the output file will contain all the numbers in the two input files in one longer list in sorted order from smallest to largest. your program should define a function that is called with the two input - file streams and the out - put file stream as three arguments.
Okay, here is my code.
#include<iostream> #include<fstream> using namespace std;
int main() { int list1[25];//array for the first list int list2[25];//array for the second list
[Code] .....
I'm confused about where the two files (which contain lists of numbers) need to be placed in order to be read and if they need to be renamed or something.
My assignments asks for inputs of two files and then sorting them from small to largest in the third file. this is what I have so far. I am very lost... (first-time C++ student)
#include <iostream> #include <fstream> const int SIZE = 99; using namespace std; int main() { int num[SIZE], num1, temp, count =0; ifstream fin2; ifstream fin1;
'Write a program to match the user input string with the contents of text files and give the result as to which files contain the input string. This has to be done by using finite automaton.' (Any language can be used) So basically, the user will input a string (in the command line or a gui) and "we must pass the text files to the DFA" (I'm double quoting this because it's precisely what my professor told) and then display those files which contain the string. The string can be hard-coded, ie,the user will get the output file that contains a specific string. ex: 'hello'. The problem is, I have never done any program on DFA so I'm at a loss. how to write the program. Should I read the files first and then use some 'switch' or 'goto' conditions for the DFA? Below is a code I found on the internet for simulating a DFA accepting a specific string.
Code:
s: accept = false; cin >> char; if char = "m" goto m; if char = EOF goto end; goto s; m: accept = false; cin >> char; if char = "m" goto m; if char = "a" goto a; if char = EOF goto end; goto s; }
I would like to, when running cat, send in some data like "testing" to its stdin, and then catch the output of stdout, and put it into a character array variable.Currently the parent stalls till the child is done.I imagine the parent has to some how detect that the child executed 'cat', and then send in input to stdin?Then somehow detect that 'cat' is done executing, and read the output from stdout? I have looked around and found "dup2", but I don't understand how to send in and get data to the child from the parent, especially since the "file descriptors" is not pointing to any files in the first place..
So I have a project in which I am processing audio signals in real-time. I want to create a class to do this using the ASIO driver. I don't want to use a cross platform library nor do I want to use windows API as it is very slow.
I'm trying to write something that when a user is at the command line, the user can type and it displays of list of commands the user can use to run the application.
I have a project, a montly paycheck. So it checks the monthly paycheck of each employees. but my problem there is how to add a new employee when u are a user or in the output of program?
I am trying to make a simple program, I would like it to be able to do the following, Write a program that opens two text files (input1.txt and input2.txt) for input .The program should write the followings in the two files. input1.txt:
This is the first line in input1.txt. This is the second line in input1.txt. This is the third line in input1.txt. This is the fourth line in input1.txt.
input2.txt:
This is the first line in input2.txt. This is the second line in input2.txt. This is the third line in input2.txt.
What would be the best way to go about doing this? I wrote the program below, but I don't think that it works.
#include <iostream> #include <fstream> #include <string> int main() { using namespace std; string input1;
How to structure the input of one .dat file and outputting into another one. I have to loop through a file structured "doe, john, 1500", check for errors and then increase the mp by 50. You also have to do this through using a person class too. I think I need to use a while loop to go to eof and use getline to input correctly, but im not sure how to structure it.
Data file: Horowitz,Jake,1200.24 Flabitz,Bubba,1712.38 Blackwell,Sharon,1872.93 Molerat,Rufus,501.00 Goodall,Jane,1567.43 Sommerset,William,1359.57
for our school project, we have to make a program which involves three students and the prices each of them paid for the meals. The program has to calculate how much each of the students has to pay/receive to/from the others. Most of it, we got from our teacher. The error we are getting is that we have to 'take care of the input/output order'. So if you type in the names/numbers of the students in a different way, so for example if you type first number 1, then 0, then 2 and 0 and 1 have to pay money to number 2, number 0 has to be in front of 1. Our output is that number 1 is in front of number 0.
