C/C++ :: Receiving Information From A File?
Nov 13, 2014
I want to receive an information from a file. For instance, you created a file name "sample.txt" via fstream and stored a bunch of people's name, address, phone number in that "sample.txt".
Now, I want to see what's stored in this file. Suppose, I wanted some particular guys address, phone number by just typing is his/her name.
How to relate the name with address and phone number of particular people? I just started the file creating so I wanted to know about it.
#include<iostream>
#include<conio.h>
#include<fstream>
#include<string>
using namespace std;
int main() {
ofstream outputData;
[code].....
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Jul 31, 2013
//---------------------------------------------------------------------------------------
//FUNCTION: vDelEditStudents()
//---------------------------------------------------------------------------------------
void vDelEditStudents() {
FILE *file = fopen("C:UserForCtxtgiro.txt", "rb");
Student StdStruct;
fseek(file, -sizeof(StdStruct) , SEEK_END);
fread(&StdStruct, sizeof(StdStruct), 1, file);
[Code] ....
The problem is that ... Even though it is reading from a a file, it is not reading a one struct. In this piece of code I'm trying to read the last struct, which should be k... The struct itself is here
Code:
typedef struct {
char StudentName[30];
uint16 StdAge;
uint16 StdNumb;
}Student;
And here is my input and output:
INPUT:
4
1 g 1 2
1 h 3 4
1 j 5 6
1 k 7 8
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Apr 12, 2014
I need to read some infos out of a .txt-file.
The problem is that i dont know how to do because 'getline' won't work i think.
the file looks like this:
*******************
Inventory of MyInventory
*******************
Some info
More info
-------------------
000 Toys 6.25
a short description
126/44 Cards 2.25
some text
*******************
Inventory of MyInventory2
*******************
Some info
More info
-------------------
000 Toys 6.25
a short description
126/44 Cards 2.25
some text
So what I need to know:
- the name of the Inventory (MyInventory, MyInventory2...)
- the numbers in each row (000,126/44...)
- the name what it is (Toys,Cards...)
- the price (6.25,2.25...)
- and the description(problem here is, that there are not the same amount of words for each description)
I tried it with 'getline' but this is not working because the lines are so different each time.
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Mar 12, 2013
I'm trying to add more student information to the specific txt file. I did struct my student information and separated it with an array with max size of 200.
The inside of my current file looks like
Toshi
Aka
Nonal
Donald
The first one represent student[0] and next one is student[1] and so on till student[199]. Right now, only 4 space is occupied, which means the array has information till student[3] but not from student[4] (I guess it has null condition).
What I want to do is, I want to add a new student information to student[4] and till student[199] once at each time.
So, my prompt will look like
Would like to add a new student? Y/N
(if yes goes to below statement and exit if NO)
Hi. Please enter the information of new student. ___________
Student added. Please press any key to continue.
If the key is pressed, it goes back to my initial prompt and continues till I press N.
I sure I'm not using for loop to do this thing, because I'm adding student name one by one.
However, the array is already occupied by other student name till student[3] so, I want to add a new student information to student[4] (I don't want to overwrite the current information). And if student[4] is occupied, then [5] and so on.
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Jan 12, 2014
I want to take the informaition from this file and save it into a struct the file conteins name age year (in char) and a grade it is somthing like this
file
Nikos Tolis 19 A 8
Iwanna Nikolaou 20 B 9
Kwstas Doukas 20 Β 6
Georgios Pappas 19 A 7
Iwannis Lekatis 20 Β 7
Nikos Ntoumas 19 A 5
Maria Oikonomou 20 B 6
Kwstas Argyrou 19 A 10
Irw Ntouma 20 B 8
Leuteris Doukas 19 A 6
I want to read till i found the '32' the space in ascii here is my code so far
Code:
#include<stdio.h>
#include<string.h>
#include<stdlib.h>
struct students
{
char *name;
int age;
[Code] ....
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Jul 31, 2014
I am trying to parse a text file that contains information and i cant seem to get started. For example, the text file looks like this:
idx=929392, pl= 12, name= someperson
age=19
state=ma
status=n/a
idx=929393, pl= 12, name= someperson2
age=20
state=ma
status=n/a
idx=929394, pl= 12, name= someperson3
age=21
state=ma
status=n/a
I want to parse the name and age into another text file like this format:
someperson 19
someperson 20
someperson 21
possibly include other attributes next to the age like idx?
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Apr 20, 2015
Create a simple data file like the example shown below containing the 4 dates below plus 10 or more additional dates. The file should include 1 date per line and each date should have the form MonthNumber-DayOfTheMonth-Last2DigitsOfTheYear with no extra spaces. All dates should be in this century. No error checking for invalid dates is necessary.
My Output displays like
February -19,1991
How do I get my program to ignore the dash between the dates?
#include <fstream>
#include <iostream>
#include <string>
#include <cmath>
using namespace std;
int main(){
const int M = 13;
[code]....
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May 18, 2013
i have written a student information storing program. it has add,delete,list,and update menu (in program i have written update == uptade,i know : P )
my question is i cant delete or update the information. where is my failure ?
Code:
#include<stdio.h>
#include<stdlib.h>
#include<string.h>
#include<conio.h>
#define max 3
struct og {
char id[12];
[Code]...
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May 6, 2013
my program wont output any information to the text file that I have specified it just creates it but it leaves it blank
#include <iostream>
#include<string>
#include<iomanip>
#include <fstream>
using namespace std;
class Carloan
[code]....
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Aug 28, 2014
I'm trying to open a file (contains member information) and store the information in an object, which is then inserted into a linked list. However, the current code just leaves a blank command window hanging with nothing happening.
main.cpp - [URL] ....
MemberProf.h - [URL] ....
MemberProf.cpp - [URL] ....
LinkedList.h -[URL] ....
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Nov 23, 2013
I created a simple program that writes some text to two different text files. how to create a program that would retrieve the information from those two files, and put them in a single file, first the content of input1 and then the content of input2. how to do this. Here is the program that I created that creates the two files.
#include <iostream>
#include <fstream>
#include <string>
int main() {
using namespace std;
string input1;
ofstream fout("input1.txt");
[Code]...
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Apr 4, 2014
Perhaps my original wording on this was confusing so I will ask a different way.
if I have a text file called
data.txt
and it has the following in it.
12345
67890
12345
67890
how would i read this information into an array called
int data[4][5]
This is in C.
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Dec 9, 2013
this last few days I've been coding this one particular file
Hero.cpp
namespace Hero {
namespace {
// all data here
}
}
then the code grew a bit to about 700 line
Then now I want to implement hero skill system It needs the access to data inside the unnamed namespace where I put just about everything.. but it's unnamed namespace, it's only valid within one file and I should hide all that data from Hero interface in Hero.h How should I do this ?
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Jan 10, 2013
I have a network data file that looks like this:
2476
112
213
321
426
531
634
7312
843
945
...
...
...
The first row has two values - number of nodes (24) and number of links (76). Then it has all the link details (76 rows of data). I want to read this data. I have written out the following function:
First the structure definitions:
typedef struct {
int arcno;
int tail;
int head;
} arc_data;
typedef struct {
int forwardStarPoint;
int reverseStarPoint;
[Code] .....
The code is able to read the first line of data (i.e. it displays the numNodes and numArcs as 24 and 76). But then I get a lot of errors like this one
`Access violation writing location 0xCCCCCCD8`.
The program then crashes.
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Jul 23, 2014
If I have a text file named, stuff at a specified path in the c : drive, how do I send the contents of this file to another computer using the Internet?
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Mar 31, 2014
For my intro to c programming class, our homework requires us to read a data file and emit various bits of information. the data file looks like this
#Domain: the URL
#Alexa: some kind ranking, small numbers are better
#Rank: another sort of ranking, big numbers are better
#Domain Alexa Rank Site Name
#------------ ----- ------- ---------
amazon.com 13 1177136 Amazon.com
google.com 1 4533883 Google
youtube.com 3 3637788 YouTube
[Code] ....
I've started and am able to get the correct number of lines, and the alexa number, but I keep getting some errors and am just unsure where to correct my code. This is what it looks like;
Code:
// Lexi Anderson
//CS 156
#include <stdio.h>
int main() {
[Code] .....
and once compiled, I get errors.
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May 17, 2014
I was trying to make a program in C that could take Personality Information from the user and store it in a text file. Then, when asked, could compare the results to other entries in the so called "data-base" and tell which is the best match. I tried a whole lot but couldn't think of a proper way.
(Stings and File IO are not my strong points)
I am using Code Blocks 10.05 and the standard GCC compiler.
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Dec 8, 2014
So I have to read from a file, and store the information in separate variables. My problem is that for some of the information I need multiple words, and for others I don't, so I cant simply store 1 word into a variable and store the next in another in so on. To demonstrate what I mean let me give an example.
Dog Cat Blue Bird Snake White Horse
I am able to store "Dog","Cat","Blue","Bird"...etc in variables but I don't know how to make it so I can store "Dog" in one variable, "Cat" in a second variable. and "Blue Bird" in a third variable. "Snake" would be the 4th and "White Horse" would be the fifth. How can I read a file and manipulate the pointer to grab what I need?
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Apr 2, 2014
Whenever I run my program, It should be taking this string of information:
Shampoo 10 8.75 87.50
Pen 3 2.50 7.50
Headphones 5 20.99 104.95
MacAir 1 879.23 879.23
Raspberries 6 4.99 29.94
Oranges 5 2.79 13.95
Apples 3 3.85 11.55
From one file and outputting it to another, the finished product should look like:
Shampoo 10 8.75 87.50
Pen 3 2.50 7.50
Headphones 5 20.99 104.95
MacAir 1 879.23 879.23
cheapest item = Pen
most expensive item = MacAir
total cost = 1079.18
shopper = Mary Kay
Raspberries 6 4.99 29.94
Oranges 5 2.79 13.95
Apples 3 3.85 11.55
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?
CODE:
#include <iostream>
#include <fstream>
#include <iomanip>
#include <float.h>
#include <sstream>
#include <string>
using namespace std;
ifstream input_file;
ofstream output_file;
[Code] ....
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Jul 15, 2014
How to search for a word in a text file and replace it with a new one. Such as employee address, or first name, etc.
Here's my code:
#include <iostream>
#include <string>
#include <fstream>
using namespace std;
int main(){
ifstream inFile; //declare ifstream as inFile and ofstream as outFile
[Code] ....
It is under choice 3, most of my program runs correctly but I am just stuck at this part.
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Jan 3, 2015
I am working on binary files in turbo c++ 3.5 and i want to create a library program. I want to add information about books in a binary file and do functions such as: Search and replace, delete a record, and etc.
I do this functions but i have 2 problems: 1. For example when i add 6 records about books to file, BooksReport function cant show all records and for example just show 4 or 5 records and when i search records, from 5 records, for example i just found 3 or 2 records. 2.When i search and replace a word on file, all records thats before this edited record, will be deleted.
#include <conio.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
void add();
void search();
struct {
char name[20];
[Code]...
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Mar 10, 2015
I'm trying to read the data from a file i/o and put them into an array of structs. But when I run the program, it gives me a bunch of "garbage" as an output. my code and see
#include<stdio.h>
#include <stdlib.h>
#include<string.h>
[Code].....
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Apr 1, 2015
Im trying to read and store several students information so that i can have an options menu where i can enter a student number and the program prints all the information stored about that student. The way i have it set up now, doesn't work for this because all info is reinitialized to stud1. Is there another way to store this info other than defining stud1, stud2,.....,stud200?
#include <stdio.h>
#include <stdlib.h>
#include <math.h>
#include <string.h>
struct student_info {
char first[20];
char last[20];
[Code]....
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Mar 28, 2014
how I can read information from a text file into an array so afterwards I can display the array and it will show the contents of the text file?
the information inside my text files consist of names and numbers like so: "Collins,Bills 80" should I separate the numbers and names into two separate text files one for names and one for numbers?
My code so far is this:
#include <iostream> //for cin and cout
#include <fstream> //for input/output files
#include <conio.h> //for getch
[Code]....
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Jan 25, 2015
How do i create a text file read and write in it but every time i reopen the program i must not override the data in the text file .
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Mar 10, 2014
I am writing a program that grabs information from a .dat file. I have the code all structured up, but I get these 2 errors that does not make any sense to me on how to fix the program.
errors (2):
Code:
Error1error LNK2019: unresolved external symbol "void __cdecl swap(class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > *,class std::basic_string<char,struct std::char_traits<char>,
class std::allocator<char> > *)"
[Code] ....
Error2error LNK1120: 1 unresolved externalsC:UsersMomDesktopDriveQuarter 2C++ProjectsDynamicDeptPayrollDebugDynamicDeptPayroll.exeDynamicDeptPayroll
.dat file contents:
Code:
Fogarty Bob 1 40 10.25
Smith John 2 38 8.72
Jones Mary 2 28 6.25
Arrmen William 1 15 8.22
Lavey Betty 1 32 15.00
source contents:
Code:
#include <iostream>
#include <string>
#include <fstream>
using namespace std;
//PROTOTYPES
void sort(int n);
void swap(string *p1, string *p2);
[Code] ....
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