C :: How To Input Lines At A Specific Area In File
Feb 15, 2013how can i input lines at a specific area in my file. please provide code
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Visual C++ :: Find Specific String Of Lines In A Text File
Oct 15, 2013I am trying to print a specific line from a textfile
e.g
I have a text file called info.txt and inside it contains the id,item name, price, quantity
Code:
1,shirt,100,10
2,pants,50,9
3,pen,20,8
I know how to find a specific word at the line in the file but how do I find and print out the specific line e.g(print out just the entire contents of line 2)?
Code:
string temDescription;
ofstream fout;
int curLine = 0;
[Code].....
C++ :: Extracting Specific Lines Of Text From A Text File
Aug 2, 2014I have a text file called (Test.txt) with the following text:
This is line one
This is line two
This is line three
How do I go about writing a program that will print a line of text (e.g. "This in line two" on the console screen?
All I can seem to do is display the entire text file.
C++ :: Read Story From Input File / Separate Words And Output Lines On Which The Word Occurs
Feb 21, 2014I have program that is supposed to read in a story from an input file and separate the words and output the lines on which the word occurs. It needs to read in another input file that has a list of words (1 per line) to ignore. i.e. skip them when running through the story. This is what I have so far, I've changed multiple things trying to get it running....
#include<iostream>
#include<fstream>
#include<map>
#include<set>
#include<vector>
#include<string>
#include"split.h"
[Code] .....
C :: Calculator - Input Specific Number?
Feb 11, 2013In my calculator, I am trying to make it so that you put enter 1 to add, 2 to subtract, 3 to multiply, and 4 to divide. I am facing the issue of making it so that you must enter a number, however instead of it being any number, it must be 1, 2, 3, or 4, and if it is not any of those numbers, you must re-enter the number. Here is a little snippet of my code:
Code:
printf("Please enter 1 to add, 2 to subtract, 3 to multiply, or 4 to multiply: ");
while (scanf("%d", &input) != 1) {
while (getchar() != '
');
printf("Invalid option. Please try again: ");
[Code] ....
how I can make the loop affect specific numbers.
C# :: Sending Input To Specific Window
Feb 18, 2014I have some experience in C# and choose the project of a "rapidfire script". It is a program, which shoot rapidly in a FPS by sending a "left-mouse-button-click" over and over again while the "real" left mouse-button is down.
Now, I tried multiple ways of sending the left mouse button but none of them worked the way I wanted them to. I tried SendMessage, PostMessage and mouse_event. One of them made the window unresponsive, another only pressed the mouse button while I was still moving the mouse and another didn't work at all.
I know a script which does exactly that and is coded in AutoHotKey. AHK is open-source but since I am not familiar with C++, it is very hard for me to understand what exactly is going on here:
AutoHotKey: keyboard_mouse.cpp
And here is the AutoHotkey-Script: AutoHotKey - pastebin.com
And my current code. The input delay is very irregular and strange. Sometimes the real "right mouse button click" gets ignored and I don't know why.
if (State == RapidfireState.ACTIVE) {
// Check if the left mouse button is down. If it is, send fire commands to the game
if (MouseDown()) {
[Code]....
C++ :: Reading Specific Input Syntax - String Parsing
Apr 21, 2013I need reading a specific input syntax.
something like
<Input> :: R C <Content>
3
3
.3. .15 9.2
.1. ..6 ...
6.5 7.. ...
... .5. ..9
4.7 .8. 1.6
9.. .6. ...
... ..1 7.4
... 6.. .9.
5.1 49. .3.
C++ :: Looping User Input For Specific Data Type
Apr 17, 2015Here's my code so far:
Code:
#include <iostream>
#include <iomanip>
using namespace std;
int main() {
int dayNumber = 1;
[Code] ....
The code, when run, prompts the user to input an integer like this:
Code:
Day 1
Andy :>12
Bill :>7
Charlie :>15
Day 2
Andy :>5
Bill :>25
Charlie :>14
.
.
.
etc.
Ok, so the code prompts the user to enter an integer for each of the 3 persons and then increments the "Day" and so on... When the user enters a negative value (-1, -2, etc.), the loop is broken and the program ends. Alright, everything is hunky-dory so far. 2 things which I can't figure out.
1. when the user doesn't enter anything and just hits return, the cursor drops a line and is still awaiting an input but doesn't show the prompt "Andy :>", for example. How can I get it to repeat the last prompt when the user doesn't enter anything? Like:
Code:
Day 1
Andy :>
Andy :>
Andy :>12
Bill :>25
Charlie :>15
.
.
etc.
2. When the user enters a letter or a special character, the program blows up. How can I correct this?
I've tried changing the data type for the variable used for the input, tried using getline, get, etc. With my current beginner knowledge, I'm missing something. So how can I get this to work?
The program should allow only integers to be entered, while allowing a negative number to trigger the loop to break or the program to end, and while re-prompting the last person if the user entered an invalid input.
C :: Program That Counts Letters Of 3 Lines Of Input From User
May 26, 2013So I am writing a program that counts the letters of 3 lines of input from the user. I am using a 3 x 80 character array as the "notepad". Upper and lower case characters are incremented on the same counter array.
Code:
/*Letters in a string*/
#include <stdio.h>
#include <string.h>
#include <ctype.h>
void countAlphabet(char *);
/*Character counting array*/
int alphabet[26] = {0};
[Code]...
C :: Counting Function - Prints All Input Lines That Are Longer Than 80 Characters
Jan 10, 2014I'm doing an exercise that prints all input lines that are longer than 80 characters. I rather not use any libraries so I decided to write my own function that counts characters to use it in my main program. However when integrate things my function returns zero all the time.
Here is my full code:
/* Exercise 1-17 Write a program to print all input lines that are longer than 80 characters */
#include<stdio.h>
/* Declarations*/
#define MAX_STRING_LEN 1000
int count_characters(char S1[]);
int main() {
[Code] .....
So I was trying to debug my count_characters() function and this is the code if I was to run it seperately:
Code:
#include <stdio.h>
/* counts character of a string*/
main() {
int nc = 0;
int c;
for (nc = 0; (c = getchar()) != '
'; ++nc);
printf("Number of characters = %d
", nc);
}
which works...
C :: Count Lines In Input And Display Output In Terminal When Program Executed After Compilation
Feb 4, 2013Code:
#include <stdio.h>
main() {
int c, n1;
n1 = 0;
while ((c = getchar()) != EOF)
if (c == '')
++n1;
printf("%d", n1);
}
I have a more complicated program I'm wishing to have display the output, however, to save some time I'm using an example of a shorter version. count the lines in input and display the output in terminal when ./program is executed after compilation. To count and compute lines, words and within arrays.
C++ :: Program Breaks If Copy Stuff With Multiple Lines Into Console - Clearing Input Buffer
Apr 16, 2014Using cin.sync() works great so far, but my program still breaks if you copy something with multiple lines into the console.
string test = "";
while(true) {
cin.sync();
getline(cin, test );
cout << endl << "test: " << test << endl;
}
However, if you were to copy this:
1
2
3
and paste it into the program, the output would be1
2
3
test: 1
test: 2
And if you press enter one more time:1
2
3
test: 1
test: 2
test: 3
The 3 finally pops out.
C++ :: Print Custom Area Of Screen - Save As Image File
Sep 9, 2014I am trying to automatically(periodically) print screen a custom area of the screen, save it as an image file (the image will have the same format always), and then use OCR to get the text in the image as usable string variables. Is this doable? I was looking into tesseract OCR but I find it a bit unclear.
View 10 Replies View RelatedC++ :: How To Make Specific Character Show Up Specific Amount Of Times
Mar 5, 2013How do I make a specific character show up a specific amount of times?
Like I am generating a random number then I need to make "|" show up that many times on the screen.
C :: Reading From A File And Skipping Lines To Find String In File
Nov 26, 2013Program background: Ticket Sales Details You will sell tickets in advance and at the door. Prices for buying in advance and at the door will be given. Also, the total number of tickets sold in advance will be given. Each guest will have a unique number. If there are n tickets sold in advance, then these guests will be numbered 0 through n-1. As the event starts, requests to buy tickets at the door may be made and these guests will be numbered sequentially, starting at the lowest unassigned number. The maximum number of guests will be 1000. The first line of the file contains the following three values, separated by spaces: Cost of the presales tickets (in dollars), Cost of the tickets at the door (in dollars), and the number of presale tickets. The first two values will be positive real numbers to two decimal places and the last will be a positive integer.
The second line of the file will contain one positive integer representing the number of auction items followed by a positive real value to two decimal places (at most) representing the minimum bid increment, in dollars. The first value is guaranteed to be 1000 or less and the second will be in between 1 and 50, inclusive.
The third line of the file will contain all the prices of the auction items, in dollars, separated by spaces, in order. Thus, the first price is the price of item 0, the next price is the price of item 1, and so on. These values will be real numbers represented to up to 2 decimal places.
The fourth line of the file will contain the three following positive integers pertaining to the raffle: the number of raffle tickets available, the cost of a raffle ticket in dollars, and the number of raffle prizes. (It's strange to have raffle tickets that don't cost a whole number of dollars.)
The fifth line of the file will contain each of the values of the raffle items, in dollars, separated by spaces, in order. Thus, the first price is the price if item 0, the next price is the price of item 1, and so on. These values will be real numbers with upto 2 decimal places.
The sixth line of the file will contain ten positive integers representing the number of each of the drinks 0 through 9, in order, that are in stock.
The seventh line of the file will contain ten positive real numbers with upto 2 decimal places representing the price of each of the drinks 0 through 9, in order.
The eighth line of the file will contain a single positive integer, numEvents, representing the number of events that occur at the charity ball. These events are split into two groups: actions by guests at the ball and awards given (raffle, auction, person, totalrevenue). All of the actions precede all of the awards. You will produce exactly one line of output for each event described. Here are the formats of each event that could occur:
If a patron buys a ticket at the door, a command will be on a line by itself:
BUY TICKET k
where k is a positive integer indicating the number of tickets bought at the door. These guests will be numbered as previously mentioned. You are guaranteed that the total number of tickets bought, including presales, will not exceed 1000. This is what I have so far and I cannot figure out why it wont calculate the total revenue. I am not completely sure if it is even accessing the if statement in main.
Code:
#include <stdio.h> #include <stdlib.h>
#include <string.h>
#define N 1000
[Code].....
C++ :: TXT File - How To Get Each Specific Value And Add Them All Together
Oct 10, 2013so I wrote this code in class today and I'm almost done but I need to come up with some sort of equation to add up all the total values. The problem is I am reading data off a txt file so it's all being read as one thing. I don't know how to get each specific value and add them all together. This is my code so far.
#include <iostream>
#include <iomanip>
#include <string>
#include <fstream>
using namespace std;
[Code] .....
here's what's inside the input file
Chisel 50 9.99
Hammer 30 15.99
Nails 2000 0.99
Bolts 200 2.99
Nuts 300 1.99
Soap 55 1.89
I end up multiplying the amount by the price to get the total value as shown in the code above. Now I just don't know how to add the total value of each item to get the total overall value. Also I haven't used invTotal because I want that to be the overall total.
C++ :: How To Read Input Of Arbitrary Amount Of Numbers Instead Of Specific Amount
Feb 25, 2015I'm trying to make a program that allows the user to input an arbitrary amount of numbers and finding the largest of all the inputs but I keep having problems with the output.
javascript:tx('
#include <iostream>
using namespace std;
//******************************************
//CLASS COMPARATOR
//******************************************
class comparator {
public:
comparator();
[Code] .....
And regardless of what numbers I enter, I always get the output of 10. Also I got the EOF idea from my textbook so if there is a better way of doing this I'd like to hear it. I don't know any clear ways that looks nice to end the while loop when the user doesn't have any more numbers to enter.
C/C++ :: Getting Specific Info From A TXT File?
Oct 10, 2014I'm trying to open a text file with the name "text.txt", for the purpose of only displaying in the console an specific part of the text file. For example, if I got "This is a test [TEXT] This is the message that should display [/TEXT] this is the end of the file", I want only "This is the message that should display" to be the output, the thing is that I can't imagine anyway of doing that. what I should do?
View 5 Replies View RelatedC :: Erase From TXT File Lines That Contain One Name?
Feb 4, 2013Well, I have a .txt file that contains, together with a few characters, columns of values that I want to save in different files like is written in the program (file 1, file2, file3 - a with x, b with y, c with z). BUT, I don't want the values from the lines with the saying "interpolated_vector" to be printed in any of the three files.
What I have is the code below, that has the code that creates the three new files with the columns of values that I want. It is working fine!
Code:
#include <malloc.h>
#include <stdio.h>
#include <stdlib.h>
int i, count;
double *a, *b, *c;
double *x, *y, *z;
char tag[5][255];
[Code]...
I've tried and tried, but couldn't make it work properly. I could only erase one line with "interpolated_vector" using fgets, but all the other lines below this were printed into the three new files (file1, file2, file3).
C++ :: Counting Lines From A File
Apr 23, 2013How I would go about counting lines from a file at the same time as extracting words? I need to know the line number to output what line the word is misspelled on. I tried getline and using sstreams but I could not get it to work.
void SpellCheck::checkValidWords(const string& inFileName) {
string eachword;
ifstream istream;
istream.open( inFileName.c_str() );
if ( !istream.is_open() ) {
[Code] .....
C++ :: Reading From Specified Lines In File?
Jul 13, 2013i want to read text between two indices in the file using file i/o operations in c++. HOw can i do it? for example, here is the text file:
1:
..
..
2:
..
..
3:
..
..
4:
in this text file i need to print only the lines between 2: and 3:. How could this be done?
C++ :: Read Only Certain Lines From CSV File
Oct 21, 2014I am trying to read lines from a CSV file and put the values into vectors. The CSV contains a large amount of data and I would like the program to only read certain lines from the CSV into the vectors. An example of the data is below. In my code the user inputs a secid. I would then like the code to only read lines from the csv where the secid matches what the user inputs. The secid's are also not in order so I can't just use a while loop.
My current code is below the data.
secideffect_datecusip ticker
10131014MAY19972313510 AMZN
10131008MAY19982313510 AMZN
10131028NOV20002313510 AMZN
10131023JUL20012313510 AMZN
10196601JAN199663858510 NB
10196601OCT199806605F10 BAC
ifstream infile3("filepath.csv");
if (!infile3) {
cerr << "Couldn't open file!"<<endl;
return 1;
[Code] .....
C++ :: Read Certain Lines From A File?
Aug 22, 2014I want to read certain lines from a file. Let say if the line contains word "makes", the line will be loaded on the screen.how to modify this code.
// reading a text file
#include <iostream>
#include <fstream>
#include <string>
using namespace std;
int main () {
string line;
[Code] ....
C/C++ :: Deleting Certain Lines In Txt File?
Dec 27, 2013I was assigned to modify Game Lobby code. All the data can be saved in txt file and can be displayed when running the code..How can i remove or delete the certain lines of a txt file when running the cmd?.. I cant program it to be able to delete certain lines but i manage to program to delete the entire data, which is not what i want..
Here's the code so far...
#include <iostream>
#include <fstream>
#include<vector>
#include<cstdio>
#include<iomanip>
#include <string>
using namespace std;
class Player {
public:
Player(const string& name = ""): m_Name(name), m_pNext(0) {}
[Code] ....
C :: Add More Student Information To The Specific Txt File?
Mar 12, 2013I'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.
C :: Updating Specific Data In The File
Mar 17, 2013Code:
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <conio.h>
#define MAX 200
[Code] ....
Inside of my studentinfo.txt file
Code:
Jnh Has 2353325 23 56 72 34 67 22 46 42 5 23 56 23
Daniel Laurent 6744590 10 20 30 40 50 60 70 80 90 100 40 50
This code is working totally fine. Right now, I'm trying to update a specific data from the student info. Let's say I'm trying to update my student number of Daniel. So, in this case, I want to replace 6744590 to some other student number. I think I have to use fseek() or rewind() and use fputs() but, I don't know how I should decide where to look.