I have a partially filled array and I want to put that into a text file. Say I don't know how partially filled it is. How would I stop at the very end of the array where it has the last amount of data.
ex.
int array[9] = {1,2,5,6};
ofstream output("txt file");
for(int i = 0;i < 9; i++){
output << array[i]
}
How would I stop as soon as i becomes 4 because that is when the array stops?
I am working on a wage application with four options which are as follows:
Subtracts an amount from the shop bank account (The account is text file "shop"). You do not need to add the same amount to another account but you should record the transaction with a timestamp in a separate file. The application should prevent the account balance from becoming overdrawn.
List the five most recent transactions to the screen. If there haven’t yet been five transactions then list all of them.
Print the account name, number and current balance to the screen.
Exit the program.
I have completed 1,3 and 4 but I am completely stumped as to how to go about number 2.
#include <limits>
#include "stdafx.h"
#include <iostream>
#include <fstream>
#include <ctime>
#include <string>
int read_balance(void);
void write_balance(int balance);
[Code] .....
I need to write a function with an array parameter and an int parameter.
That array has to be filled with first 10 prime numbers that are exact or higher than the int parameter... and then i need an average value of those 10 prime numbers...
The problem is im not really sure how i should do the part to fill the array with prime numbers that are higher than that int?? So any code samples that does that would be really nice... (the average part shouldnt do much problems i think, so i only need for that array fill...)
Code:
int avgprimearray (int higharray[], int somenumber){
}
I need to find the smallest number in my 10x8 arraygrid with random numebr filled in it
Here my Code:
#include <iostream>
using namespace std;
int main() {
int total,average,smallest;
int row=0;
int col=0;
[Code] ....
I need to create A program That makes a 12x10 Array Grid Filled With Random Numbers From 0-99.
Then I need To Allow The User To Input A Number Between 0-99 And Then The program will then search through the array and count how many of the users number there is inside the array.
Code:
#include <iostream>
using namespace std;
int main() {
int input;
int number;
int row=0;
int col=0;
int Array [12][10];
[Code] ....
Worked with genetic algorithms. im solving travelling salesman problem with genetic algorithm and unfortunately stuck at crossover im using partially mapped cross over. i have tried coding it but it some time does not gives valid tour. Looking for building its logic.
View 1 Replies View Relatedi have 3 arrays total, 2 of them i am comparing to see if any of the values match at all, and then i am putting the value that matches into the 3rd array. currently i am trying
int isthere (int match[], int maxmatchLength,
const int vec1[], int vec1Length,
const int vec2[], int vec2Length)
{
for (i=0; i<vec1Length; i++)
if vec1[i]==vec2[i];
vec1[i] = match[i];
}
But this will just match the same values are in the same spot. how do i fix it so that it compares one value in the first array to the whole second array, before going to the next number.
I am given a data file that contains sports data for 24 people. There are two rounds of the event. The first 48 lines of the file give the data for the 1st round and the second 48 lines give data for the 2nd round. The file looks like this:
Azrin, Neil
2.3 6.0 5.0 6.7 7.8 5.6 8.9 7.6
Babbage, Charles
2.3 5.6 6.5 7.6 8.7 7.8 5.4 4.5
Burks, Arthur
2.8 4.5 5.4 6.6 7.7 8.8 5.6 6.5
Crick, Francis
1.6 6.5 6.5 6.5 7.3 7.5 7.8 5.6
and so on ............
This data continues for all 24 people and then repeats with different score values for the second round. The first number after the persons name is the level of difficulty and then next 7 numbers are the scores. I am trying to get this data out of the file and set it up in the following format:
Name Of Person
Round 1: level of difficulty scores
Round 2: level of difficulty scores
So the table for the above data would look something like this:
Arzin, Neil
Round 1: 2.3 6.0 5.0 6.7 7.8 5.6 8.9 7.6
Round 2: 2.1 6.0 5.0 6.5 7.8 5.6 8.8 7.6
Babbage, Charles
Round 1: 2.3 5.6 6.5 7.6 8.7 7.8 5.4 4.5
Round 2: 2.3 5.4 6.5 7.6 8.7 7.2 5.4 5.5
And so on for all 24 people. This is the code I have for it, but it just reads the file directly:
// I have already opened the file!
while (inFile) {
string name;
getline(inFile,name);
cout << name << endl;
}
How I can do some sort of formatting on this data?
it isn't actually writing anything to the file. It is opening the employeesOut.txt file but not writing anything. I'm getting the error
libc++abi.dylib: terminating with uncaught exception of type std::invalid_argument: stoi: no conversion
(lldb)
I believe the error is within my main.cpp, so here that is, I have multiple classes.
#include <iostream>
#include <string>
#include <fstream>
#include "Employee.h"
using namespace std;
bool openFileForReading(ifstream& fin, const string& filename);
[code]....
I wrote a program to compress a file with gzip, which works fine. I also wrote a program to decompress the gzip file, which runs but outputs a blank file.
Code:
main.cpp:
#include "decompress.h"
int main(int argc, const char * argv[]) {
if(argc == 3) {
decompressor(argv[1], argv[2]);
[code].....
I know to read a strings into array and tables.. what is they are mixed up?? strings are just names ( 3 characters) and there are bunch of table.. the max size was set to 60
ex. text file
JES
DAN
JEN
.
.
.
01010101
10010101
RAM
JET
01010010
10100101
.... and so on
should i use a while loop?
I was given an assignment on outputting the number of upper and lower case vowels from a text file. I was provided guidelines, but I'm still very new to arrays. how:
1. The values would be sorted into the array
2. To correctly output the array.
3. What information seems to be missing.
Question1.cpp
This is my text file.
bak kut teh[tab]888.0[tab]989.0
spicy chicken nugget[tab]999.0[tab]978.0
I'm experiencing some problem in trying to scan and put it into an array for the food names (e.g an array for food which consist of bak kut teh and spicy chicken nugget) and another 2 array for the other individual integer into C. However there seem to be some problem with my code.
Is there a difference if I use both tab and space instead of space for all?
Code:
#include<stdio.h>
int main() {
FILE *fp;
char food[100];
char buff[BUFSIZ];
float num;
[Code] ....
I'm having troubles with loading my text file into my array.
Code:
int main(int argc,char* argv[]) {
if(argc!=3) {
printf("
Insufficient arguments
[code]...
I'm also suppose to return the size of the input at the end.
I have this program for class where we just need to show that we can read, write to a text and binary file. We also need to populate an array from both a text and binary file. When the user first runs the program, the user is told that text/binary file does not work for reading because they do not exist. The user is then asked to start inpuyting integers into the console and at the same time creating and appending to a text/binary file. These values are also stored into an array as they are being inputted. Later in the program the array is run through a for loop and displayed to the screen. Displaying the array to the screen works fine here.
My problem is when the user runs the program for a second time. The text file is opened and an fgets is run to populate an array based on the numbers in the text file. That array is then used again for the user input and file writing section of the program. When the array is displayed at the end of the program the numbers do not make sense. Some appear to be correct bu most do not. When I do the similar actions to the binary file there is no problems. The text file is amended properly everytime the user runs the program. userInputText[MAXSIZE]is a char array (MAXSIZE is defined at 100000) and both textCount and textCounter are initialized to zero when the program is at this point.
Here is what the code where I believe the program resides. I have also attached the source file.
Code:
textPointer = fopen("textFile.txt", "r");
if (textPointer) {
while(fgets(userInputText, sizeof(int), textPointer) != NULL){
sscanf(userInputText, "%d", &textCount);
userInputText[textCounter] = textCount;
textCounter += 1;
}
Reading in a maze into a 2D array. The first two reads will give me the dimension of the maze(ex. m x n maze). So in order to create the 2D array i need the first two reads. Then after it is created it will read the rest of the data which are 1s and 0s. I have to create a program that will solve the maze but i cant test my movement code if i cant read in the data first. the entire program compiles but to test if i read the file i have a function to print it. But it says "There are: 0 rows and 0 columns " so it didn't read anything since rCount and cCount are initialized to 0. and basically the maze has nothing in it.
Code:
#include <iostream>
#include <fstream>
#include <stack>
#include <cstdlib>
#include "position.h"
[Code] .....
I have to take a text file with 62 8 25 7 90 82 22 46 15 54 in it. The array has to read from the file. I cannot figure out how to do it. This is what I have.
Code:
#include <iostream>
#include <string>
#include <iomanip>
#include <fstream>
#include <cmath>
using namespace std;
ifstream FileIn;
ofstream FileOut;
[Code] ....
In a program, I have a text file (called MyDictionary.txt) which has thousands of words in alphabetical order. I need to make a C program that reads in this text file and then makes an array called char Words[# of total words in the text file][length of longest word].
Aarhus
Aaron
Ababa
aback
abaft
abandon
I am at a loss with an assignment. I am supposed to read from a text file, with an input of something like this: alphaproleone,stroke,42 1 and Store it into an array of structures and then output it with each word/number starting on a new line. My current code prints out only the first part, and the "a" in alphaproleone is the actual number "21".
#include <iostream>
#include <string>
#include<fstream>
#include<iomanip>
using namespace std;
typedef struct drugtype {
string name, target;
int effectiveness, toxicity;
[Code]...
how to save text stored in an array to a txt file. can sum1 how to save the text in an array to a file/txt file......
View 7 Replies View RelatedSo I am working on a FUSE filesystem and I currently have the need to load the contents of a text file into an array.
My array initialization looks like: char array[max_entries][PATH_MAX] = {NULL}
The reason I want to pass it by reference is that I want my function to return two values essentially. One a specific char* and the other an array like I initialized. My function proto type looks like:
char* load_meta(char* list[max_entries][PATH_MAX], char* path, int mode);
How I'm trying to call the function:
someChar = load_meta(&array, path_name, 1);
Within the function I try to edit the array by deferenceing it once, like this:
strcpy(*list[i], file_entry); // This seg faults
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.
I have a program that saves all information temporarily into memory (into the array), however, I need a permanent save solution. I have the full program working correctly, formatted perfectly, but it's missing the file array to file output.
Essentially, whenever I'm presented with the menu I'll be able to add entries, search by last name, show the entire list, and exit and save. Whenever I select option 4 the program should save to a file "address_book.txt". Whenever I reload the program, it should load from "address_book.txt" and populate the array with the preexisting data.
My question is focused on how and where I should implement the file output. What I have thus far:
#include <iostream>
#include <string.h> //Required to use string compare
#include <fstream> //Eventually used to store array into file
using namespace std;
class AddBook{
[Code] ....
I have a project which is about linked lists in the order of: a Story is made of Paragraphs which is made of Sentences which is made of Words. We must treat Words specifically as character arrays, not strings. So I need to read in a story from a text file and make Words by finding the first whitespace/punctuation(everything before the whitespace up until the whitespace or punctuation is the Word), all the Words up to the punctuation are a Sentence (Sentence is a linked list of Words), Paragraph is all the Sentences up until an empty line, and a Story is all the Paragraphs. So I know doing this will let me take a line and put it into a character array:
char charArray[25]; //we are allowed to assume a word won't be longer than 25 characters
int i = 0;
ifstream myFile(fileName.c_str());
if(myFile.is_open()){
[Code].....
I suppose I could look at charArray[i] and if it is ws or punctuation then make the Word = charArray[i-1], but is there an if statement I could do that would prevent the ws or punctuation from being read into charArray in the first place? Because a problem I see with the charArray[i-1] method already is that "This is a story." would get put into the array as Thisisastory. and thus I'd be unable to break up at a space.
So to summarize: I want to read in a text file character by character into a char array, which I can set to length 25 due to context of the project. I want to read in each character and at a whitespace or punctuation, I want to take everything already in charArray and feed that into a Word object constructor (the next Word gets linked to the previous Word, and at a punctuation all the Words linked together become one Sentence, and all the Sentences linked before an empty line become a Paragraph, etc). So how can I get charArray to be only characters in a word, then after the word being read-in ends, charArray resets to empty, and then is populated by the next word and so on.
I have to count the letters from a text file into an array so the first spot is the number of A's second spot number of B's and so on then take the array and sort it in decending order how could i do this without loosing track of where the numbers go so if there are more b's than a's they switch but how will i know where each letter has moved in the array after it has been sorted?
View 1 Replies View RelatedI am currently working on a project that requires me to "load the data in the file into array at the beginning of the program."
I have a text file with data, and I need to populate an array with the information. From then on, I am supposed to be able to add, display, and search that array. However, I can't figure out how to add the data from the file into an array. I was trying to find out how to search the text file itself. So it threw me off balance and I've been staring so long at the screen I can't really focus.