I am trying to make a program that asks for password when you try to open a file.
I tried with that, obviously without success...
#include <iostream>
#include <fstream>
#include <string>
#include <windows.h>
using namespace std;
int main () {
ifstream file("test.txt");
string password;
[Code] .....
I'm trying to write a program where it asks the user for a file name.
If that file exists, the it will open the file and then read it and print the information in the file.
However, if the user enters a file name that does not exist, the user will have 2 more tries (for a total of 3 tries) to get the correct name of the file.
I am close to getting it. What I have now just won't go through the loop to validate if the input matches an existing file. It goes straight to the printing of what is in the file. If the file doesn't exist, it prints: "Found your file..Opening..processing...Total keys found = 0."
So, my question, what am I doing wrong that it won't go through the loop properly?
#include<iostream>
#include<iomanip>
#include<fstream>
#include<string>
using namespace std;
int main() {
bool fileFound = false;
[code]....
I am trying to make a simple login program that reads username and password from a text file.
In my text file I have:
name1;pass1
name2;pass2
name3;pass3
name4;pass4
name5;pass5
Everything is working okay with name1 and pass1, but if I try to log in with different credentials, for example name2 and pass2 it says "invalid details"
Here is my code:
string user, chuser;
string pass, chpass;
string los;
ifstream loginData("logindata.txt");
cout << "Please type in your username:" << endl;
getline(cin, user);
[code].....
I am wondering how can i open a .exe file with my c++ program. What is the source code?
View 6 Replies View RelatedI am fairly new to programming and I am writing a small POS system which in the background creates a receipt. I guess the relevant code would be this:
#include <stdio.h>
int main() {
FILE *receipt;
receipt = fopen("receipt.txt", "w");
fprintf(receipt, "Coffee Bar
[Code] ....
Of course the last bit wont be running for you, since the variables are missing. My question now is, that I like to open this file in a text editor. The file should be opened with a command withing the code. Is that possible at all? As you might can tell the receipt should pop up after the program ran and the user should be able to print it afterwards.
So I am trying to write a program that asks the user for a name. If the user enter the right name the program ends but if the user were to enter the wrong name the program would enter a loop prompting the user to re-enter the name. However I am not able to get the program to work!
View 9 Replies View RelatedSo I'm trying to make a program that asks the user for a number and then prints a statement the same number of times the user entered. 3 different statements, using the 3 loops (for, while, and do while). I made the program but for some reason the statement from the do while loop goes off infinitely.
MY CODE:
The error:
Write a C++ program that asks the user to enter an even number only. If the user enters an odd number the program should use input validation to ask the user to enter another number.
- The user can enter as many numbers as he wants
- The program should also keep a count of how many numbers entered and display how many odd and even numbers entered.
I'm using Visual Studio Express 2013 to create a Windows program that will upgrade my micro-controller firmware. I have a .exe program to upgrade it. What I normally do is I drag and drop a .txt file on the .exe program and it will be done. I want to write a program that will do the exact same thing. Where when I click on a button, it will run the .exe program with the .txt file.
What I got so far is just run the .exe program when i press the button. I do not know how to write a code to let the .exe start with the .txt file. Here's what I got so far.
Process.Start(@"C:UsersJayDocumentsVisual Studio 2013ProjectsWindowsFormsApplication1BSL_FilesBSL ScripterBSL_Scripter.exe");
That line only manage to open up my .exe file. How do I make it run with the .txt at this location?
C:UsersJayDesktopBSL_FilesBSLSCRIPT.txt
Write a program that asks the user to type 10 integers of an array. The program will then display either "the array is growing", "the array is decreasing", "the array is constant", or "the array is growing and decreasing."
(Hint: compare consecutive numbers in array and check whether it is increasing or not or constant) I wrote the program very well, but do I have to use "bool" like in c++ ? I haven't known how to code in c++ yet.So, I don't want to use "bool" in C.
I also wrote code about it but it looks like backslash and one,two,three,four,five how can I do it like this ?
Write a program that asks the user to prompt an Integer number and then test whether it is Palindrome Numbers or not.
The following are Palindrome numbers:
1.22
2.333
3.67876
4.44444
5.123454321
im writing a program that asks the user to input a number 1-10 and will transform it into the roman numeral of that number but it seems that its not after the user inouts the number nothing will output
#include <iostream>
#include<iomanip>
using namespace std;
[Code]....
Title is self-explanatory.
Code:
#include <iostream>
using namespace std;
int main ( ) {
float number;
float sum;
float divi;
while(number != -1) {
[Code] .....
Write a program that asks the user to enter a student’s grades on four exams. The program should display the four grades and the average of the four grades,rounded to the nearest tenth. To add the grades, use a variable called total_grade, which you should initialize to zero.As the program prompts for and obtains each grade, add the grade to total_grade using the += operator.
View 3 Replies View RelatedI am writing a program that deals with 2d arrays. The program inputs the number of rows and columns and asks for the entries. When the program run and compiles it works perfectly until it outputs then it gives me a warning.
Here is my code:
#include <iostream>
#include <cstdlib>
using namespace std;
int main()
{
int row1=0,col1=0,i,j;
//int a[row1][col1];
int** a= new int*[row1];
[Code]...
I am learning how to do this before I can move on so it can read a text file of numbers.
Also I am having problems with ////delete [] a[];///// I took it out because it made my code compile and run but when I add it in, it gives me an error:
matrixtesting.cpp|56|error: expected primary-expression before ']' token|
I know this expression is suppose to deallocate the array.
C programming: I want to creat a program that asks the user to input the integer lengths of three sides of a triangle, and if so whether the triangle is a right-angled, acute or obtuse one. i am having some doubts about the if, else if statements. I never seem to know how and in what order to use them.
Code:
#include <stdio.h>
#include <stdlib.h>
#include <math.h>
int main(int argc, char *argv[]){
int SideA;
int SideB;
int SideC;
}
[code]....
So I need to make a program that recieves a 10 letter only password, then once the password is entered, it starts off as AAAAAAAAAA...AAAAAAAAAB...AAAAAAAAAC...etc, Until it gets the correct password, which it then stops. This is for a science fair project on cyber security not for malicious purposes ...
View 2 Replies View RelatedI am trying to build a program that takes a user password (6+ characters, One uppercase, one lower case, and one number), and checks for errors. The idea is that if the user is doing something wrong (say, forgetting to use an uppercase letter), the program will tell them what the error is, and prompt them to enter the program again.
I get through the building process without errors, but whenever I run the program, I get this error: [URL] ....
Here is my code:
#include <iostream>
#include <cctype>
using namespace std;
bool checkPass(char [], int); //Password Checking Function
char convert(string);
[Code] ....
According to the box, the error appears on line 56 and 68.
add more code given bellow program that means (( you can input a password and the output checking the password is valid or not and also the password is hard or weak)) the program,s output show....the given password is too strong or strong or weak and also check the password is valid
View 2 Replies View RelatedCode:
#include<iostream.h>
#include<conio.h>
#include<string.h>
void main() {
clrscr();
int i=0,flag=1;
cout<<"Enter the password.";
[Code] ....
When I input the password, the Backspace and the Enter keys are not working as they should. Also, I want to know if I can press enter only once to input the password, not twice.
Compiler is Turbo C++ 3.0 on Windows 7.
I am new to C++ and am stuck on a program. I've got to create a password check program that makes sure the password rules are followed. Below is the code and the rules i have typed in the comments at the beginning of the program. I have to use loops and cant use arrays for this.
#include <iostream>
#include <string>
#include <cctype>
using namespace std;
int main() {
//Prompt user to entered a password to be tested
cout << "Password must be at least 8 characters long." << endl;
[Code] .....
I tried to build a basic username-password verification program; I already have 2 text documents, usr.txt and pass.txt in which username and password are stored. Then have written this program to check the username and password, but every time it says Access Denied.
Here's what I have written:
#include<stdio.h>
#include<conio.h>
void main()
[Code].....
I am trying to read a "password" from a file, the file only contains the password... Here is my code:
int i=0, ch;
char password[25];
FILE *fp = fopen("C:UsersOlintoDocumentsNetBeansProjects est.txt", "r");
if (fp == NULL)
printf("Erro ao Abrir");
[Code] ....
puts(password); When I read the string password, it outputs -> abcd123"
I don't know where it takes the (") because the password on the file is abcd123...
I'm trying to develop a deeper knowledge of how loops work (and what better way todo that than a dynamic password guesser). My main problem lies with the conflict between data types, as I try to point to a char at a specific index position of the password guess.
See in my code (at line 57):
Code:
#include <iostream>
#include <iterator>
#include <algorithm>
#include <string>
#include <cstdlib>
#include <iomanip>
using namespace std;
string AlphaNum("abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789");//62 possible characters
int size = AlphaNum.length();//should be 62
[Code] ....
This is annoying, because strings are arrays of characters themselves.
I have to write a program that will ask you to put in a number between 0 and 9 and multiply it by pi. If the number put in is between 0 and 9 then pi is multiplied but if it isnt between 0 or 9, it will say the number is not between 0 and 9 and asks you to put it in again and will repeat until a number between 0 and 9 is put in.
I have got the program working to the extent that it the number is between 0 and 9 it will multiply it by pi but if its not between 0 and 9 it will say the number is not between 0 and 9 and ask to put in a new number.
I can't work out how to get the program to repeat itself if the number entered isnt between 0 and 9.
I have enclosed the code below .....
I am trying to make a program that asks for password when you try to open a file. I tried with that, obviously without success .
#include <iostream>
#include <fstream>
#include <string>
#include <windows.h>
using namespace std;
int main () {
ifstream file("test.txt");
string password;
[Code] ....