I'm trying to get this program to loop the number of times I get it to input. The program compiles alright, and it does loop when I tell it too, but how do I output the grades of the multiple students?
#include <fstream>
#include <iostream>
#include <iomanip>
#include <string>
#include <cstdlib>
int weighted1 = 0;
int weighted2 = 0;
[Code] .....
Here's the problem I want to intialise different classes based on user input. I've tried using an IF statement but the scope of an if statement would mean the rest main program wouldn't be able to see it.
View 12 Replies View RelatedI have a small loop that gets the user input, as well as acts as input validation to make sure he or she doesn't enter a value that is not within the specified range.
The user is supposed to enter a month number. E.g. if he or she chooses February, then enter 2, or December, 12.
It works correctly if they type a number that is not in the range, but goes into an infinite loop if, say, they type a string such as "month".
Code:
int main() {
// Variable Declaration(s)/Initialization(s)
int month=0;
// Get input
cout<<"Enter a month";
cin>>month;
[Code] ....
How could I go about revising this?
Some of my loop is not working. How messed up is this code.. Commented non working code
// ADIT.cpp : Defines the entry point for the console application.
#include "stdafx.h"
#include "windows.h"
[Code]....
struct stu_dat //outside main function
{
int rollno;
char name[45],
float average;
[Code] ....
No compilation problem.when executing prompt waits for inputting rollno, but, as soon as i enter a char string it keeps looping displaying the "want to enter more data?".i cant understand what is going on,as there is no compilation problem and runs good till i input the name.
In short, I'm trying to make a CLI for a project that can take multiple user inputs add I don't exactly know what I'm doing. I'm able to get cin to take one user input, but that's all I'm sure about.
View 8 Replies View RelatedI'm not sure what the program's purpose is?
1) Ask the user to enter a sentence. Until you reach the end of the sentence, test each character to count the number of spaces and letters.
2) For every space counted, print "SPACE", then print one "!" for every letter counted on an indented line underneath the "SPACE".
Your test sentence to use is: "The potash feldspars are important rock-forming minerals in plutonic, volcanic, and metamorphic rocks."
HINT: You do not need any strings. You need one while loop and two for loops. <cctype>
The purpose of this program is to unscramble the user's input. for example if the user entered 'ftooabll' the program would print 'football'. find the error that I am making....
Now, this only works for strings that are contained in the file wordlist. That being said, I would like this to repeat this search multiple times. Currently, the process is being repeated 7 times, but it only works on the first iteration. The code and sample input/output is below.
Code:
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#define NUMLOOP 6
void sort_string(char*);
[Code] ....
Sample input/output: (note: all data has been verified to be in the wordlist)
Enter string:
4132dcba
abcd1234
Enter string:
4132dcba
Enter string:
4132dcba
Enter string:
4132dcba
Enter string:
4132dcba
Enter string:
4132dcba
Enter string:
4132dcba
So I have to write a step in my program that reads in up to 8 variables. Simple, but if the User submits an invalid value, I have to give an error message and ask him to re-enter the value until he enters a valid number. Here's my while loop that works perfectly:
Code:
while (true) {
printf("
Enter the mark given by Judge 1: ");
scanf("%f", &m1);
if ((m1 >= 0.0) && (m1 <= 10.0)) {
break;
}
[code]...
I'm not sure what to write in the else statement to make the programme understand that it has to repeat the exact same step but without adding 1 to index. Is this possible or do I have to suck it up and just use while loops instead? I'm very new to programming.
For example, to calculate GPA, we add all the grade point of a course and divide by the number of courses we are taking. How do I create a program in such a way that when the user enters grade point for two courses, it will add the grade points for the two course and divide by 2. And if another user enters grade points for six courses, it adds the grade points and divides by 6.
View 2 Replies View RelatedI'm trying to create a program that will take input from a user and calculate it in a do-while loop. The program does the calculation but the answer is wrong. The loop also doesn't work. The purpose of the program is to see how much an item will cost after a discount is taken off and tax is added.
#include <iostream>
#include <cmath>
using namespace std;
double original_cost;
double discount;
double tax;
double total;
char answer;
[Code]...
I am stuck on an exercise where i am supposed to use a loop to take user input and keep a running sum until the user enters a 0. the code i have so far is:
#include <iostream>
int main() {
using namespace std;
int num;
int total = 0;
int x;
[Code] ....
The full text of the error message is: error c2678:binary'>>':no operator found which takes a left-hand operand of type 'std::istream' . and one more thing i was wondering, is there a difference between c++ and visual c++?
Below is a program that generates random Addition for Subtraction problems depending on the user's choice. The user is prompted to input an answer and then it keeps your score. If you want to quit you just press zero.
Code:
#include <iostream>
#include <stdio.h>
#include <stdlib.h>
#include <time.h>
#include <iomanip>
#include <string>
using namespace std;
int menu();
bool addition(int &reward); // function to return truth values
[Code] ....
I am trying to simplify my code by creating a function which takes an input then checks whether it is "y" or "n" then outputs either 1 or 0 depending on the input. So far this is what I have
int Choice(string choice) {
while(choice.compare("n") != 0 && choice.compare("N") != 0 && choice.compare("y") != 0 && choice.compare("Y") != 0){
cout << "Please enter a valid input either [y/n] : " << endl;
cin.clear(); cin.ignore(); cin >> choice;
[Code] ...
And I call it in the program using
cout << "Do you wish to change the hubble type of any galaxies? [y/n]" << endl;
cin >> choice;
while(Choice(choice) == 1){
....
cout << "Do you wish to change the hubble type of another galaxy? [y/n]" << endl;
cin << choice;
}
It compiles fine but displays some bizarre behaviour, I need to end the line twice in order for the program to continue and sometimes it just stops working (doesn't exit just appears to be stuck in a loop).
I'm suppose to write a program using (for loop) that asks the user to enter any amount of numbers, so that it can display the smallest and largest. My program successfully finds the largest, but it is always displaying 0 for the smallest, I think Im doing something wrong with the internalization but I dont know what to change it to.
This is what I have ....
#include <iostream>
using namespace std;
int main() {
int amount;
int count;
int number = 0;
int smallest = 0;
int largest = 0;
cout << "Enter total numbers to process: ";
[Code] ....
I'm trying to write a C++ program that will allow a user to input a number from the keyboard. Then using a loop, that will perform 10 times, multiply the entered number by the loop counter. Print out the loop counter, the entered number and the product of the loop counter and the entered number. A one-time heading should be displayed before information is printed.
This kinda of what I have so far:
#include <iosteam>
using namespace std;
int main () {
Start
Declare: numScores, sum, score, avg, SENTINEL = 200
numScores = 0
[Code] ....
All the programs I have tried to make are not working?
I am making program that allows the user to determine how big the array size will be and then asks the user to make up numbers to fill the array. Every time run the program on Dev C++ it says "program has stopped working"
Heres My Code:
//Assignment 19 Program 2
#include <iostream>
using namespace std;
int main()
[Code].....
Still working on my first homegrown C program design . The function basically allows the user to enter a list of classes and grades and saves the list to a file to be used later in the file. The function compiles and runs through without error except for the fact that it always prints the last user entry to the *profilep file twice. Just as a note, the scanchar function is one I made to scan in one character and an end of line character to throw away the end of line char before I learned about %*c about 30 minutes ago...
Also I haven't much bothered to strengthen the function against crazy user input but I have heard using fgets and sscanf in conjunction can replace scanf and protect against weird user input. How to apply this within the program.
Code:
// creates a new profile and prints it to the profile file.
void newprof(FILE* profilep, const char *allclasses[ABBR_SIZE]){
int c, checker, counter;
int i, a;
char prof[MAX_PROF][ABBR_SIZE];
char grades[MAX_PROF][3];
[Code] .....
This program is meant as practice. However, it is not working as intended. The for loop is meant to take the argument from the user and use it as the amount of times to loop. Instead it simply outputting: . It is supposed to output i++ but does not.
Here is the code:
main.cpp:
#include <iostream>
#include <stdlib.h>
int main(int main, char* arg[], char* arg2[]) {
int iterator = atoi(arg2[0]);
std::string z = "-c";
[Code] ....
This is an example from C++ Primer on while loops shortened for simplicity:
int main() {
int value = 0;
while(cin >> value) cout << value;
return 0;
}
When I compile and run the above code the program keeps asking for input after I input nothing but pressing ENTER no matter how many times. The only way I can get it to stop asking for input is to input something other than an int such as a char or string. Program executes as intended after that. I have googled this issue and read all seemingly relevant results and nothing seems to pertain to my exact problem. I think it may have something to do with my computer's own settings or something and am baffled as to what it may be.
I'm making a program for a MMO I play. It calculates the cash and resources needed to build certain 'modules'. I'm having trouble to do something very simple : make a loop until the user asks to break the loop. Here is what the interface looks like :
What module do you want to install?
(Examples: 'Avenger' or 'VLLT')
dd // I input this
DD. COST each : 60,000 cr.
How many do you want? (Modules left:15)
(NOTE : You may enter a negative number if you made a mistake)
3 // I input this
Current Total Module Price : 180000 cr
+6 droids
[Code] ....
The bigger code box below is a part of the code I made. What I deleted is uninteresting, it's just the same thing again : other resources, other 'modules'...
#include <iostream>
#include <string>
#include <algorithm>
using namespace std;
int main() {
struct resources// Defines the amount of resources and their price
[Code] ....
Write a program that computes a running sum of inputs from the user, terminating when the user gives an input value of 0
Using a while loop - no problem. Its only when I try to code it with a for loop that the program doesn't terminate with a 0 input. It terminates with a -1 input!!
while loop
#include <iostream>
using namespace std;
int main() {
float input=1;
float sum = 0;
[Code] ....
Keep track of the sum of values entered (as well as the smallest and the largest) and the number of values entered. When the loop ends, print the smallest, the largest, the number of values,and the sum of values. Note that to keep the sum, you have to decide on a unit to use for that sum; use cm.
View 9 Replies View Relatedhow I want my sprite movement to work: if my sprite is faced upwards and i press W, it will move up. If my sprite is faced to the right and i press W, it will go right. etc. // It doesn't work like that right now and how to do it.The sprite's rotation works fine.
if(sf::Keyboard::isKeyPressed(sf::Keyboard::Q)) {
playerSprite.rotate(-0.08 * dt);
} else if(sf::Keyboard::isKeyPressed(sf::Keyboard::E)) {
playerSprite.rotate(0.08 * dt);
[code]....
My question is how do I move the character depending on the rotation?
Also, you might see the "if(havePlayersCollided == false) {playerSprite.move(yadiyada)}" . yes i dont need the haveplayerscollided function because it doesnt work the way I want it to. I might make a thread for it in the future, but right now I need to get the rotation movement fixed before I move onto the collision detection between players.
I have a list of calculated fields, these fields reference other fields in their calculations. I need to create these fields beforehand as they will not exist.
I was wondering what would be the best approach for this Example List
Field1 has Field2 in the calculation
Field2 has Field4 in the calculation
Field3 has Field1 in the calculation
Field4
I'm not sure on how to approach this.
Create list in this order
Field4
Field2
Field1
Field3
// PROBLEM - Use INPUT VALIDATION so number entered is positive. I can't get it to work
#include <iostream>
#include <iomanip>
using namespace std;
int main(int argc, const char * argv[]) {
// SUM OF NUMBERS
// Enter a positive integer
[Code] ....