Programming Forums > Application Development > C++

lilmul123 · May 26th, 2006, 8:43 AM

How do I ask the user to input some data, and put it into different parts of an array?
Today, I have an assignment that requires me to have the user enter a digit, then ask if they want to do it again, and then find the average of the numbers entered. I have to do this using an array of up to 15 numbers.

Ooble · May 26th, 2006, 8:52 AM

Use a loop?

'Cos it's an assignment, I'm not going to give you the code. I'll explain what I'd do though: loop through fifteen times, asking the user for input. If at any point the user decides he doesn't want to continue, simply break out of the loop.

To put data in a specific part of an array:

(Toggle Plain Text)

for (int i = 0; i < ARRAY_SIZE; i++)
{
    cin >> my_array[i];
}

lilmul123 · May 26th, 2006, 9:09 AM

here's what I have thus far. the problem im having now is with the do-while loop:

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#include "conio.h"
#include "stdio.h"
#include "iostream.h"

int main()
{
int userinput;
int i;
int number[15];
char choice;
clrscr();
do{
for ( i = 0; i < 15; i++)
{
cout << "Please enter a number:\n";
cin >> userinput;
number[i]=userinput;
}
{
cout << "Do you want to enter another number?";
cin >> choice;
}
while(choice=='y');
getch();
}

nnxion · May 26th, 2006, 9:15 AM

Brace mismatch, helps when you indent like:

(Toggle Plain Text)

#include <iostream>

using namespace std;

int main()
{
	int userinput, number[15];
	char choice;

	do
	{
		for (int i = 0; i < 15; i++)
		{
			cout << "Please enter a number:\n";
			cin >> userinput;
			number[i] = userinput;
		}
		cout << "Do you want to enter another number?";
		cin >> choice;
	}
	while(choice == 'y');

	cin.get();
}

I also removed the deprecated headers.

lilmul123 · May 26th, 2006, 9:24 AM

thanks for the help! i got it

DaWei · May 26th, 2006, 9:29 AM

Just some additional blather, along the lines of one of Ruben's discoveries. You should probably, while a novice, line your braces up. It's a stylistic issue, true, but a visual aid helps. You should probably use them even for single-line blocks for a while. You should definitely indent so the nesting is obvious. An editor that can indicate matching braces is nice, also.

May 26th, 2006, 8:43 AM	#1
lilmul123 Newbie Join Date: Mar 2006 Posts: 18 Rep Power: 0	input data from user into array How do I ask the user to input some data, and put it into different parts of an array? Today, I have an assignment that requires me to have the user enter a digit, then ask if they want to do it again, and then find the average of the numbers entered. I have to do this using an array of up to 15 numbers.

May 26th, 2006, 8:52 AM	#2
Ooble I eat cake for breakfast. Join Date: Jul 2004 Location: In my box. Posts: 4,434 Rep Power: 9	Use a loop? 'Cos it's an assignment, I'm not going to give you the code. I'll explain what I'd do though: loop through fifteen times, asking the user for input. If at any point the user decides he doesn't want to continue, simply break out of the loop. To put data in a specific part of an array: (Toggle Plain Text) for (int i = 0; i < ARRAY_SIZE; i++) { cin >> my_array[i]; } for (int i = 0; i < ARRAY_SIZE; i++) { cin >> my_array[i]; } __________________ Me :: You :: Them

May 26th, 2006, 9:09 AM	#3
lilmul123 Newbie Join Date: Mar 2006 Posts: 18 Rep Power: 0	here's what I have thus far. the problem im having now is with the do-while loop: (Toggle Plain Text) #include "conio.h" #include "stdio.h" #include "iostream.h" int main() { int userinput; int i; int number[15]; char choice; clrscr(); do{ for ( i = 0; i < 15; i++) { cout << "Please enter a number:\n"; cin >> userinput; number[i]=userinput; } { cout << "Do you want to enter another number?"; cin >> choice; } while(choice=='y'); getch(); } #include "conio.h" #include "stdio.h" #include "iostream.h" int main() { int userinput; int i; int number[15]; char choice; clrscr(); do{ for ( i = 0; i < 15; i++) { cout << "Please enter a number:\n"; cin >> userinput; number[i]=userinput; } { cout << "Do you want to enter another number?"; cin >> choice; } while(choice=='y'); getch(); }

May 26th, 2006, 9:15 AM	#4
nnxion Programming Guru Join Date: Jun 2005 Location: elemental plane Posts: 1,429 Rep Power: 5	Brace mismatch, helps when you indent like: (Toggle Plain Text) #include <iostream> using namespace std; int main() { int userinput, number[15]; char choice; do { for (int i = 0; i < 15; i++) { cout << "Please enter a number:\n"; cin >> userinput; number[i] = userinput; } cout << "Do you want to enter another number?"; cin >> choice; } while(choice == 'y'); cin.get(); } #include <iostream> using namespace std; int main() { int userinput, number[15]; char choice; do { for (int i = 0; i < 15; i++) { cout << "Please enter a number:\n"; cin >> userinput; number[i] = userinput; } cout << "Do you want to enter another number?"; cin >> choice; } while(choice == 'y'); cin.get(); } I also removed the deprecated headers. __________________ "Employ your time in improving yourself by other men's writings, so that you shall gain easily what others have labored hard for." -- Socrates

May 26th, 2006, 9:29 AM	#6
DaWei Resident Grouch Join Date: Jun 2005 Posts: 6,453 Rep Power: 10	Just some additional blather, along the lines of one of Ruben's discoveries. You should probably, while a novice, line your braces up. It's a stylistic issue, true, but a visual aid helps. You should probably use them even for single-line blocks for a while. You should definitely indent so the nesting is obvious. An editor that can indicate matching braces is nice, also. __________________ Abstraction doesn't make it impossible to write bad code; it makes it possible to write superior code. Contributor's Corner: Grumpy on C++ Exceptions DaWei on Pointers

May 26th, 2006, 9:24 AM	#5
lilmul123 Newbie Join Date: Mar 2006 Posts: 18 Rep Power: 0	thanks for the help! i got it

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Programming Forums > Application Development > C++

input data from user into array