Thread: Creating a user defined number of variables

Hi, is there any way I can make a user-defined number of variables and then call on them with the variable name with a number at the end or beginning or something? (eg. How many names do you want to enter?: 30) and then call them with something like this (<< name1) and then (<< name2) or (<< 1name) and then << 2name or something similar.
Thank you,

You'll be wanting arrays.

Ok, but I want to have the user store the variables not just pull them out of a list. Is there a way to do that with arrays or something else?

What do you mean the user store the variables? Liek the user is given a variable name in which the data is stored?

No, let the user (store, input, type in, enter, fill in, define, tell the computer what it is etc...) the variable.

Originally Posted by Daved

I would use a vector before using an array. Either way, you will have one variable (the vector or array) and use indexing to access each entry (e.g. name[0], name[1], etc).

Usually I'd agree with you, but the concept of arrays is basic, useful knowledge that the OP is apparently lacking. In my opinion, it's better to understand a concept before trying to use an abstraction of the concept.

is there any way I can use it like this though?:

Code:

int numofvar, counter;
           counter = 1;
           cout  << "How many variables do you want to enter?: ";
           cin << numofvar;
           while (counter <= numofvar)
           {
            char variable + counter[4];//how can i make this variable keep changing names until the loop is finished?
           cout << "Enter variable " << counter << ": ";
           cin variable[counter];//is there any way i can do that?
           cout << "Variable #" << counter " is " << variable << ".";
           counter++;
           }

Obiously I just thought of that as an example so please don't be critical about anything basic missing. But is there any way to do that?

Here is a very simple program illustrating using arrays.

Code:

int main()
{
	int array[100];
	int numEntries;
	do
	{
		cout << "How many numbers would you like to enter? (Max: 100)"
			<< endl;
		cin >> numEntries;
	} while (numEntries > 100);

	for(int index = 0; index < numEntries; index++)
	{
		cout << "Enter a number: ";
		cin >> array[index];
	}

	cout << "You entered: ";
	for(int index = 0; index < numEntries; index++)
		cout << array[index];
}

[edit]You'll really want to read the tutorial on arrays.

Thanks, I'll try that.