New to C++ Stuck on Arrays. Help please!

I am learning C++ and I am currently learning Arrays.
However, I am stuck :(
I type the following code:

Code:

---

#include <iostream>
using namespace std;

int main()
{
        int examplearray[100];
        cout << examplearray[2] << "\n";
        system("pause");
        return 0;
}

---

Shouldn't this just display the integer 2?

The program compiles, however i get this message:
Run-Time Check Failure #3 - The variable 'examplearray' is being used without being initialized.
I press continue and the program displays:
-858993460
Press any key to continue...

Quote:

---

Originally Posted by PersianStyle

I am learning C++ and I am currently learning Arrays.
However, I am stuck :(
I type the following code:

Code:

---

#include <iostream>
using namespace std;

int main()
{
        int examplearray[100];
        cout << examplearray[2] << "\n";
        system("pause");
        return 0;
}

---

Shouldn't this just display the integer 2?

The program compiles, however i get this message:
Run-Time Check Failure #3 - The variable 'examplearray' is being used without being initialized.
I press continue and the program displays:
-858993460
Press any key to continue...

---

examplearray[2] will return element 3 of examplearray (0-99)

alas you have not set it to any value yet, thus it fails irl.

What do you think this says?

Code:

---

int examplearray[100];

---

Quote:

---

Shouldn't this just display the integer 2?

The program compiles, however i get this message:
Run-Time Check Failure #3 - The variable 'examplearray' is being used without being initialized.
I press continue and the program displays:
-858993460
Press any key to continue...

---

[2] is not a value in the array, it is an index.
If you want it to be two you will have to write
examplearray[2] = 2;

Arrays are a block of memory which hold a certain amount of data of a specific type. The general syntax works like this -

type name[number of members];

name[index] = x;

or

x = name[index];

Yes, OK i figured it out on my own, I have to set the values of the array. So I fixed my code.

Code:

---

#include <iostream>
using namespace std;

int main()
{
        int examplearray[100];
        int t;
        for(t=0; t<100; t++)
        {
                examplearray[t] = t;
        }
        cout << examplearray[2];
        system("pause");
        return 0;
}

---

Quote:

---

Originally Posted by PersianStyle

Yes, OK i figured it out on my own, I have to set the values of the array. So I fixed my code.

Code:

---

#include <iostream>
using namespace std;

int main()
{
        int examplearray[100];
        int t;
        for(t=0; t<100; t++)
        {
                examplearray[t] = t;
        }
        cout << examplearray[2];
        system("pause");
        return 0;
}

---

---

Be patient and don't start a thread the first thing you do