Array of Objects.

How would I create an array of objects (x number of Electrons around a Nucleus)? I have this code thus far:

Code:

---

class Nucleus
{

        Electron * eTron;

        // Co-ordinates of the WHOLE atom in 3D space
        float x, y, z;

        Nucleus(int e)
        {
                eTron = new Electron [e];
        }

};

class Electron
{
        // Location around Nucleus
        float x, y, x;

        Electron()
        {

        }

};

---

Is this correct or am I missing something?

Well the Electron class would need to be declared before the Necleus class but yes that seems like a correct outline.

>Is this correct or am I missing something?
Experimentation is the spice of programming. Learn to savor its sweet bouquet, to luxuriate in its sharp yet sweet flavor. Only then can you lose yourself in the ecstasy that is programming.

:D

If Electron had a constructor that neede values to be passed, how would I call it using the New keyword:

Code:

---


Electron(int orbit, int x, int y, int z)
{
......
}



Electron *eTron = new Electron(parameters???)[e];

---

??

I believe that you can only use a default constructor with new. So if Electron needed certain information passed into it you would have to use default parameters. But I may be wrong.

>how would I call it using the New keyword
You don't. Not that way at least. If you want to use anything but the default constructor then you need to do something different, such as using an array of pointers and then allocating memory in a loop to each object, or using the object's assignment operator to give it a new object using the constructor:

Code:

---

eTron = new Electron [e];
for ( int i = 0; i < e; i++ )
  eTron[i] = Electron ( /* parameters */ );

---

have electron take in a const nucleus, so i t knows which one it belongs to. or if you only using one nucleus in the program, have electrons class use static variable to count how many electrons created

>Experimentation is the spice of programming. Learn to savor its sweet bouquet, to luxuriate in its sharp yet sweet flavor. Only then can you lose yourself in the ecstasy that is programming

Wow prelude! My new favorite quote.

[edit]
You make programming sound better then chocolate.

Quote:

---

You make programming sound better then chocolate.

---

Now you're stepping on very thin ice indeed ;)

>You make programming sound better then chocolate.
Nothing is better than chocolate. :)

i think an array of preludes would be better than chocolate ;)

Well I got this code kinda working. I get a distructor call after I have the pointer pointing to a new electron. LoadElectron Gets errors when it tries to access variables inside the electron class because it doesnt exist anymore. Am I doing something wrong?

Code:

---

class Atom
{
  Electron *eTron;

  Arom()
  {

    for (int x = 0; x < e; x++)
    {
          // Create Electron Orbit
          eTron[x] = Electron();
 
    //////////////////////// DISTRUCTOR CALL ////////////////////////   

          eTron[x].LoadElectron(x);
    }
  }
};

---

Did you allocate eTron using new? And you need to define an assignment operator for the electron class to do that...