How to add a different class each time?

Question

Programming

Hello.
I have multiple classes Box, Box1, Box2, Box3 ... Box10.
I want to add these classes to the stage randomly using a loop.

for(var i = 0; i < col; i++){
  generator = Math.floor(Math.random()*10);
  box[i]=new Box+generator();
  addChild(box[i]);
}

this design does not work. How can this be implemented?
Thank you.

Answer 1

For example, make the CreateInstance(generator) method
And inside it, make a switch case returning objects of various types.