Question

How should I initialize an array of classes with an empty constructor?

I can see that if I was using the constructor I would do it like so –

MyClass[] myArray = new MyClass[] {
    new MyClass(1),
    new MyClass(2),
    new MyClass(3)
};

But with an empty constructor I’m not sure what to do.

MyClass[] myArray = new MyClass[] {
    new MyClass(),
    new MyClass(),
    new MyClass()
};

This is what I have at the moment, but it seems terribly inefficient – is there a better way?

(I called it MyClass / myArray for readability in the example – don’t worry, I do use sensible variable names!)

Answer 1

You either have to write them out one at a time, or you have to use a loop:

MyClass[] myArray = new MyClass[n];
for (int i = 0; i < myArray.length; ++i) {
    myArray[i] = new MyClass();
}