Creating a 2D object array in a loop

I have an object with two constants that I want initialising in the constructor using two parameters.

I also want to make a 2D array of these objects.

What is the syntax for this?

If I type:

Java Code:

Obj[][] myObj = new Obj[10][10];

Does this automatically run the constructor and assign these objects to the array? Or are the elements left empty (Just the memory allocated for the objects?)

Can I then go on make a loop and create objects for the array in a way similar to this (Not a loop in the example):

Java Code:

myObj[0][0] = Obj(20, 100);
myObj[0][0] = Obj(24, 29);
//...