Using an existing array in another class

Let's change the way I am asking the question. For constructing an object in a class, we can also use some other variables. Consider this example:

public class Foo {
    int X1;
    int X2;
    public Foo(int a) {
        int[] array=new int[4];
        // ...
    }
}

If we create 2 objects of this class, we will have 2 variables per object and totally the memory will be occupied for 4 integer variables. My concern is the memory dedicated to the integer array defined inside the constructor. How the memory will be assigned when creating several objects?

Thanks,