How to determine if my array is empty

I need help to check if my array is full or if I can fit more in there. I thought I could check if just one of the positions was empty by doing the following:

    for (int i =0; i <array.length; i++){
        if(array[i] == null){
            return false;
        }else{
            return true;
        }
    }

To test this I created am array with int and got the error: The operator == is undefined for the argument type(s) int, null is there another way I can do this? In my original task I will do this with objects and not int, does this mean it will work with objects but not with int?

Primitive types cannot be null, that's why that does not work. With objects, it will work. In this case, you can use the following code:

public boolean isArrayFull(Integer[] array) {
    for (Integer i = 0; i < array.length; i++) {
        if (array[i] == null) {
            return false;
        }
    }
    return true;
}

This also fixes a bug in your code. Your code would return true, if the first element is not null.