Question

With Java, is there a way to make a custom class that can have the [] accessor used on it like an array?

Normal array

int[] foo = int[5];
foo[4] = 5;
print(foo[4]);
//Output: "5"

Custom Class

class Bar {
    //Custom class that uses index as a ref
}

Bar foo = new Bar(5);
foo.set(4, 5);
print(foo[4]);
//Output: "5"

Answer 1

No, you cannot overload [] operator for your classes in Java. But you can create getter for your array.