List with both strings and numbers

Question

I am doing exercise and i have this situation, where i need to count the sum of the numbers, where the integers are as strings or numbers, but in the same array. One of the test cass is:

@Test
    public void test_5() {
        assertEquals(45, mixedSum.sum(Arrays.asList("1", "5", "8", 8, 9, 9, 2, "3")));
    }

I understand the logic of the exercise, but I want to recreate in my IDE to understand it better. I know that it's not the "best" way to go with that, but the List that we see in the @test comes from ArrayList < Object > foo = new ArrayList<>()?

Update:

To be more precise, i meant in what way the mentioned list was made? Declaring List as Object type and then putting different values to it or there is some other way to do that?

List<?> with both strings and numbers

0 Answers