What does `List.of(1, 2, 3)` produce in Java 9+?

Question

Java Professional — Easy

What does `List.of(1, 2, 3)` produce in Java 9+?

Accepted Answer

`List.of(1, 2, 3)` in Java 9+ produces an unmodifiable list containing the elements 1, 2, and 3. This means that the list cannot be modified after creation.