Creating a list with repeating element

Question

Is there an utility method in Java that generates a list or array of a specified length with all elements equal to a specified value (e.g [\"foo\", \"foo\", \"foo\", \"foo\"

Answer 1

Using IntStream, you can generate a range of integers, map them to the element you want and collect it as a list.

List list = IntStream.rangeClosed(0, 5)
            .mapToObj(i -> "foo")
            .collect(Collectors.toList());

Or, as an array

 String[] arr = IntStream.rangeClosed(0, 5)
            .mapToObj(i -> "foo")
            .toArray(String[]::new);