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

Version you can use for primitive arrays(Java 8):

DoubleStream.generate(() -> 123.42).limit(777).toArray(); // returns array of 777 123.42 double vals

Note that it returns double[], not Double[]

Works for IntegerStream, DoubleStream, LongStream

UPD

and for string dups you can use:

Stream.generate(() -> "value").limit(400).toArray()

No extra libs required, single line