How to merge two sorted arrays into a sorted array? [closed]

Answer 1

Apache collections supports collate method since version 4; you can do this using the collate method in:

org.apache.commons.collections4.CollectionUtils

Here quote from javadoc:

collate(Iterable a, Iterable b, Comparator c)

Merges two sorted Collections, a and b, into a single, sorted List such that the ordering of the elements according to Comparator c is retained.

Do not re-invent the wheel! Document reference: http://commons.apache.org/proper/commons-collections/apidocs/org/apache/commons/collections4/CollectionUtils.html