Java 8 lambda use cases

Converting int[] to List of Integer Using Arrays.stream() we can convert like below public static void main(String ... str){ int input[] = {2,3,4,4,5,5,5,6,6,6,6,6,9,9,10,10,11,11,11,11,11,11,11,11,15}; List<Integer> print = Arrays.stream(inpu...