{eudriscabrera.com}

List<String> list = Arrays.asList(
"BarCamp", "MongoDB", "10Gen", "TokuMX", "Nagios", "PUCMM", "Ruby", "JSON",
"JSON");

List<String> newList1 = list
.stream()
.filter(s -> (s.length() % 2)==1)
.map(String::toLowerCase)
.peek(System.out::println)
.collect(Collectors.toList());

List<String> newList1 = list
.stream()
.filter(s -> (s.length() % 2)==1)
.map(String::toLowerCase)
.peek(s -> s.toString())
.collect(Collectors.toList());