public static void main(String[] args) { Stream<String> stream1 = Stream.of("nao","akko","ami"); Map<Integer, String> map1 =stream1.collect(Collectors.toMap(String::length, s -> s,(s1,s2) -> s1 + ":" + s2)); System.out.println(map1); System.out.println(map1.getCla</integer,></string>…