Java8 stream filter

Java8 stream

//filter eg
        String strs[] = new String[]{"1","2", "0", "33", "3", "4","abc"};
        List list =  Arrays.stream(strs).filter(b -> b.length()<3 ).sorted().collect(Collectors.toList());
        list.stream().forEach( System.out::println);
        System.out.println("------------------");

// map eg
        List list2 = Arrays.stream(strs).map(v->v.substring(0,1)).sorted().collect(Collectors.toList());
        list2.stream().forEach( System.out::println);