Java

18.7    Intermediary Operations

Not all terminal operations result in a new modified stream but instead may simply terminate the current stream. The situation is different for intermediary operations, which modify the stream, for example, by removing elements, mapping them to other values and types, or sorting elements. Each intermediary method returns a new stream object, as seen in Table 18.4 .

Full Notation	Cascaded Notation
Stream<Object> a = Stream.of(" ",'3',null,"2",1,"");Stream<Object> b = a.filter(Objects::nonNull);Stream<String> c = b.map(Objects::toString );Stream<String> d = c.map(String::trim);Stream<String> e = d.filter(s -> !s.isEmpty());Stream<Integer> f = e.map(Integer::parseInt);Stream<Integer> g = f.sorted(); ...