Stream1.java

List<Consumer> consumersByAge =
                consumerList
                        .stream()
                        // filter is an intermediate operation
                        .filter(consumer -> consumer.getAge() > 30)
                        // collect is a terminal operation
                        .collect(Collectors.toList());

System.out.println(consumersByAge);
// Output: [Consumer(name=Sri, city=Hyd), Consumer(name=Bob, city=Berlin)]