Stream - Filter

原创转载请注明出处：http://agilestyle.iteye.com/blog/2425202

 

Filter

private static void filterTest() {
    List<Integer> list = Arrays.asList(1, 2, 3, 4, 5, 6, 7);

    List<Integer> result = list.stream().filter(i -> i % 2 == 0).collect(Collectors.toList());

    System.out.println(result);
}

 

Distinct

private static void distinctTest() {
    List<Integer> list = Arrays.asList(1, 2, 2, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5, 5, 5, 6, 6, 6, 6, 6, 6);

    List<Integer> result = list.stream().distinct().collect(Collectors.toList());

    System.out.println(result);
}

 

Skip

private static void skipTest() {
    List<Integer> list = Arrays.asList(1, 2, 2, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5, 5, 5, 6, 6, 6, 6, 6, 6);

    List<Integer> result = list.stream().skip(6).collect(Collectors.toList());

    System.out.println(result);
}

 

Limit

private static void limitTest() {
    List<Integer> list = Arrays.asList(1, 2, 2, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5, 5, 5, 6, 6, 6, 6, 6, 6);

    List<Integer> result = list.stream().limit(6).collect(Collectors.toList());

    System.out.println(result);
}