limit()实现数据截取

该方法会返回一个不超过给定长度的流
样例

public class LimitDemo {
    public static void main(String[] args) {

        List<Student> studentList = new ArrayList<>();
        studentList.add(new Student("张三", 23));
        studentList.add(new Student("李四", 20));
        studentList.add(new Student("王五", 19));
        studentList.add(new Student("小明", 21));
        studentList.add(new Student("小红", 24));

        List<Student> collect = studentList.stream().limit(3).collect(Collectors.toList());

        System.out.println(collect.toString());
    }
}

执行结果：

[Student{id=null, name='王五', age=19}, Student{id=null, name='小明', age=21}, Student{id=null, name='小红', age=24}]

skip()实现数据跳过

该方法会跳过指定长度的数组，一般与limit()一起用

public class SkipDemo {
    public static void main(String[] args) {

        List<Student> studentList = new ArrayList<>();
        studentList.add(new Student("张三", 23));
        studentList.add(new Student("李四", 20));
        studentList.add(new Student("王五", 19));
        studentList.add(new Student("小明", 21));
        studentList.add(new Student("小红", 24));

        List<Student> collect = studentList.stream().skip(2).limit(3).collect(Collectors.toList());

        System.out.println(collect.toString());
    }
}

执行结果:

public class SkipDemo {
    public static void main(String[] args) {

        List<Student> studentList = new ArrayList<>();
        studentList.add(new Student("张三", 23));
        studentList.add(new Student("李四", 20));
        studentList.add(new Student("王五", 19));
        studentList.add(new Student("小明", 21));
        studentList.add(new Student("小红", 24));

        List<Student> collect = studentList.stream().skip(2).limit(3).collect(Collectors.toList());

        System.out.println(collect.toString());
    }
}