将比较器与多个比较器一起使用

Question

我可以使用此代码中的所有简单比较器进行排序，但不能使用ComplexComparator. 我无法弄清楚如何编码才能使其正常工作。任何建议/解释将不胜感激。这是我的主要程序：package pkgTest;import java.util.Arrays;public class Main {    public static void main(String[] args) {        Student[] students = new Student[6];        students[0] = new Student("Pete", 1989, 3.6);        students[1] = new Student("Tomas", 1989, 3.9);        students[2] = new Student("Helen", 1990, 3.6);        students[3] = new Student("Steve", 1991, 3.7);        students[4] = new Student("Natalie", 1993, 3.7);        students[5] = new Student("John", 1992, 4.0);        NameComparator byName                = new NameComparator();        BirthDateComparator byBirthDate                = new BirthDateComparator();        AverageComparator byAverage                = new AverageComparator();        ComplexComparator complexSorting                = new ComplexComparator(byName,                        byAverage);        System.out.println("===============");        System.out.println("Before sorting:");        System.out.println("===============");        for (Student student : students) {            System.out.println(student.getName()                    + " // " + student.getBirthDate()                    + " // " + student.getAverage());        }        Arrays.sort(students, complexSorting);        System.out.println("==============");        System.out.println("After sorting:");        System.out.println("==============");        for (Student student : students) {            System.out.println(student.getName()                    + " // " + student.getBirthDate()                    + " // " + student.getAverage());        }    }}