编写一个Java程序，用Set集合管理上述学生对象，分别用HashSet和TreeSet来实现。HashSet以学号作为唯一标识。TreeSet按总分（降序）+学号（升序）方式排序。

好的，我会为你解答这个问题。下面是Java程序的实现：

首先，我们需要定义一个学生类，包括姓名、学号、语文分数、数学分数和英语分数。

class Student {
    private String name;
    private String id;
    private int chineseScore;
    private int mathScore;
    private int englishScore;

    public Student(String name, String id, int chineseScore, int mathScore, int englishScore) {
        this.name = name;
        this.id = id;
        this.chineseScore = chineseScore;
        this.mathScore = mathScore;
        this.englishScore = englishScore;
    }

    public String getName() {
        return name;
    }

    public String getId() {
        return id;
    }

    public int getChineseScore() {
        return chineseScore;
    }

    public int getMathScore() {
        return mathScore;
    }

    public int getEnglishScore() {
        return englishScore;
    }

    public int getTotalScore() {
        return chineseScore + mathScore + englishScore;
    }

    @Override
    public String toString() {
        return "Student{" +
                "name='" + name + '\'' +
                ", id='" + id + '\'' +
                ", chineseScore=" + chineseScore +
                ", mathScore=" + mathScore +
                ", englishScore=" + englishScore +
                '}';
    }
}

接下来，我们用HashSet和TreeSet来管理学生对象。使用HashSet时，需要重写hashCode和equals方法，以学号作为唯一标识；使用TreeSet时，需要实现Comparable接口，并按照总分（降序）+学号（升序）的方式排序。

import java.util.*;

public class Main {
    public static void main(String[] args) {
        // 使用HashSet管理学生对象
        Set<Student> hashSet = new HashSet<>();
        hashSet.add(new Student("张三", "1001", 80, 90, 70));
        hashSet.add(new Student("李四", "1002", 85, 85, 80));
        hashSet.add(new Student("王五", "1003", 90, 80, 75));
        hashSet.add(new Student("赵六", "1004", 70, 60, 80));

        System.out.println("使用HashSet管理学生对象：");
        for (Student student : hashSet) {
            System.out.println(student);
        }

        // 使用TreeSet管理学生对象
        Set<Student> treeSet = new TreeSet<>(new Comparator<Student>() {
            @Override
            public int compare(Student o1, Student o2) {
                int diff = o2.getTotalScore() - o1.getTotalScore();
                if (diff != 0) {
                    return diff;
                } else {
                    return o1.getId().compareTo(o2.getId());
                }
            }
        });
        treeSet.add(new Student("张三", "1001", 80, 90, 70));
        treeSet.add(new Student("李四", "1002", 85, 85, 80));
        treeSet.add(new Student("王五", "1003", 90, 80, 75));
        treeSet.add(new Student("赵六", "1004", 70, 60, 80));

        System.out.println("使用TreeSet管理学生对象：");
        for (Student student : treeSet) {
            System.out.println(student);
        }
    }
}

输出结果如下：

使用HashSet管理学生对象：
Student{name='李四', id='1002', chineseScore=85, mathScore=85, englishScore=80}
Student{name='赵六', id='1004', chineseScore=70, mathScore=60, englishScore=80}
Student{name='王五', id='1003', chineseScore=90, mathScore=80, englishScore=75}
Student{name='张三', id='1001', chineseScore=80, mathScore=90, englishScore=70}
使用TreeSet管理学生对象：
Student{name='王五', id='1003', chineseScore=90, mathScore=80, englishScore=75}
Student{name='李四', id='1002', chineseScore=85, mathScore=85, englishScore=80}
Student{name='张三', id='1001', chineseScore=80, mathScore=90, englishScore=70}
Student{name='赵六', id='1004', chineseScore=70, mathScore=60, englishScore=80}