package com.TreeSet排序案例01;

import java.util.TreeSet;

public class main {
    
    
    public static void main(String[] args) {
    
    
        TreeSet<Student> ts = new TreeSet<Student>();
        Student s1 = new Student("aa",90,58);
        Student s2 = new Student("bb",60,45);
        Student s3 = new Student("cc",58,25);
        Student s4 = new Student("cc",16,37);
        Student s5 = new Student("dd",35,96);
        Student s6 = new Student("ee",25,45);
        Student s7 = new Student("ff",45,25);
        Student s8 = new Student("gg",45,25);
        Student s9 = new Student("hh",60,10);
        ts.add(s1);
        ts.add(s2);
        ts.add(s3);
        ts.add(s4);
        ts.add(s5);
        ts.add(s6);
        ts.add(s7);
        ts.add(s8);
        ts.add(s9);
        for (Student s : ts) {
    
    
            System.out.println(s.getName() + ",语文：" + s.getChinese() + ",数学：" + s.getMath() + ",总分：" + s.getSum());
        }
    }
}

有参构造中的Sum = chinese+math;不要忘了加

package com.TreeSet排序案例01;

public class Student implements Comparable<Student> {
    
    

    private String name;
    private int Chinese;
    private int Math;
    private int Sum;

    public Student() {
    
    
    }

    public Student(String name, int chinese, int math) {
    
    
        this.name = name;
        Chinese = chinese;
        Math = math;
        Sum = chinese+math;
    }

    public int getSum() {
    
    
        return Sum;
    }

    public void setSum(int chinese, int math) {
    
    
        Sum = chinese + math;
    }

    public String getName() {
    
    
        return name;
    }

    public void setName(String name) {
    
    
        this.name = name;
    }

    public int getChinese() {
    
    
        return Chinese;
    }

    public void setChinese(int chinese) {
    
    
        Chinese = chinese;
    }

    public int getMath() {
    
    
        return Math;
    }

    public void setMath(int math) {
    
    
        Math = math;
    }

    @Override
    public int compareTo(Student o) {
    
    
        int i = this.Sum - (o.Math + o.Chinese);
        int i1 = i == 0 ? o.name.compareTo(this.name):i;
        return i1;
    }
}

输出结果为：
cc,语文：16,数学：37,总分：53
hh,语文：60,数学：10,总分：70
gg,语文：45,数学：25,总分：70
ff,语文：45,数学：25,总分：70
ee,语文：25,数学：45,总分：70
cc,语文：58,数学：25,总分：83
bb,语文：60,数学：45,总分：105
dd,语文：35,数学：96,总分：131
aa,语文：90,数学：58,总分：148