Set_advanced_project/Set_module/src/TreeSet_package3/Student.java

package TreeSet_package3;

public class Student implements Comparable<Student> {
    //姓名
    private String name;
    //年龄
    private int age;
    //语文成绩
    private int chinese;
    //数学成绩
    private int math;
    //英语成绩
    private int english;

    public Student() {
    }

    public Student(String name, int age, int chinese, int math, int english) {
        this.name = name;
        this.age = age;
        this.chinese = chinese;
        this.math = math;
        this.english = english;
    }

    public String getName() {
        return name;
    }

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

    public int getAge() {
        return age;
    }

    public void setAge(int age) {
        this.age = age;
    }

    public int getChinese() {
        return chinese;
    }

    public void setChinese(int chinese) {
        this.chinese = chinese;
    }

    public int getMath() {
        return math;
    }

    public void setMath(int math) {
        this.math = math;
    }

    public int getEnglish() {
        return english;
    }

    public void setEnglish(int english) {
        this.english = english;
    }

    @Override
    public String toString() {
        return "Student{" +
                "name='" + name + '\'' +
                ", age=" + age +
                ", chinese=" + chinese +
                ", math=" + math +
                ", english=" + english +
                '}';
    }

    @Override
    public int compareTo(Student o) {
        int sum1 = this.chinese + this.math + this.english;
        int sum2 = o.getChinese() + o.getMath() + o.getEnglish();

        int i = sum1 - sum2;

        i = i == 0 ? this.getChinese() - o.getChinese() : i;

        i = i == 0 ? this.getMath() - o.getMath() : i;

        i = i == 0 ? this.getEnglish() - o.getEnglish() : i;

        i = i == 0 ? this.getAge() - o.getAge() : i;

        i = i == 0 ? this.getName().compareTo(o.getName()) : i;

        return i;
    }
}