Student实体类内部比较器比较年龄，身高，名字

Student实体类代码如下所示：
package com.test.Test08;


public class Student implements Comparable{
    private int age;
    private double height;
    private String name;

    public int getAge() {
        return age;
    }

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

    public double getHeight() {
        return height;
    }

    public void setHeight(double height) {
        this.height = height;
    }

    public String getName() {
        return name;
    }

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

    public Student(int age, double height, String name) {
        this.age = age;
        this.height = height;
        this.name = name;
    }

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

    @Override
    public int compareTo(Student o) {
        // return 0;
        //按照年龄进行比较
        //return this.getAge()-o.getAge();
        //按照身高进行比较
        /*return ((Double)(this.getHeight())).compareTo((Double)(o.getHeight()));*/
        //按照名字比较
        return this.getName().compareTo(o.getName());
    }
}

测试类如下所示：

package com.test.Test08;

public class Test02 {
    public static void main(String[] args) {
        //比较两个学生
        Student s1 = new Student(14, 160.2, "lili2");
        Student s2 = new Student(14, 170.5, "lili");
        //System.out.println(s1.compareTo(s2)); //0 -4  年龄进行比较
        //System.out.println(s1.compareTo(s2)); //-1 身高进行比较
        System.out.println(s1.compareTo(s2)); //0 1 名字进行比较
    }
}