对象比较

public class 对象比较 {
    /**
}
    public class Person implements Comparable<Person>
     @Override
        public int compareTo(Person p)
        {
            return this.age-p.getAge();
        }
    
    
    
    public class PersonCompartor implements Comparator<Person>
    {
        @Override
        public int compare(Person o1, Person o2)
        {
            return o1.getAge()-o2.getAge();
        }
        */
}