Suppose we are living in a class named Person with instance variables name and age.
I would like to know whether it is possible to write a method that
- sorts a list ascendingly with respect to name (lexicographical order) and age,
- does not use Collections,
- does use Comparator.
If I were to use Collections, my code would be as follows:
public static void sortPeople(List<Person> people){
Collections.sort(people,new Comparator<Person>(){
@Override
public int compare(Person p1, Person p2){
if (p1.name.compareTo(p2.name)<0){
return -1;
} else if (p1.name.compareTo(p2.name)>0){
return 1;
} else {
return p1.age-p2.age;
}
}});
}
But as I said, I would like to know if it is possible to do it differently.
Thanks for your attention!
