package com.itheima_108;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
public class CollectionsDemo02 {
public static void main(String[] args) {
ArrayList<Student> array = new ArrayList<Student>();
Student s1 = new Student("林青霞",30);
Student s2 = new Student("张曼玉",35);
Student s3 = new Student("王祖贤",33);
Student s4 = new Student("柳烟",33);
array.add(s1);
array.add(s2);
array.add(s3);
array.add(s4);
Collections.sort(array, new Comparator<Student>() {
@Override
public int compare(Student s1, Student s2) {
int num = s1.getAge() - s2.getAge();
int num2 = num==0?s1.getName().compareTo(s2.getName()):num;
return num2;
}
});
for(Student s:array){
System.out.println(s.getName() + ":" + s.getAge());
}
}
}