import java.util.list报错_import java.util.ArrayList;

import java.util.ArrayList;

import java.util.ArrayList;

import java.util.Collections;

import java.util.List;

public class Demo {

static class Student implements Comparable{

x05 String name;

x05 int age;

x05public Student(String name,int age) {

x05x05super();

x05x05this.name = name;

x05x05this.age = age;

x05}

x05@Override

x05public String toString() {

x05x05return name+","+age;

x05}

x05@Override

x05public int compareTo(Object o) {

x05x05Student stu = (Student)o;

x05x05if(this.age>stu.age){

x05x05x05return 1;

x05x05}

x05x05else if(this.age==stu.age && this.name.equals(stu.name)){

x05x05 return 0;

x05x05}

x05x05else{

x05x05x05return -1;

x05x05}

x05}

x05/*@Override

x05public int compareTo(Student o) {

x05x05Student stu = (Student)o;

x05x05if(this.age>stu.age){

x05x05x05return 1;

x05x05}

x05x05else if(this.age==stu.age && this.name.equals(stu.name)){

x05x05 return 0;

x05x05}

x05x05else{

x05x05x05return -1;

x05x05}

x05}*/

}

public static void main(String[] args) {

x05 List list = new ArrayList();

x05 Student[] stus = new Student[]{new Student("小美",21),

x05x05x05x05new Student("阿聪",22),new Student("武大郎",28),

x05x05x05x05new Student("阮小七",26),new Student("晁盖",30),

x05x05x05x05new Student("鲁智深",29),new Student("孙二娘",26),

x05x05x05x05new Student("扈三娘",23),new Student("武松",24)

x05x05};

Collections.addAll(list,stus);

Collections.sort(list);

for(int i = 0;i