import java.util.Arrays;

class BookCook implements Comparable<BookCook>{
 private String title;
 private double price;
 public BookCook(String title,double price){
  this.title = title;
  this.price = price;
 }
 @Override
 public String toString() {
  return "书名："+this.title+",价格："+this.price;
 }
 @Override
 public int compareTo(BookCook o) {
  if(this.price > o.price){
   return 1;
  }else if(this.price < o.price){
   return -1;
  }else{
   return 0;
  }
 }
}

class Student {
 private String name;
 private double score;
 public Student(String name,double score){
  this.name = name;
  this.score = score;
 }
 public double getScore(){
  return this.score;
 }
 @Override
 public String toString() {
  return "姓名:"+this.name+",分数:"+this.score;
 }
 
}
class StudentComparator implements Comparator<Student> {
 @Override
 public int compare(Student o1,Student o2) {
  if(o1.getScore() > o2.getScore()){
   return 1;
  }else if(o1.getScore() < o2.getScore()){
   return -1;
  }else{
   return 0;
  }
 }
}
public class TestComparator {

 public static void main(String[] args) {
  
  Student[] sts = new Student[]{
    new Student("小戴",60),
    new Student("小王",90),
    new Student("老王",80),
    new Student("小萱",95)
  };
  
  java.util.Arrays.sort(sts, new StudentComparator());
  System.out.println(java.util.Arrays.toString(sts));
 }
}