程序代码：

package array;

public class Students {
      private String name;
      private long coure;
    public String getName() {
        return name;
    }
    public void setName(String name) {
        this.name = name;
    }
    public long getCoure() {
        return coure;
    }
    public void setCoure(long coure) {
        this.coure = coure;
    }
      public String toString() {
          return this.name;
      }
}


package array;

import java.util.Scanner;

public class A3 {
    public static void main(String[] args) {
        Students c=new Students();
        System.out.println("请输入学生人数：");
        Scanner scan=new Scanner(System.in);
        int num=scan.nextInt();
        System.out.println(num);
         Students arr[]=new Students[num];
         for(int i=0;i<arr.length;i++) {
             System.out.println("请输入第"+(i+1)+"名孩子的姓名");
             String name=scan.next();
             arr[i].setName(name);
             System.out.println("请输入第"+(i+1)+"名孩子的成绩");
             long coures=scan.nextLong();
             arr[i].setCoure(coures);    
         }
         scan.close();
         for(int i=0;i<arr.length;i++) {
             for(int j=i+1;j<arr.length;j++) {
                 if(arr[j].getCoure()>arr[i].getCoure()) {
                     c=arr[j];
                     arr[j]=arr[i];
                     arr[i]=c;
                 }
             }
         }
         System.out.println("按成绩打印如下");
         for(int i=0;i<arr.length;i++)
             System.out.println(arr[i].getName()+"的成绩是"+arr[i].getName());
    }
}