1 package hello;
2
3 import java.util.Comparator;
4 import java.util.HashSet;
5 import java.util.Random;
6 import java.util.Scanner;
7 import java.util.TreeSet;
8
9 public class Test02 {
10
11 public static void main(String[] args) {
12 TreeSet<Student> ts=new TreeSet<Student>(new Comparator<Student>() {
13
14 @Override
15 public int compare(Student o1, Student o2) {
16 // TODO Auto-generated method stub
17 int num=o1.getSum()-o2.getSum();
18 int num2=num==0?o1.getChinese()-o2.getChinese():num;
19 int num3=num2==0?o1.getMath()-o2.getMath():num2;
20 int num4=num3==0?o1.getEnglish()-o2.getEnglish():num3;
21 return num4;
22 }
23
24 });
25
26 for(int x=1;x<=5;x++){
27 Scanner sc=new Scanner(System.in);
28 System.out.println("请输入第："+x+"学生的名称");
29 String name=sc.nextLine();
30 System.out.println("请输入语文成绩：");
31 String chineseString=sc.nextLine();
32
33 System.out.println("请输入数学成绩：");
34 String mathString=sc.nextLine();
35
36 System.out.println("请输入英语成绩：");
37 String englishString=sc.nextLine();
38
39 Student s=new Student();
40 s.setName(name);
41 s.setChinese(Integer.parseInt(chineseString));
42 s.setMath(Integer.parseInt(mathString));
43 s.setEnglish(Integer.parseInt(englishString));
44
45 ts.add(s);
46 }
47 System.out.println("录入完毕");
48 for(Student s:ts){
49 System.out.println(s.getName()+"\t"+s.getChinese()+"\t"+s.getMath()+"\t"+s.getEnglish());
50 }
51 }
52 }
