[20-05-01][Self-test 29]Java Pass or Fail

 1 package test_6_3;
 2 
 3 public class Student {
 4 
 5     /**
 6      * 编写一个程序，统计学生成绩，其功能包括输入学生的姓名和成绩，
 7      * 按成绩从高到低排列打印输出，对前%70的学生定为合格(PASS)，而后30%的学生定为不合格(FAIL)
 8      */
 9     
10     public String name;
11     public int score;
12     
13     public Student(String name, int score) {
14         
15         this.name = name;
16         this.score = score;
17     }
18     
19 }

 1 package test_6_3;
 2 
 3 public class Deal {
 4     
 5     public void sort(Student[] students) {
 6         
 7         for (int i = 0; i < students.length - 1; i++) {
 8             for (int j = i + 1; j < students.length; j++) {
 9                 if (students[i].score < students[j].score) {
10                     Student temp = students[i];
11                     students[i] = students[j];
12                     students[j] = temp;
13                 }
14             }
15             
16         }
17     
18     }
19 
20     public void deal(Student[] students) {
21         
22         sort(students);
23         
24         for (int i = 0; i < students.length; i++) {
25             
26             if (i + 1 <= students.length * 0.7) {
27                 System.out.println("姓名：" + students[i].name + "，成绩：" + students[i].score + "，PASS");
28             } else {
29                 System.out.println("姓名：" + students[i].name + "，成绩：" + students[i].score + "，FAIL");
30             }
31         }
32     }
33 
34 }

 1 package test_6_3;
 2 
 3 public class Test {
 4 
 5     public static void main(String[] args) {
 6         
 7         Student[] students = new Student[5];
 8         
 9         students[0] = new Student("Joker", 90);
10         students[1] = new Student("Navi", 100);
11         students[2] = new Student("Violet", 90);
12         students[3] = new Student("Skull", 20);
13         students[4] = new Student("Panther", 80);
14         
15         Deal deal = new Deal();
16         
17         deal.deal(students);
18 
19     }
20 
21 }