Student类，包括学生姓名、性别、年龄、Java成绩。要求创建五个该类对象，输出每个学生信息，计算并输出这五个学生Java成绩的平均值

/**
*
* 一、Student类，包括学生姓名、性别、年龄、Java成绩。要求创建五个该类对象，
 *       输出每个学生信息，计算并输出这五个学生Java成绩的平均值，
 *      以及计算并输出他们Java成绩的最高分以及最低分是多少，分别是哪位同学。
*
*/

public class Student {

  public String name;
  public String gender;
  public int age;
  private double score;

  public double getScore() {
    return score;
  }


  public void setScore(double score) {
    this.score = score;
  }

  public Student(String name, String gender, int age, double score) {
    super();
    this.name = name;
    this.gender = gender;
    this.age = age;
    this.score = score;
  }

  public String toString() {
    return "Student [name=" + name + ", gender=" + gender + ", age=" + age + ", score=" + score + "]";
  }

  public static void display(Student[] stu) {
    double sum = 0;
    for (int i = 0; i < stu.length; i++) {
      double s = stu[i].getScore();
      sum = sum + s;
    }
    double av = sum / stu.length;
    System.out.println("JAVA平均成绩为：" + av);

  }

  public static void dp(Student[] stu) {
    System.out.println("学生成绩汇总表：");
    for (int i = 0; i < stu.length; i++) {
      System.out.print(stu[i] + "\n");
    }
  }

  public static void sort(Student[] stu) {
    for (int i = 0; i < stu.length; i++) {
      for (int j = i; j < stu.length; j++) {
        if (stu[i].getScore() < stu[j].getScore()) {
          Student tem = stu[j];
          stu[j] = stu[i];
          stu[i] = tem;
        }
      }

    }
    System.out.println("成绩最好的" + stu[0].toString());
    System.out.println("成绩最差的" + stu[4].toString());

  }

  public static void main(String[] args) {
    Student[] stu = new Student[5];
    Student s1 = new Student("李四", "女", 20, 95.5);
    Student s2 = new Student("王二", "男", 23, 98.5);
    Student s3 = new Student("麻子", "女", 23, 94.0);
    Student s4 = new Student("胡八一", "女", 20, 96.0);
    Student s5 = new Student("张三", "男", 21, 91.0);
    stu[0] = s1;
    stu[1] = s2;
    stu[2] = s3;
    stu[3] = s4;
    stu[4] = s5;
    Student.display(stu);
    Student.sort(stu);
    Student.dp(stu);
  }
}