创建一个学生类型，包括姓名（字符串类型），性别（字符型），考试成绩（整数数组，长度为10）

作业：
1.创建一个学生类型，包括姓名（字符串类型），性别（字符型），考试成绩（整数数组，长度为10）
2.创建方法，计算平均分（去掉一个最高分，去掉一个最低分，剩余的取平均分）
3.编写一个方法，参数为学生数组，根据学生的平均成绩，按高到低排序。

package lession0712;

public class Student {

    private String name;
    private char sex;
    private int age;
    private int[] score = new int[10];

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public char getSex() {
        return sex;
    }

    public void setSex(char sex) {
        this.sex = sex;
    }

    public int getAge() {
        return age;
    }

    public void setAge(int age) {
        this.age = age;
    }

    public int[] getScore() {
        return score;
    }

    public void setScore(int[] score) {
        this.score = score;
    }

    // 计算最大值
    public int getMax() {
        int max = score[0];
        for (int i = 0; i < score.length; i++) {
            if (score[i] > max) {
                max = score[i];
            }
        }
        return max;
    }

    // 计算最小值
    public int getMin() {
        int min = score[0];
        for (int i = 0; i < score.length; i++) {
            if (score[i] < min) {
                min = score[i];
            }
        }
        return min;
    }

    // 计算总分
    public int getTotal() {
        int sum = 0;
        for (int i = 0; i < score.length; i++) {
            sum += score[i];
        }
        return sum;
    }

    // 计算平均分
    public double avg() {
        return 1.0 * (this.getTotal() - this.getMax() - this.getMin()) / (score.length - 2);
    }
}

 

package lession0712;

import java.util.Scanner;

public class Zhu {

    public static void main(String[] args) {

        Scanner scan = new Scanner(System.in);
        System.out.println("请输入学生个数(1-9):");
        int n = scan.nextInt();

        Student[] stu = new Student[n];
        for (int k = 0; k < n; k++) {
            stu[k] = new Student();
            stu[k].setName(f1(3));
            char[] sex = { '男', '女' };
            stu[k].setSex(sex[(int) (Math.random() * 2)]);
            int[] score = new int[10];
            for (int j = 0; j < 10; j++) {// 把第k个同学的成绩j随机从40-100赋值
                score[j] = (int) (Math.random() * 60 + 40);
            }
            stu[k].setScore(score);
        }

        for (int i = 0; i < n; i++) {
            System.out.println("第" + (i + 1) + "个学生：");
            System.out.print("姓名:" + stu[i].getName() + " ");
            System.out.print("姓别:" + stu[i].getSex() + " ");
            System.out.print("成绩: ");
            for (int j = 0; j < stu[i].getScore().length; j++) {
                System.out.print(stu[i].getScore()[j] + "  ");
            }
            System.out.println();
        }
        sort(stu);
        scan.close();
    }

    public static void sort(Student[] students) {
        for (int i = 0; i < students.length - 1; i++) {
            for (int j = i + 1; j < students.length; j++) {
                if (students[j].avg() > students[i].avg()) {
                    Student t = students[i];
                    students[i] = students[j];
                    students[j] = t;
                }
            }
        }

        System.out.println();
        System.out.println("根据学生的平均成绩，按高到低排序：");
        for (int i = 0; i < students.length; i++) {
            System.out.print("第" + (i + 1) + "名：" + students[i].getName() + " " + " 性别：" + students[i].getSex());
            System.out.print(" 成绩：");
            for (int j = 0; j < students[i].getScore().length; j++) {
                System.out.print(students[i].getScore()[j] + "  ");
            }
            System.out.println(" 平均分" + students[i].avg());
        }

    }

    private static String f1(int t) {
        String s = new String();
        for (int j = 0; j < t; j++) {
            char c = (char) (Math.random() * 25 + 97);
            s += c;
        }
        return s;
    }
}

输出结果：