java专项练习(评分)

package 专题练习;

import java.util.Scanner;

public class marking_by_judges {
    //需求:在唱歌比赛中,有6名评委给选手打分,范围是[0,100]的整数.
    //选手最后得分为去掉最高分和最低分的平均分
    public static void main(String[] args) {
        //储存分数数组
        int[] score_six = new int[6];
        for (int i = 0; i < 6; i++) {
            System.out.println("please input NO." + " " + (i+1) + "  " + "number :");
            score_six[i] = score();
            if(score_six[i] == -1) {
                System.out.println("No. " + (i + 1) + " is wrong");
                return;
            }
        }
        avg_score(score_six);
    }





    //打分
    public static int score(){
        Scanner k = new Scanner(System.in);
        int num = k.nextInt();
        if(num > 100 || num < 0){
            return -1;
        }

        return num;
    }



    //算均分
    public static void avg_score(int[] data){
        int temp;
        //先从小到大排序  , 当然也可以直接找到最大值和最小值
        for (int i = 0; i < data.length ; i++) {
            for (int j = i+1; j < data.length ; j++) {
                if(data[i] > data[j]){
                    temp = data[j];
                    data[j] = data[i];
                    data[i] = temp;
                }
            }
        }

        int sum = 0;
        for (int t = 1; t < data.length - 1; t++) {
            sum = sum + data[t];
        }


        System.out.println("The average number is " + sum * 1.0 / 4.0);
    }
}