题目内容

歌手大赛程序模板请按模板要求，将【代码】替换为Java程序代码。最后一空请填写本题的运行结果。注意填写的程序语句，以分号结尾的一律改为逗号，否则不得分。这是超星系统平台的设置，所以提醒同学们注意！！！！CompurerAverage.javapublic interface CompurerAverage {//接口public double average(double x[]);}SongGame.javapublic class SongGame implements CompurerAverage {public double average(double x[]) {int count=x.length;double aver=0,temp=0;for(int i=0;i2)aver=aver/(count-2);elseaver=0;return aver;}}School.javapublic class School implements CompurerAverage {//要求用增强的for语句获取每个元素并存放于局部变量xi中，平均值存放于局部变量avre中【代码1】//重写public double average(double x[])方法,返回数组x[]的元素的算术平均}Estimator.javapublic class Estimator{//主类public static void main(String args[]) {double a[] = {9.89,9.88,9.99,9.12,9.69,9.76,9.27};double b[] ={56,55.5,65,50,51.5,53.6,70,49,66,62,46};CompurerAverage computer;computer=new SongGame();double result=【代码2】 //computer调用average(double x[])方法，将数组a传递给参数xSystem.out.printf("%n");System.out.printf("歌手最后得分:%5.3f\n",result);computer=new School();result=【代码3】 //computer调用average(double x[])方法，将数组b传递给参数xSystem.out.printf("学生平均体重:%-5.2f kg",result);}}

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