package students;

/**

 * 二维数组

 */

public class Main {

public static void main(String[] args) {

int[][] scores = { //

{ 82, 90, 91 }, 

{ 68, 72, 64 }, 

{ 95, 91, 89 }, 

{ 67, 52, 60 }, 

{ 79, 81, 85 }, 

};

// TODO:

int n=0;

double average = 0;

for(int i=0;i<3;i++) {

for(int j=0;j<5;j++) {

average=average+scores[j][i];;

n++;

}

}

average=average/n;

System.out.println(average);

if (Math.abs(average - 77.733333) < 0.000001) {

System.out.println("测试成功");

} else {

System.out.println("测试失败");

}

}

}