package com.itranswarp.learnjava;



/**

 * 二维数组

 */

public class Main {

	public static void main(String[] args) {

		// 用二维数组表示的学生成绩:

		int[][] scores = { //

				{ 82, 90, 91 }, //

				{ 68, 72, 64 }, //

				{ 95, 91, 89 }, //

				{ 67, 52, 60 }, //

				{ 79, 81, 85 }, //

		};

		double sum =0;

		for (int i=0;i<scores.length;i++) {

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

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

			}

		}

		double average = 0;

		average = sum/(3*5);

		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");

		}

	}

}