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 }, // }; // TODO: double average = 0; for (int i=0; i<scores.length; i++) { double avgScores = 0; for (int j=0; j<scores[i].length; j++) { avgScores += scores[i][j]; } avgScores /= scores[i].length; average += avgScores; } average /= scores.length; 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"); } } }
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