int[][] scores = { { 82, 90, 91 }, { 68, 72, 64 }, { 95, 91, 89 }, { 67, 52, 60 }, { 79, 81, 85 }, }; double sum = 0.0; int num = 0; for (int i = 0; i < scores.length;) { for (int p : scores[i++]) { sum += p; num++; } } System.out.println(sum / num);
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xuanChristy