
[프로그래머스, Java] 평균 구하기
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CodingTest/Programmers
💡풀이1import java.util.*;class Solution { public double solution(int[] arr) { return (double) Arrays.stream(arr).sum() / arr.length; }}💡풀이2import java.util.*;class Solution { public double solution(int[] arr) { return Arrays.stream(arr).average().getAsDouble(); }}또는class Solution { public double solution(int[] arr) { return Arrays.stream(arr).average().orElse(..