diff --git a/programmers/평균 구하기/solution.java b/programmers/평균 구하기/solution.java
new file mode 100644
index 0000000..0511e17
--- /dev/null
+++ b/programmers/평균 구하기/solution.java	
@@ -0,0 +1,8 @@
+// [문제 링크]: https://school.programmers.co.kr/learn/courses/30/lessons/12944
+
+import java.util.*;
+class Solution {
+    public double solution(int[] arr) {
+        return Arrays.stream(arr).mapToDouble(num -> num).average().getAsDouble();
+    }
+}
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