diff --git "a/leetcode3/\354\235\264\354\247\204\355\235\254/88. Merge Sorted Array.java" "b/leetcode3/\354\235\264\354\247\204\355\235\254/88. Merge Sorted Array.java"
new file mode 100644
index 00000000..5f381761
--- /dev/null
+++ "b/leetcode3/\354\235\264\354\247\204\355\235\254/88. Merge Sorted Array.java"	
@@ -0,0 +1,30 @@
+import java.util.ArrayDeque;
+import java.util.Deque;
+
+class Solution {
+    public void merge(int[] nums1, int m, int[] nums2, int n) {
+        int idx1 = 0;
+        int idx2 = 0;
+        Deque<Integer> dq = new ArrayDeque<>();
+
+        for (int i = 0; i < m; i++) {
+            dq.add(nums1[i]);
+        }
+
+        for (int i = 0; i < m + n; i++) {
+            if (!dq.isEmpty() && idx2 < n) {
+                if (dq.peek() <= nums2[idx2]) {
+                    nums1[i] = dq.poll();
+                } else {
+                    nums1[i] = nums2[idx2];
+                    idx2++;
+                }
+            } else if (!dq.isEmpty()) {
+                nums1[i] = dq.poll();
+            } else {
+                nums1[i] = nums2[idx2];
+                idx2++;
+            }
+        }
+    }
+}
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