diff --git a/M_2149_RearrangeArrayElementsbySign.java b/M_2149_RearrangeArrayElementsbySign.java
new file mode 100644
index 0000000..6b84551
--- /dev/null
+++ b/M_2149_RearrangeArrayElementsbySign.java
@@ -0,0 +1,18 @@
+class Solution {
+    public int[] rearrangeArray(int[] nums) {
+        int ret[] = new int[nums.length];
+        int even=0;
+        int odd=1;
+        for(int i=0; i<nums.length;i++){
+            if(nums[i]>0){
+                ret[even]=nums[i];
+                even+=2;
+            }
+            else{
+                ret[odd]=nums[i];
+                odd+=2;
+            }
+        }
+        return ret;
+    }
+}
\ No newline at end of file