diff --git a/Leetcode/Number of Arithmetic Triplets.java b/Leetcode/Number of Arithmetic Triplets.java
new file mode 100644
index 00000000..54feb625
--- /dev/null
+++ b/Leetcode/Number of Arithmetic Triplets.java	
@@ -0,0 +1,23 @@
+class Solution {
+    public int arithmeticTriplets(int[] nums, int diff) {
+        //int i =2;
+        //int j=i-2;
+        int n= nums.length;
+        int count=0;
+        
+        for(int i=1;i<n-1;i++){
+            for(int j=0;j<i;j++){
+                int x = nums[i]-nums[j];
+                if(x==diff){
+                    for(int k=i+1;k<n;k++){
+                        if(nums[k] - nums[i] == x){
+                            count++;
+                        }
+                    }
+                }
+                
+            }
+        }
+        return count;
+    }
+}