diff --git a/TwoSum.java b/TwoSum.java
new file mode 100644
index 00000000..f6fddb39
--- /dev/null
+++ b/TwoSum.java
@@ -0,0 +1,17 @@
+class TwoSum {
+    public int[] twoSum(int[] nums, int target) {
+
+        HashMap<Integer, Integer> valueDiffMap = new HashMap<>();
+
+        for(int i = 0; i < nums.length;i++) {
+            int diff = target - nums[i];
+
+            if(valueDiffMap.containsKey(diff)) {
+                return new int[]{valueDiffMap.get(diff), i};
+            } else {
+                valueDiffMap.put(nums[i], i);
+            }
+        }
+        return new int[] {-1, -1};
+    }
+}
\ No newline at end of file