diff --git a/src/test/java/com/ossez/lang/tutorial/tests/lintcode/LintCode1480DotProductTest.java b/src/test/java/com/ossez/lang/tutorial/tests/lintcode/LintCode1480DotProductTest.java
index fb62a811a0..e4ab2356ee 100644
--- a/src/test/java/com/ossez/lang/tutorial/tests/lintcode/LintCode1480DotProductTest.java
+++ b/src/test/java/com/ossez/lang/tutorial/tests/lintcode/LintCode1480DotProductTest.java
@@ -27,9 +27,23 @@ public class LintCode1480DotProductTest {
 	@Test
 	public void testMain() {
 		logger.debug("BEGIN");
-		int t = 87;
-		int[] dur = { 20, 25, 19, 37 };
-		// Write your code here
+		int[] A = { 1, 1, -1 };
+		int[] B = { 2147483647, 1, 3 };
+
+		int retStatus = 0;
+
+		// LENGTH CHECK
+		if (A.length == 0 || B.length == 0 || A.length != B.length)
+			retStatus = -1;
+
+		// ADDED
+		if (retStatus != -1) {
+			for (int i = 0; i < A.length; i++) {
+				retStatus = retStatus + A[i] * B[i];
+			}
+		}
+
+		System.out.println(retStatus);
 	}
 
 }