solves #2235: Add Two Integers in java

Author: anishLearnsToCode

Diff for: README.md

@@ -726,7 +726,7 @@
 | 2224 | [Minimum Number of Operations to Convert Time](https://leetcode.com/problems/minimum-number-of-operations-to-convert-time)                                             |                                                                           [![Java](assets/java.png)](src/MinimumNumberOfOperationsToConvertTime.java)                                                                            |                                                                                                                                   |
 | 2229 | 🔒 [Check if an array is consecutive](https://leetcode.com/problems/check-if-an-array-is-consecutive)                                                                  |                                                                                                                                                                                                                                  |                                                                                                                                   |
 | 2231 | [Largest Number After Digit Swaps by Parity](https://leetcode.com/problems/largest-number-after-digit-swaps-by-parity)                                                 |                                                                            [![Java](assets/java.png)](src/LargestNumberAfterDigitSwapsByParity.java)                                                                             |                                                                                                                                   |
-| 2235 | [Add Two Integers](https://leetcode.com/problems/add-two-integers)                                                                                                     |                                                                                                                                                                                                                                  |                                                                                                                                   |
+| 2235 | [Add Two Integers](https://leetcode.com/problems/add-two-integers)                                                                                                     |                                                                                       [![Java](assets/java.png)](src/AddTwoIntegers.java)                                                                                        |                                                                                                                                   |
 | 2236 | [Root Equals Sum of Children](https://leetcode.com/problems/root-equals-sum-of-children)                                                                               |                                                                                                                                                                                                                                  |                                                                                                                                   |
 | 2239 | [Find Closest Number to Zero](https://leetcode.com/problems/find-closest-number-to-zero)                                                                               |                                                                                                                                                                                                                                  |                                                                                                                                   |
 | 2243 | [Calculate Digit Sum of a String](https://leetcode.com/problems/calculate-digit-sum-of-a-string)                                                                       |                                                                                                                                                                                                                                  |                                                                                                                                   |

Diff for: src/AddTwoIntegers.java

@@ -0,0 +1,9 @@
+// https://leetcode.com/problems/add-two-integers
+// T: O(1)
+// S: O(1)
+
+public class AddTwoIntegers {
+    public int sum(int num1, int num2) {
+        return num1 + num2;
+    }
+}