solves #2413: Smallest Even Multiple in java

Author: anishLearnsToCode

README.md

@@ -767,7 +767,7 @@
 | 2399 | [Check Distances Between Same Letters](https://leetcode.com/problems/check-distances-between-same-letters)                                                             |                                                                              [![Java](assets/java.png)](src/CheckDistancesBetweenSameLetters.java)                                                                               |                                                                                                                                   |
 | 2404 | [Most Frequent Even Element](https://leetcode.com/problems/most-frequent-even-element)                                                                                 |                                                                                   [![Java](assets/java.png)](src/MostFrequentEvenElement.java)                                                                                   |                                                                                                                                   |
 | 2409 | [Count Days Spent Together](https://leetcode.com/problems/count-days-spent-together)                                                                                   |                                                                                   [![Java](assets/java.png)](src/CountDaysSpentTogether.java)                                                                                    |                                                                                                                                   |
-| 2413 | [Smallest Even Multiple](https://leetcode.com/problems/smallest-even-multiple)                                                                                         |                                                                                                                                                                                                                                  |                                                                                                                                   |
+| 2413 | [Smallest Even Multiple](https://leetcode.com/problems/smallest-even-multiple)                                                                                         |                                                                                    [![Java](assets/java.png)](src/SmallestEvenMultiple.java)                                                                                     |                                                                                                                                   |
 | 2418 | [Sort the People](https://leetcode.com/problems/sort-the-people)                                                                                                       |                                                                                                                                                                                                                                  |                                                                                                                                   |
 | 2423 | [Remove Letter To Equalize Frequency](https://leetcode.com/problems/remove-letter-to-equalize-frequency)                                                               |                                                                                                                                                                                                                                  |                                                                                                                                   |
 | 2427 | [Number of Common Factors](https://leetcode.com/problems/number-of-common-factors)                                                                                     |                                                                                                                                                                                                                                  |                                                                                                                                   |

src/SmallestEvenMultiple.java

@@ -0,0 +1,10 @@
+// https://leetcode.com/problems/smallest-even-multiple
+// T: O(1)
+// S: O(1)
+
+public class SmallestEvenMultiple {
+    public int smallestEvenMultiple(int n) {
+        if (n % 2 == 0) return n;
+        return n * 2;
+    }
+}