diff --git a/src/main/java/xyz/joethei/studium/algodat/DuplicatesList.java b/src/main/java/xyz/joethei/studium/algodat/DuplicatesList.java
index 7da02c3..eb82d3d 100644
--- a/src/main/java/xyz/joethei/studium/algodat/DuplicatesList.java
+++ b/src/main/java/xyz/joethei/studium/algodat/DuplicatesList.java
@@ -1,8 +1,8 @@
 package xyz.joethei.studium.algodat;
 
-import java.time.Instant;
-import java.util.*;
-import java.util.stream.Collectors;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Random;
 
 public class DuplicatesList {
 
@@ -19,7 +19,7 @@ public class DuplicatesList {
     }
 
     public static void main(String[] args) {
-        List<Integer> list = new ArrayList<Integer>();
+        List<Integer> list = new ArrayList<>();
         Random random = new Random();
         for (int i = 0; i < 10000; i++) {
             list.add(random.nextInt(10));