Update test.java

src/solution/Solution.java

@@ -148,4 +148,8 @@ public class Solution {
         }
         return strs[0];
     }
+
+    public static ListNode mergeTwoLists(ListNode list1, ListNode list2) {
+
+    }
 }

src/solution/test.java

@@ -21,10 +21,7 @@ public class test {
 //        System.out.println(result);
 //        int m = Solution.majorityElement(nums1);
 //        System.out.println(m);
-        HashMap<Integer,Integer> map = new HashMap<>();
+
-        HashSet<Integer> set1 = new HashSet<>();
-        new LinkedHashSet<>();
-        new TreeSet<>();
     }
 
 }