contains-duplicate solution

DaleStudy · Dec 14, 2024 · 19f6205 · 19f6205
1 parent 5acf128
commit 19f6205
Showing 1 changed file with 8 additions and 0 deletions.
diff --git a/contains-duplicate/sj.java b/contains-duplicate/sj.java
@@ -0,0 +1,8 @@
+import java.util.*;
+class Solution {
+    public boolean containsDuplicate(int[] nums) {
+        Set<Integer> numSet = Arrays.stream(nums).boxed().collect(Collectors.toSet());
+        if(numSet.size()!=nums.length) return true;
+        else return false;
+    }
+}