diff --git "a/problems/0501.\344\272\214\345\217\211\346\220\234\347\264\242\346\240\221\344\270\255\347\232\204\344\274\227\346\225\260.md" "b/problems/0501.\344\272\214\345\217\211\346\220\234\347\264\242\346\240\221\344\270\255\347\232\204\344\274\227\346\225\260.md"
index d2326d6703..66be790fbb 100644
--- "a/problems/0501.\344\272\214\345\217\211\346\220\234\347\264\242\346\240\221\344\270\255\347\232\204\344\274\227\346\225\260.md"
+++ "b/problems/0501.\344\272\214\345\217\211\346\220\234\347\264\242\346\240\221\344\270\255\347\232\204\344\274\227\346\225\260.md"
@@ -345,6 +345,40 @@ public:
 
 Java：
 
+暴力法
+```java
+class Solution {
+	public int[] findMode(FindModeInBinarySearchTree.TreeNode root) {
+		Map<Integer, Integer> map = new HashMap<>();
+		List<Integer> list = new ArrayList<>();
+		if (root == null) return list.stream().mapToInt(Integer::intValue).toArray();
+		// 获得频率 Map
+		searchBST(root, map);
+		List<Map.Entry<Integer, Integer>> mapList = map.entrySet().stream()
+				.sorted((c1, c2) -> c2.getValue().compareTo(c1.getValue()))
+				.collect(Collectors.toList());
+		list.add(mapList.get(0).getKey());
+		// 把频率最高的加入 list
+		for (int i = 1; i < mapList.size(); i++) {
+			if (mapList.get(i).getValue() == mapList.get(i - 1).getValue()) {
+				list.add(mapList.get(i).getKey());
+			} else {
+				break;
+			}
+		}
+		return list.stream().mapToInt(Integer::intValue).toArray();
+	}
+
+	void searchBST(FindModeInBinarySearchTree.TreeNode curr, Map<Integer, Integer> map) {
+		if (curr == null) return;
+		map.put(curr.val, map.getOrDefault(curr.val, 0) + 1);
+		searchBST(curr.left, map);
+		searchBST(curr.right, map);
+	}
+
+}
+```
+
 ```Java
 class Solution {
     ArrayList<Integer> resList;