diff --git a/solution/0800-0899/0846.Hand of Straights/README.md b/solution/0800-0899/0846.Hand of Straights/README.md
index 014f8d42ac3ef..0f534a822da38 100644
--- a/solution/0800-0899/0846.Hand of Straights/README.md	
+++ b/solution/0800-0899/0846.Hand of Straights/README.md	
@@ -65,7 +65,33 @@
 <!-- 这里可写当前语言的特殊实现逻辑 -->
 
 ```java
-
+class Solution {
+    public boolean isNStraightHand(int[] hand, int groupSize) { 
+        if (hand.length % groupSize != 0) {
+            return false;
+        }
+        TreeMap<Integer, Integer> mp = new TreeMap<>();
+        for (int item : hand) {
+            mp.put(item, mp.getOrDefault(item, 0) + 1);
+        }
+
+        while (mp.size() > 0) {
+            int start = mp.firstKey();
+            for (int i = start; i < start + groupSize; i++) {
+                if (!mp.containsKey(i)) {
+                    return false;
+                }
+                int time = mp.get(i);
+                if (time == 1) {
+                    mp.remove(i);
+                } else {
+                    mp.replace(i, time - 1);
+                }
+            }
+        }
+        return true;
+    }
+}
 ```
 
 ### **...**
diff --git a/solution/0800-0899/0846.Hand of Straights/README_EN.md b/solution/0800-0899/0846.Hand of Straights/README_EN.md
index 4b05df28185b6..3d90a2e1904e2 100644
--- a/solution/0800-0899/0846.Hand of Straights/README_EN.md	
+++ b/solution/0800-0899/0846.Hand of Straights/README_EN.md	
@@ -53,7 +53,33 @@
 ### **Java**
 
 ```java
-
+class Solution {
+    public boolean isNStraightHand(int[] hand, int groupSize) { 
+        if (hand.length % groupSize != 0) {
+            return false;
+        }
+        TreeMap<Integer, Integer> mp = new TreeMap<>();
+        for (int item : hand) {
+            mp.put(item, mp.getOrDefault(item, 0) + 1);
+        }
+
+        while (mp.size() > 0) {
+            int start = mp.firstKey();
+            for (int i = start; i < start + groupSize; i++) {
+                if (!mp.containsKey(i)) {
+                    return false;
+                }
+                int time = mp.get(i);
+                if (time == 1) {
+                    mp.remove(i);
+                } else {
+                    mp.replace(i, time - 1);
+                }
+            }
+        }
+        return true;
+    }
+}
 ```
 
 ### **...**
diff --git a/solution/0800-0899/0846.Hand of Straights/Solution.java b/solution/0800-0899/0846.Hand of Straights/Solution.java
new file mode 100644
index 0000000000000..f86da00f5f736
--- /dev/null
+++ b/solution/0800-0899/0846.Hand of Straights/Solution.java	
@@ -0,0 +1,27 @@
+class Solution {
+    public boolean isNStraightHand(int[] hand, int groupSize) {
+        if (hand.length % groupSize != 0) {
+            return false;
+        }
+        TreeMap<Integer, Integer> mp = new TreeMap<>();
+        for (int item : hand) {
+            mp.put(item, mp.getOrDefault(item, 0) + 1);
+        }
+
+        while (mp.size() > 0) {
+            int start = mp.firstKey();
+            for (int i = start; i < start + groupSize; i++) {
+                if (!mp.containsKey(i)) {
+                    return false;
+                }
+                int time = mp.get(i);
+                if (time == 1) {
+                    mp.remove(i);
+                } else {
+                    mp.replace(i, time - 1);
+                }
+            }
+        }
+        return true;
+    }
+}
\ No newline at end of file