feat: add solutions to lc problem: No.2264 (doocs#816)

No.2264.Largest 3-Same-Digit Number in String

Author: chriy

solution/2200-2299/2264.Largest 3-Same-Digit Number in String/README.md

@@ -77,7 +77,17 @@
 <!-- 这里可写当前语言的特殊实现逻辑 -->
 
 ```java
-
+class Solution {
+    public String largestGoodInteger(String num) {
+        for (int i = 9; i >= 0; i--) {
+            String ret = String.valueOf(i).repeat(3);
+            if (num.contains(ret)) {
+                return ret;
+            }
+        }
+        return "";
+    }
+}
 ```
 
 ### **TypeScript**

solution/2200-2299/2264.Largest 3-Same-Digit Number in String/README_EN.md

@@ -67,7 +67,17 @@
 ### **Java**
 
 ```java
-
+class Solution {
+    public String largestGoodInteger(String num) {
+        for (int i = 9; i >= 0; i--) {
+            String ret = String.valueOf(i).repeat(3);
+            if (num.contains(ret)) {
+                return ret;
+            }
+        }
+        return "";
+    }
+}
 ```
 
 ### **TypeScript**

solution/2200-2299/2264.Largest 3-Same-Digit Number in String/Solution.java

@@ -0,0 +1,11 @@
+class Solution {
+    public String largestGoodInteger(String num) {
+        for (int i = 9; i >= 0; i--) {
+            String ret = String.valueOf(i).repeat(3);
+            if (num.contains(ret)) {
+                return ret;
+            }
+        }
+        return "";
+    }
+}