diff --git a/Week_08/G20190343020268/0268_Week 08(java)2 b/Week_08/G20190343020268/0268_Week 08(java)2
new file mode 100644
index 00000000..eef9a11c
--- /dev/null
+++ b/Week_08/G20190343020268/0268_Week 08(java)2	
@@ -0,0 +1,30 @@
+//5. 最长回文子串
+class Solution {
+	public int sub(String s, int left, int right){
+      while(left >= 0 && right < s.length() && s.charAt(left) == s.charAt(right)){
+            left--;
+            right++;
+        }
+        int length = right - left - 1;
+        return length;
+    }
+    
+    public String longestPalindrome(String s) {
+        int len = s.length();
+        if(len <= 1) return s; 
+        int max = 0;
+        String ret = null;
+        for(int i = 0; i < len; i++){
+            int m = sub(s, i, i);
+            int n = sub(s, i, i + 1);
+            int length = Math.max(m, n);
+            if(length > max){
+                int L = i - (length - 1) / 2; 
+                int R = i + length / 2;
+                max = length;
+                ret = s.substring(L, R + 1);
+            }
+        }
+        return ret;
+    }
+}