feat(leetcode): add No.1108

Author: mickey0524

1108.Defanging-an-IP-Address.java

@@ -0,0 +1,24 @@
+// https://leetcode.com/problems/defanging-an-ip-address/
+//
+// algorithms
+// Easy (90.13%)
+// Total Accepted: 7,115
+// Total Submissions: 7,894
+// beats 100.0% of java submissions
+
+
+class Solution {
+    public String defangIPaddr(String address) {
+        StringBuilder sb = new StringBuilder();
+
+        for (char ch : address.toCharArray()) {
+            if (ch == '.') {
+                sb.append('[').append(ch).append(']');
+            } else {
+                sb.append(ch);
+            }
+        }
+
+        return sb.toString();
+    }
+}