diff --git a/src/Notes-master/src/net/micode/notes/data/Contact.java b/src/Notes-master/src/net/micode/notes/data/Contact.java
index 4df1faf..27bc8bd 100644
--- a/src/Notes-master/src/net/micode/notes/data/Contact.java
+++ b/src/Notes-master/src/net/micode/notes/data/Contact.java
@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-// -*- coding: utf-8 -*-
+
 package net.micode.notes.data;
 
 import android.content.Context;
@@ -25,11 +25,11 @@ import android.util.Log;
 
 import java.util.HashMap;
 // change
-public class Contact { // ��ϵ��
+public class Contact { // 联系人
     private static HashMap<String, String> sContactCache;
     private static final String TAG = "Contact";
 
-    // �����ַ���CALLER_ID_SELECTION
+    // 定义字符串CALLER_ID_SELECTION
 
     private static final String CALLER_ID_SELECTION = "PHONE_NUMBERS_EQUAL(" + Phone.NUMBER
     + ",?) AND " + Data.MIMETYPE + "='" + Phone.CONTENT_ITEM_TYPE + "'"
@@ -38,20 +38,20 @@ public class Contact { // 
             + " FROM phone_lookup"
             + " WHERE min_match = '+')";
 
-    // ��ȡ��ϵ��
+    // 获取联系人
     public static String getContact(Context context, String phoneNumber) {
         if(sContactCache == null) {
             sContactCache = new HashMap<String, String>();
         }
 
-        // ����HashMap���Ƿ�����phoneNumber��Ϣ
+        // 查找HashMap中是否已有phoneNumber信息
         if(sContactCache.containsKey(phoneNumber)) {
             return sContactCache.get(phoneNumber);
         }
 
         String selection = CALLER_ID_SELECTION.replace("+",
                 PhoneNumberUtils.toCallerIDMinMatch(phoneNumber));
-        // �������ݿ���phoneNumber����Ϣ
+        // 查找数据库中phoneNumber的信息
         Cursor cursor = context.getContentResolver().query(
                 Data.CONTENT_URI,
                 new String [] { Phone.DISPLAY_NAME },
@@ -59,25 +59,25 @@ public class Contact { // 
                 new String[] { phoneNumber },
                 null);
 
-        // �ж���ѯ��� 
-        // moveToFirst()���ص�һ��
+        // 判定查询结果 
+        // moveToFirst()返回第一条
         if (cursor != null && cursor.moveToFirst()) {
             try {
-            // �ҵ������Ϣ
+            // 找到相关信息
                 String name = cursor.getString(0);
                 sContactCache.put(phoneNumber, name);
                 return name;
-            // �쳣
+            // 异常
             } catch (IndexOutOfBoundsException e) {
                 Log.e(TAG, " Cursor get string error " + e.toString());
                 return null;
             } finally {
                 cursor.close();
             }
-            // δ�ҵ������Ϣ
+            // 未找到相关信息
         } else {
             Log.d(TAG, "No contact matched with number:" + phoneNumber);
             return null;
         }
     }
-}
\ No newline at end of file
+}