diff --git a/app/src/main/java/net/micode/notes/ui/NoteItemData.java b/app/src/main/java/net/micode/notes/ui/NoteItemData.java
index bad034d..131866d 100644
--- a/app/src/main/java/net/micode/notes/ui/NoteItemData.java
+++ b/app/src/main/java/net/micode/notes/ui/NoteItemData.java
@@ -26,7 +26,10 @@ import net.micode.notes.data.Notes.NoteColumns;
 import net.micode.notes.tool.DataUtils;
 import net.micode.notes.ui.activities.NoteEditActivity;
 
-
+/**
+ * 便签列表子项
+ * 存储许多便签有关的数据
+ */
 public class NoteItemData {
     public static final String[] PROJECTION = new String[]{
             NoteColumns.ID,
@@ -82,7 +85,7 @@ public class NoteItemData {
         mAlertDate = cursor.getLong(ALERTED_DATE_COLUMN);
         mBgColorId = cursor.getInt(BG_COLOR_ID_COLUMN);
         mCreatedDate = cursor.getLong(CREATED_DATE_COLUMN);
-        mHasAttachment = (cursor.getInt(HAS_ATTACHMENT_COLUMN) > 0) ? true : false;
+        mHasAttachment = cursor.getInt(HAS_ATTACHMENT_COLUMN) > 0;
         mModifiedDate = cursor.getLong(MODIFIED_DATE_COLUMN);
         mNotesCount = cursor.getInt(NOTES_COUNT_COLUMN);
         mParentId = cursor.getLong(PARENT_ID_COLUMN);
@@ -111,8 +114,8 @@ public class NoteItemData {
     }
 
     private void checkPostion(Cursor cursor) {
-        mIsLastItem = cursor.isLast() ? true : false;
-        mIsFirstItem = cursor.isFirst() ? true : false;
+        mIsLastItem = cursor.isLast();
+        mIsFirstItem = cursor.isFirst();
         mIsOnlyOneItem = (cursor.getCount() == 1);
         mIsMultiNotesFollowingFolder = false;
         mIsOneNoteFollowingFolder = false;