diff --git a/designer/src/com/fr/grid/selection/CellSelection.java b/designer/src/com/fr/grid/selection/CellSelection.java
index ea3234e85f..31a73cc622 100644
--- a/designer/src/com/fr/grid/selection/CellSelection.java
+++ b/designer/src/com/fr/grid/selection/CellSelection.java
@@ -36,6 +36,7 @@ import com.fr.report.cell.cellattr.CellGUIAttr;
 import com.fr.report.elementcase.TemplateElementCase;
 import com.fr.stable.ColumnRow;
 import com.fr.stable.StableUtils;
+import com.fr.stable.StringUtils;
 import com.fr.stable.unit.FU;
 
 import javax.swing.*;
@@ -242,10 +243,10 @@ public class CellSelection extends Selection {
         }
         FU [] columnWidth = new FU[columnSpan];
         FU [] rowHeight = new FU[rowSpan];
-        for(int i = 0; i < columnSpan; i++){
+        for (int i = 0; i < columnSpan; i++){
             columnWidth[i] = ec.getColumnWidth(this.column + i);
         }
-        for(int j = 0; j < rowSpan; j++){
+        for (int j = 0; j < rowSpan; j++){
             rowHeight[j] = ec.getRowHeight(this.row + j);
         }
         transferable.addObject(new CellElementsClip(this.columnSpan, this.rowSpan, columnWidth, rowHeight, list.toArray(new TemplateCellElement[list.size()])));
@@ -257,6 +258,7 @@ public class CellSelection extends Selection {
      * @param ePane 区域
      * @return  成功返回true
      */
+    @Override
     public boolean pasteCellElementsClip(CellElementsClip ceClip, ElementCasePane ePane) {
         TemplateElementCase ec = ePane.getEditingElementCase();
         CellSelection cs = ceClip.pasteAt(ec, column, row);
@@ -273,6 +275,7 @@ public class CellSelection extends Selection {
      * @param ePane  区域
      * @return 成功返回true
      */
+    @Override
     public boolean pasteString(String str, ElementCasePane ePane) {
         // 主要需要处理Excel当中的类型.
         // Excel 的剪贴板格式
@@ -297,7 +300,7 @@ public class CellSelection extends Selection {
                         ec.setCellValue(column + c, row + r, number);
                     } else {
                         // alex:对于100,000,000这种数值,先做一个取巧的解决方法
-                        String newStr = Utils.replaceAllString(lineTextArray[c], ",", "");
+                        String newStr = Utils.replaceAllString(lineTextArray[c], ",", StringUtils.EMPTY);
                         number = Utils.string2Number(newStr);
                         if (number != null) {
                             ec.setCellValue(column + c, row + r, Utils.string2Number(newStr));
@@ -320,6 +323,7 @@ public class CellSelection extends Selection {
      * @param ePane 区域
      * @return 成功返回true
      */
+    @Override
     public boolean pasteOtherType(Object ob, ElementCasePane ePane) {
         TemplateElementCase ec = ePane.getEditingElementCase();
 
@@ -341,6 +345,7 @@ public class CellSelection extends Selection {
      * @param ePane 区域
      * @return 是则返回true
      */
+    @Override
     public boolean canMergeCells(ElementCasePane ePane) {
 
         return !this.isSelectedOneCell(ePane);
@@ -351,6 +356,7 @@ public class CellSelection extends Selection {
      * @param ePane 区域
      * @return 成功返回true
      */
+    @Override
     public boolean mergeCells(ElementCasePane ePane) {
 
         TemplateElementCase ec = ePane.getEditingElementCase();
@@ -373,6 +379,7 @@ public class CellSelection extends Selection {
      * @param ePane 区域
      * @return 是则返回true
      */
+    @Override
     public boolean canUnMergeCells(ElementCasePane ePane) {
         TemplateElementCase ec = ePane.getEditingElementCase();
 
@@ -393,6 +400,7 @@ public class CellSelection extends Selection {
      * @param ePane 区域
      * @return 成功返回true
      */
+    @Override
     public boolean unMergeCells(ElementCasePane ePane) {
         TemplateElementCase ec = ePane.getEditingElementCase();
 
@@ -483,17 +491,18 @@ public class CellSelection extends Selection {
      * @param ePane  区域
      * @return 成功返回true
      */
+    @Override
     public boolean clear(Clear type, ElementCasePane ePane) {
         TemplateElementCase ec = ePane.getEditingElementCase();
         boolean isClear = true;
         int cellRectangleCount = getCellRectangleCount();
         for (int rect = 0; rect < cellRectangleCount; rect++) {
-            isClear = clearCell(type, ec, rect);
+            isClear = hasclearCell(type, ec, rect);
         }
         return isClear;
     }
 
-    private boolean clearCell(Clear type, TemplateElementCase ec, int rect) {
+    private boolean hasclearCell(Clear type, TemplateElementCase ec, int rect) {
         List<CellElement> removeElementList = new ArrayList<CellElement>();
         Rectangle cellRectangle = getCellRectangle(rect);
         column = cellRectangle.x;
@@ -541,6 +550,8 @@ public class CellSelection extends Selection {
                     ((TemplateCellElement) element).setWidget(null);
                 }
                 break;
+            default:
+                break;
         }
         return true;
     }
@@ -608,6 +619,7 @@ public class CellSelection extends Selection {
      * @param ePane 区域
      * @return 成功返回true
      */
+    @Override
     public boolean triggerDeleteAction(ElementCasePane ePane) {
         final TemplateElementCase ec = ePane.getEditingElementCase();
         final RowColumnPane rcPane = new RowColumnPane();
@@ -638,6 +650,7 @@ public class CellSelection extends Selection {
      * @param cr 行列
      * @return 包含返回true
      */
+    @Override
     public boolean containsColumnRow(ColumnRow cr) {
         return new Rectangle(column, row, columnSpan, rowSpan).contains(cr.column, cr.row);
     }
@@ -678,7 +691,7 @@ public class CellSelection extends Selection {
         if (cellElement != null && b) {
             value = cellElement.getValue();
         }
-        value = value == null ? "" : value;
+        value = value == null ? StringUtils.EMPTY : value;
         //之前是少了个bigInteger,刚kunsnat又发现少了个bigDecimal，数字类型的都用stringEditor，没必要那个样子
         QuickEditor editor = ActionFactory.getCellEditor((value instanceof Number) ? (Number.class) : (value.getClass()));
         if (editor == null) {
diff --git a/designer_base/src/com/fr/design/menu/KeySetUtils.java b/designer_base/src/com/fr/design/menu/KeySetUtils.java
index 01022433e6..8166c9f36b 100644
--- a/designer_base/src/com/fr/design/menu/KeySetUtils.java
+++ b/designer_base/src/com/fr/design/menu/KeySetUtils.java
@@ -384,7 +384,7 @@ public class KeySetUtils {
 
         @Override
         public String getMenuName() {
-            return "EXCEL"+Inter.getLocText("FR-Designer_ExportAndOutput");
+            return "EXCEL" + Inter.getLocText("FR-Designer_ExportAndOutput");
         }
 
         @Override