wizards: use a character literal

Change-Id: I22d530e0feb9e3112b4f2e7548d6335235713247
Reviewed-on: https://gerrit.libreoffice.org/11360Reviewed-by: Thomas Arnhold <thomas@arnhold.org>
Tested-by: Thomas Arnhold <thomas@arnhold.org>

wizards/com/sun/star/wizards/common/FileAccess.java

@@ -515,7 +515,7 @@ public class FileAccess
      */
     private static String getExtension(String filename)
     {
-        int p = filename.indexOf(".");
+        int p = filename.indexOf('.');
         if (p == -1)
         {
             return PropertyNames.EMPTY_STRING;
@@ -526,7 +526,7 @@ public class FileAccess
             {
                 filename = filename.substring(p + 1);
             }
-            while ((p = filename.indexOf(".")) > -1);
+            while ((p = filename.indexOf('.')) > -1);
         }
         return filename;
     }
@@ -588,7 +588,7 @@ public class FileAccess
         }
         int pos = -1;
         int lastPos = 0;
-        while ((pos = url.indexOf("/", pos + 1)) > -1)
+        while ((pos = url.indexOf('/', pos + 1)) > -1)
         {
             lastPos = pos;
         }

wizards/com/sun/star/wizards/form/StyleApplier.java

@@ -210,17 +210,17 @@ public class StyleApplier
         if (index > -1)
         {
             String sPropName = PropertyNames.EMPTY_STRING;
-            while (((sPropName.indexOf("}") < 0) && (index < _sDataList.length - 1)))
+            while (((sPropName.indexOf('}') < 0) && (index < _sDataList.length - 1)))
             {
                 String scurline = _sDataList[index++];
                 if ((scurline.indexOf(_sPropertyDescription)) > 0)
                 {
-                    if (scurline.indexOf(":") > 0)
+                    if (scurline.indexOf(':') > 0)
                     {
                         String[] sPropList = JavaTools.ArrayoutofString(scurline, ":");
                         String sPropValue = sPropList[1];
                         sPropValue = sPropValue.trim();
-                        if (sPropValue.indexOf("#") > -1)
+                        if (sPropValue.indexOf('#') > -1)
                         {
                             sPropValue = JavaTools.replaceSubString(sPropValue, PropertyNames.EMPTY_STRING, PropertyNames.SEMI_COLON);
                             sPropValue = JavaTools.replaceSubString(sPropValue, PropertyNames.EMPTY_STRING, PropertyNames.SPACE);

wizards/com/sun/star/wizards/reportbuilder/layout/ReportBuilderLayouter.java

@@ -698,7 +698,7 @@ abstract public class ReportBuilderLayouter implements IReportBuilderLayouter
     {
         if (_sName.startsWith("field:["))
         {
-            int nCloseBrace = _sName.lastIndexOf("]");
+            int nCloseBrace = _sName.lastIndexOf(']');
             return _sName.substring(7, nCloseBrace).trim();
         }
         return _sName;