Java---folder and file operations

/*** Get folder size *@paramFile File instance *@returnLong*/        Public Static Longgetfoldersize (Java.io.File File) {LongSize = 0; Try{java.io.file[] fileList=File.listfiles ();  for(inti = 0; i < filelist.length; i++)               {                   if(Filelist[i].isdirectory ()) {size= size +getfoldersize (Filelist[i]); }Else{size= size +filelist[i].length (); }               }        } Catch(Exception e) {//TODO auto-generated Catch blockE.printstacktrace (); }          //return size/1048576;         returnsize; }          /*** Delete files and directories in the specified directory *@paramDeletethispath *@paramfilepath *@return        */        Public voidDeletefolderfile (String FilePath,BooleanDeletethispath) {           if(!Textutils.isempty (FilePath)) {               Try{File File=NewFile (FilePath); if(File.isdirectory ()) {//Working with CatalogsFile files[] =File.listfiles ();  for(inti = 0; i < files.length; i++) {deletefolderfile (Files[i].getabsolutepath (),true); }                    }                   if(Deletethispath) {if(!file.isdirectory ()) {//if it is a file, deleteFile.delete (); } Else{//Catalogue                   if(File.listfiles (). Length = = 0) {//there is no file or directory under the directory, deleteFile.delete (); }                       }                   }            } Catch(Exception e) {//TODO auto-generated Catch blockE.printstacktrace (); }           }       }      /*** Format Unit *@paramSize *@return     */     Public StaticString Getformatsize (Doublesize) {        Doublekilobyte = size/1024; if(Kilobyte < 1) {            returnSize + "Byte (s)"; }                Doublemegabyte = kilobyte/1024; if(Megabyte < 1) {BigDecimal result1=NewBigDecimal (double.tostring (kilobyte)); returnResult1.setscale (2, bigdecimal.round_half_up). Toplainstring () + "KB"; }                DoubleGigaByte = megabyte/1024; if(GigaByte < 1) {BigDecimal result2=NewBigDecimal (double.tostring (megabyte)); returnResult2.setscale (2, bigdecimal.round_half_up). Toplainstring () + "MB"; }                Doubleterabytes = gigabyte/1024; if(Terabytes < 1) {BigDecimal RESULT3=NewBigDecimal (double.tostring (gigaByte)); returnResult3.setscale (2, bigdecimal.round_half_up). Toplainstring () + "GB"; } BigDecimal RESULT4=NewBigDecimal (terabytes); returnResult4.setscale (2, bigdecimal.round_half_up). Toplainstring () + "TB"; }

Java---folder and file operations