code: public static String getFileNameWithoutExtenxion(String fileName) {
  		if (fileName==null){
  			return null;
  		} else {
  			int number=fileName.lastIndexOf('.');
  			
  			if (number>=0){
  				return fileName.substring(0, number);
  			} else {
  				return fileName;
  			}
  		}		
  	}
docs: If the file is like name.extension This function returns name
  for filename=name. this returns name
  for filemane=name  this retuns name;
  for filemane=.extension  this retuns "";
  for filemane=.  this retuns "";
  
  @param fileNameAndPath
  @return