public static String convertToHumanFriendlyByteSize ( long size ) { if ( size < 1024 ) { return size + " B" ; } int z = ( 63 - Long . numberOfLeadingZeros ( size ) ) / 10 ; double d = ( double ) size / ( 1L << ( z * 10 ) ) ; String format = ( d % 1.0 == 0 ) ? "%.0f %sB" : "%.1f %sB" ; return String . format ( format , d , " KMGTPE" . charAt ( z ) ) ; }
Convert byte size into human friendly format .