private int findIndex ( String line ) { int index = - 1 ; if ( line == null ) { return index ; } String trimmedLine = line . trim ( ) ; int spaceIndex = trimmedLine . indexOf ( " " ) ; int tabIndex = trimmedLine . indexOf ( "\t" ) ; if ( spaceIndex != - 1 ) { if ( tabIndex != - 1 ) { if ( spaceIndex < tabIndex ) { index = spaceIndex ; } else { index = tabIndex ; } } else { index = spaceIndex ; } } else { index = tabIndex ; } return index ; }
find first space or tab as separator .