question: @ Override public String toString ( ) { StringBuilder result = new StringBuilder ( ) ; result . append ( "Token[" ) ; switch ( ttype ) { case TT_EOF : result . append ( "EOF" ) ; break ; case TT_EOL : result . append ( "EOL" ) ; break ; case TT_NUMBER : result . append ( "n=" ) ; result . append ( nval ) ; break ; case TT_WORD : result . append ( sval ) ; break ; default : if ( ttype == TT_UNKNOWN || tokenTypes [ ttype ] == TOKEN_QUOTE ) { result . append ( sval ) ; } else { result . append ( '\'' ) ; result . append ( ( char ) ttype ) ; result . append ( '\'' ) ; } } result . append ( "], line " ) ; result . append ( lineNumber ) ; return result . toString ( ) ; }
target:  Returns the state of this tokenizer in a readable format.