java - Possible to 'look ahead' in a StreamTokenizer? -

working on parser, , if detect keyword want call function , send next token (we can assume input proper , correct).

what tried below not work because cannot dereference int.

what trying:

        boolean eof = false;         do{             int = 0;             int token = st.nexttoken();             switch (token){                 case streamtokenizer.tt_eof:                     system.out.println("eof");                     eof = true;                     break;                 case streamtokenizer.tt_eol:                     system.out.println("eol");                     break;                 case streamtokenizer.tt_word:                     //system.out.println("word: " + st.sval);                     if (st.sval.equals("start")){                         system.out.println("---start----");                         system.out.println(start(st.nexttoken().sval)); // ahead                     }                     break;                 case streamtokenizer.tt_number:                     system.out.println("number: " + st.nval);                     break;                 case '\'':                     system.out.println("quoted value " + st.sval);                     break;                 default:                     system.out.println((char) token + " encountered.");                     break;              }         } while (!eof);      } catch (exception ex){         ex.printstacktrace();     } }  public static string start(string in){     string out = "<start> " + in + " </start>";     return out; } 

input

start 'begin here'  

desired output

----start---- <start> begin here </start> 

the call st.nexttoken() returns int, hence compile error on st.nexttoken().sval. want instead:

system.out.println("---start----"); st.nexttoken(); system.out.println(start(st.sval)); 

of course, assumes nexttoken() returned '; more robust do:

system.out.println("---start----"); if(st.nexttoken() == '\'') {    system.out.println(start(st.sval)); } else {    // handle error    system.err.println("expected 'string' after start"); }