public String generateOutput() throws Exception {

     String encoding = "utf-8";

    // (1) Create a new instance of X12 Interchange Envelope OTD
    com.stc.x12env.runtime.ic.ICEnv icEnvOtd = new com.stc.x12env.runtime.ic.ICEnv();

    // (2) Set delimiters in the Interchange Envelope OTD
    icEnvOtd.setSegmentTerminator(’~’);
    icEnvOtd.setElementSeparator(’+’);
    icEnvOtd.setSubelementSeparator(’^’);

    // (3) Create a new ISA segment object
    com.stc.x12env.runtime.ic.ISA isaSegment = new com.stc.x12env.runtime.ic.ISA();

    // (4) Populate the fields inside the ISA
    isaSegment.setEI01_1_AuthInfoQual("00");
    isaSegment.setEI02_2_AuthInfo("          ");
    isaSegment.setEI03_3_SecuInfoQual("01");
    isaSegment.setEI04_4_SecuInfo("          ");
    isaSegment.setEI05_5_InteIDQual("13");
    isaSegment.setEI06_6_InteSendID("3105451234");
    isaSegment.setEI05_7_InteIDQual("16");
    isaSegment.setEI07_8_InteReceID("123456789");
    com.stc.runtime.dt.Date date = com.stc.otd.runtime.edi.EdiDate.parse8("20070115");
    isaSegment.setEI08_9_InteDate(date);
    com.stc.runtime.dt.Time time = com.stc.otd.runtime.edi.EdiTime.parse4("1647");
    isaSegment.setEI09_10_InteTime(time);
    isaSegment.setEI10_11_InteContStanIden("U");
    isaSegment.setEI11_12_InteContVersNumb("00301");
    isaSegment.setEI12_13_InteContNumb(905);
    isaSegment.setEI14_15_UsagIndi("T");
    isaSegment.setEI13_14_AcknRequ("1");
    isaSegment.setEI15_16_CompElemSepa(":");

    // (5) Set the rest of delimiters inside the ISA segment object
    isaSegment.setSegmentTerminator(’!’);
    isaSegment.setElementSeparator(’*’);

    // (6) Set the populated ISA segment object to the Interchange    
    //     Envelope OTD
    icEnvOtd.setISA_InteContHead(isaSegment);

    // (7) Get the IEA segment object inside the Interchange
    //     Envelope OTD; also creates the IEA segment instance
    com.stc.x12env.runtime.ic.IEA ieaSegment = icEnvOtd.getIEA_InteContTrai();

    // (8) Populate the fields inside the IEA
    ieaSegment.setEI12_2_InteContNumb(905);
    ieaSegment.setEI16_1_NumbOfInclFuncGrou(1);

    // (9) Provide the Functional Group data
    String funcGrp = " GS*FA*123*321*927003*1203*1112*T*004010!ST*997*0001!AK1*FA*1!
    AK2*997*0001!AK3*BEG*31**1!AK4*12:4*479*1*98382LKA!AK5*A*1*3*5*1*3!
    AK9*A*0*433*500006*1*2*5*1*2!SE*8*0001!GE*1*1112!";

    // (10) Set the functional group data inside the Interchange    
    //      Envelope OTD
     icEnvOtd.setFunctionalGroup(0, funcGrp.getBytes(encoding));

    // (11) Invoke API to generate serialized byte array output
    //      of the Interchange Envelope OTD
    byte[] results = icEnvOtd.marshalToBytes();

    // (12) return as a string
    return new String(results, encoding);

     }

ISA*00*          *01*          *13*3105451234     *16*123456789
*051215*1647*U*00301*000000905*1*T*:!
 GS*FA*123*321*927003*1203*1112*T*004010!ST*997*0001!AK1*FA*1!AK2*9
97*0001!AK3*BEG*31**1!AK4*12:4*479*1*98382LKA!AK5*A*1*3*5*1*3!AK9*
A*0*433*500006*1*2*5*1*2!SE*8*0001!GE*1*1112!IEA*1*000000905!