How can a Java method returns more than one value

One of my friends asks me this question, can a java method returns than more value?
- you can achieve this task through a work around

Consider this example

    public static java.math.BigDecimal pmsGetActRetB(java.math.BigDecimal P_ID, java.math.BigDecimal P_HON_ID,
                                                     oracle.jbo.domain.Date P_DATE,
                                                     java.math.BigDecimal P_NAV[]) throws java.sql.SQLException {
        java.math.BigDecimal __jPt_result = null;
        CallableStatement __sJT_st = null;
        try {
       
                    String theSqlTS =
                        "BEGIN :1 := IAIGC.\"PMS_RET_PKG\".PMS_GET_ACT_RET_B(\n       :2  ,\n       :3  ,\n       :4  ,\n       :5  )  \n; END;";
                   
                    __sJT_st.registerOutParameter(1, oracle.jdbc.OracleTypes.NUMERIC);
                    __sJT_st.registerOutParameter(5, oracle.jdbc.OracleTypes.NUMERIC);
                    // set IN parameters
                    __sJT_st.setBigDecimal(2, P_ID);
                    __sJT_st.setBigDecimal(3, P_HON_ID);
                    __sJT_st.setObject(4, P_DATE);
                    __sJT_st.setBigDecimal(5, P_NAV[0]);
                    // execute statement
                    __sJT_st.executeUpdate();
                    // retrieve OUT parameters
                    __jPt_result = __sJT_st.getBigDecimal(1);
                    P_NAV[0] = __sJT_st.getBigDecimal(5);
                } finally {
                    __sJT_st.close();
                }
         
        return __jPt_result;
    }

This example call a database function that contains out parameter and return a number value too.

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