我是新手，很多地方很不明白，常犯低级的错误，请大家指教！谢谢！

源代码：




Untitled








你的定单号为：,请随时查询定单!谢谢您的购买，再见！



错误信息：
Full compiler error(s):
F:MyWebWEB-INF_tmp_war_myserver_myserver_MyWebjsp_servlet_project1_custom__save.java:124: variable customorderid might not have been initialized
            SQL="insert into customorder(customorderid,customid,totalmoney,orderdate,productid,quantity)VALUES('"+customorderid+"','"+user+"','"+totalmoney+"','"+orderdate+"','"+productid+"','"+quantity+"',)"; //[ /project1/custom/save.jsp; Line: 35]
                                                                                                                  ^
F:MyWebWEB-INF_tmp_war_myserver_myserver_MyWebjsp_servlet_project1_custom__save.java:124: variable totalmoney might not have been initialized
            SQL="insert into customorder(customorderid,customid,totalmoney,orderdate,productid,quantity)VALUES('"+customorderid+"','"+user+"','"+totalmoney+"','"+orderdate+"','"+productid+"','"+quantity+"',)"; //[ /project1/custom/save.jsp; Line: 35]
                                                                                                                                                 ^
Note: F:MyWebWEB-INF_tmp_war_myserver_myserver_MyWebjsp_servlet_project1_custom__save.java uses or overrides a deprecated API.
Note: Recompile with -deprecation for details.
2 errors

为什么说我的costomorderid,totalmoney可能没有被初始化阿？很不明白。谢谢！

可以呀
if(rs2.next()){
float totalmoney1=(float)((float)rs2.getInt("price")*(new Integer("quantity")).intValue());
totalmoney=totalmoney+totalmoney1;
}else totalmoney=0;
这下子可以了吧，呵呵

变量定义时直接复值为NULL，这样就初始化了，试试