Error!Urgent!Pls Help.....Thank You

Question

I had the following error with the code below.......anyone pls help me ..... urgent.....I will be really appreciate it......Thank you in advanced.....
I had created two statement,.....one is to select the value of Leave_Reason from a table and store it in the String Leave_Reason after that I need to insert the Leave_Reason variable's value together with other value which input from a form in the previous page....into another table....
But I dun know why I encountered the error below....anyone pls help.....really urgent.....I had tried to solve it for two days already,,,,,
org.apache.jasper.JasperException: Unable to compile class for JSP
An error occurred at line: 86 in the jsp file: /SilkAir/leave_request.jsp
Generated servlet error:
[javac] Compiling 1 source file
C:\Tomcat 4.1\work\Standalone\localhost\_\SilkAir\leave_request_jsp.java:315: cannot resolve symbol
symbol : variable Leave_Reason
location: class org.apache.jsp.leave_request_jsp
String Query = "INSERT INTO Leave_Application (Emp_Num, Leave_ID, Apply_Date, Leave_Date, Leave_Reason, Leave_Applied, Leave_Status) VALUES ('" + Emp_Num + "', '" + Leave_ID + "', '" Apply_Date "', '" + Leave_Date + "', '" + Leave_Reason + "', '" + Day + "', 'Pending')";
^
1 error
     at org.apache.jasper.compiler.DefaultErrorHandler.javacError(DefaultErrorHandler.java:130)
     at org.apache.jasper.compiler.ErrorDispatcher.javacError(ErrorDispatcher.java:293)
     at org.apache.jasper.compiler.Compiler.generateClass(Compiler.java:340)
     at org.apache.jasper.compiler.Compiler.compile(Compiler.java:352)
     at org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:474)
     at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:184)
     at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:295)
     at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:241)
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
     at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:247)
     at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:193)
     at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:260)
     at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
     at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
     at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
     at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
     at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
     at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
     at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
     at org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2415)
     at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:180)
     at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
     at org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.java:170)
     at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)
     at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:172)
     at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)
     at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
     at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
     at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:174)
     at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
     at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
     at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
     at org.apache.coyote.tomcat4.CoyoteAdapter.service(CoyoteAdapter.java:223)
     at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:432)
     at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:386)
     at org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:534)
     at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:530)
     at java.lang.Thread.run(Thread.java:536)
<request.jsp>
<%@page import="java.sql.*"%>
<%@page import="java.util.Date"%>
<%@page import="java.text.SimpleDateFormat"%>
<html>
<head>
<title></title>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
</head>
<%
String username = (String)session.getAttribute("username");
%>
<%
//define connection
Connection con = null;
try{
//get the class
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
//get the connection
     con = DriverManager.getConnection("jdbc:odbc:Database","","");
//please catch your exceptions!
catch(Exception e){
     out.println(e.getMessage());
// form data
String Emp= request.getParameter("txtEmp");
String Leave_ID = request.getParameter("txtReason");
java.text.SimpleDateFormat sdf = new java.text.SimpleDateFormat("yyyy/MM/dd");
String LeaveDate = request.getParameter("txtLeaveDate");
java.util.Date dateU = sdf.parse(LeaveDate);
java.sql.Date Leave_Date = new java.sql.Date(dateU.getTime());
String Day = request.getParameter("txtDay");
java.text.SimpleDateFormat rd = new java.text.SimpleDateFormat("yyyy/MM/dd");
String ApplyDate = request.getParameter("txtApplyDate");
java.util.Date dateR = rd.parse(ApplyDate);
java.sql.Date Apply_Date = new java.sql.Date(dateR.getTime());
// query statement
ResultSet rs=null;
Statement SQLStatement = con.createStatement();
Statement stm = con.createStatement();
String query = "SELECT DISTINCT LeaveType FROM Leave WHERE Leave_ID ='"+Leave_ID+"'";
rs = stm.executeQuery(query);
if(rs.next())
String Leave_Reason = rs.getString("LeaveType");
else
{    out.println("no results found");
rs.close();
stm.close();
String Query = "INSERT INTO Application (Emp, Leave_ID, Apply_Date, Leave_Date, Leave_Reason, Leave_Applied, Leave_Status) VALUES ('" + Emp_Num + "', '" + Leave_ID + "', '" Apply_Date "', '" + Leave_Date + "', '" + Leave_Reason + "', '" + Day + "', 'Pending')";
// get result code
int SQLStatus = SQLStatement.executeUpdate(Query);
     if(SQLStatus != 0)
     out.println("post successfully.");
     else
     out.println("Problem encountered");
// close connection
SQLStatement.close();
con.close();
%>
</body>
</html>

Answer 1

if(rs.next())
String Leave_Reason = rs.getString("LeaveType");
else
{ out.println("no results found");
rs.close();
stm.close();
String Query = "INSERT INTO Application (Emp, Leave_ID, Apply_Date, Leave_Date, Leave_Reason, Leave_Applied, Leave_Status) VALUES ('" + Emp_Num + "', '" + Leave_ID + "', '" Apply_Date "', '" + Leave_Date + "', '" + Leave_Reason + "', '" + Day + "', 'Pending')";
The Problem is that the variable Leave_Reason is declared as a local variable inside a if block. So the scope of the variable is not visible outside the if block...
Try using something like
String Leave_Reason = "";
if(rs.next())
Leave_Reason = rs.getString("LeaveType");
else
{ out.println("no results found");
This should work...
Hope it helps.
Thanks and regards,
Pazhanikanthan. P