Jsp errot help!

Question

i have 4 error after compling this files, cannot 1 help pls!
<%@ page import="java.io.*"%>
<%@ page import="java.util.zip.*"%>
<%@ page import="java.lang.Thread"%>
<%@ page import="java.net.URL"%>
<%@ page import="java.net.URLConnection"%>
<%@ page import="java.sql.*"%>
<%@ page import="java.util.*"%>
<%@ page import="java.util.StringTokenizer.*"%>
<%
class ThreadBase implements Runnable
int counter = 0;
public void run()
     try
          Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
     catch(ClassNotFoundException e)
          System.out.println(e);
     Connection c = DriverManager.getConnection("jdbc:odbc:MHuman");
     Statement s = c.createStatement();
          int x = 1;
          String x_str = "";
          do{
                    x_str = Integer.toString(x);
                    if (x==23) x_str = "X";
                    else if (x==24) x_str="Y";
               try
                    String sqlstr = "CREATE TABLE Chromosome"+x_str+" " +
                    "(ID number, HChr varchar (20), Hstart number, Hend number, MChr varchar (20), Mstart number, Mend number)";
                    System.out.println(sqlstr);
                    try { s.execute("Drop table Chromosome"+x_str+"");
               catch (Exception e) { };
               s.execute(sqlstr);
catch(SQLException e)
e.printStackTrace();
// Create BufferedReader object.
BufferedReader br = null;
try
          br = new BufferedReader(
          new FileReader("C:\\downloadChr\\mhuman\\chr"+x_str+".txt"));
catch(IOException e)
     System.out.println(e);
String line, ID, HChr, Hstart, Hend, MChr, Mstart, Mend, sql;
StringTokenizer st;
try
     cs();
     while ((line = br.readLine()) != null)
               st = new StringTokenizer(line, " ");
               ID = st.nextToken();
               HChr = st.nextToken();
               Hstart = st.nextToken();
               Hend = st.nextToken();
               MChr = st.nextToken();
               Mstart = st.nextToken();
               Mend = st.nextToken();
               if (!MChr.startsWith("chrNA"))
                    if (!MChr.startsWith("chrM"))
                         if (!MChr.startsWith("chrUn"))
                              if (!MChr.startsWith("chrFinished"))
                    sql = "INSERT INTO Chromosome"+x_str+" " +
                    "VALUES (" + ID + ", '" + HChr + "', " + Hstart + ", " + Hend + ", '" + MChr + "', " + Mstart + ", " + Mend + ")";
                    //System.out.println(sql);
                    s.executeUpdate(sql);
catch(IOException e)
System.out.println(e);
}while (x++ < 12);
     c.close();
     private void cs()
          int a = counter;
          a++;
          counter = a;
          System.out.println("Thread is running with Chr " + counter);
C:\Program Files\Tomcat 4.1\work\Standalone\localhost\examples\jsp\HMC\HTML\testDL3_jsp.java:74: unreported exception java.sql.SQLException; must be caught or declared to be thrown
An error occurred at line: 9 in the jsp file: /jsp/HMC/HTML/testDL3.jsp
Generated servlet error:
     Connection c = DriverManager.getConnection("jdbc:odbc:MHuman");
^
An error occurred at line: 9 in the jsp file: /jsp/HMC/HTML/testDL3.jsp
Generated servlet error:
C:\Program Files\Tomcat 4.1\work\Standalone\localhost\examples\jsp\HMC\HTML\testDL3_jsp.java:76: unreported exception java.sql.SQLException; must be caught or declared to be thrown
     Statement s = c.createStatement(); ^
An error occurred at line: 9 in the jsp file: /jsp/HMC/HTML/testDL3.jsp
Generated servlet error:
C:\Program Files\Tomcat 4.1\work\Standalone\localhost\examples\jsp\HMC\HTML\testDL3_jsp.java:139: unreported exception java.sql.SQLException; must be caught or declared to be thrown
                    s.executeUpdate(sql);
^
An error occurred at line: 9 in the jsp file: /jsp/HMC/HTML/testDL3.jsp
Generated servlet error:
C:\Program Files\Tomcat 4.1\work\Standalone\localhost\examples\jsp\HMC\HTML\testDL3_jsp.java:153: unreported exception java.sql.SQLException; must be caught or declared to be thrown
     c.close();
^
4 errors

Answer 1

Your Connection object and Statement object is written outside try{}.
Put all your code inside try{}.
Hope this will solve your problem.