Question

I get a java.lang.ClassNotFoundException, when I execute the below code.
Could someone explain me why I am facing this? All I need to do is to connect to the db and fetch some values from it. Is it a problem with the eclipse that I use?

import java.sql.*;

public class test_sample {

    public static void main(String[] args) {
        try {
              System.out.println("Test1");
              DriverManager.registerDriver(new oracle.jdbc.driver.OracleDriver());

              Class.forName("oracle.jdbc.OracleDriver");
                  System.out.println("Test2");
              Connection con = DriverManager.getConnection(
              "jdbc:oracle:thin:@ussbazudb126.ussb.winson.net:1521/epdev", "manager", "<<PASSWORD>>");
              System.out.println("Test3");
             // Statement st = con.createStatement();
              PreparedStatement meta = con.prepareStatement("select project from isac_extract");
              System.out.println("Test4");
              ResultSet rset = meta.executeQuery();
              while (rset.next()) {
                  String project = rset.getString(1);
                  System.out.println(project);}
              }
              catch (Exception e){
                  e.printStackTrace();
                  }
              finally {System.out.println("Final Block");}

    }

}

Answer 1

Download appropriate Oracle JDBC driver from here. If you are using Eclipse you need to add ojdbc14.jar which contains the OracleDriver class to your build path. It is usually located in:
{ORACLE DRIVER INSTALL PATH}\jdbc\lib\ojdbc14.jar

If you are not using an IDE you need to add the path to that JAR to your -classpath option.