Jdbc connectivity using type 4 driver using oracle10g

Question

Hi while running a jdbc program using type 4 driver using oracle 10 g I am Getting following exception
java.lang.NullPointerException
java.lang.NullPointerException
at Type4ConnectTest.main(Type4ConnectTest.java:31)
Exception in thread "main" java.lang.ClassNotFoundException: oracle.jdbc.driver.
OracleDriver
at java.net.URLClassLoader$1.run(URLClassLoader.java:200)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:276)
at java.lang.ClassLoader.loadClass(ClassLoader.java:251)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:169)
at Type4ConnectTest.main(Type4ConnectTest.java:15)
My Program Code is..
import java.sql.*;
class Type4ConnectTest
public static void main(String args[])throws Exception
Connection con=null;
Statement st=null;
ResultSet rs=null;
try
// DriverManager.registerDriver(new Oracle:jdbc:OracleDriver());
Class.forName("oracle.jdbc.OracleDriver");
String url="jdbcracle:thin:@localhost:1521";
con=DriverManager.getConnection(url,"sarika","sarika");
catch(NullPointerException e)
System.out.println("e");
e.printStackTrace();
finally
try
con.close();
st.close();
rs.close();
catch(Exception e)
System.out.println(e);
e.printStackTrace();
I also set path of ojdbc14.jar and orai18n.jar in environment variable.
pls help to solve the problem

Answer 1

Class.forName("SOME_DRIVER_CLASS");Is tricky to use because it will compile not needing to reference the vendors jar file.
You have to remember to deploy it though where ever you plan to run this program.
If you are running from command line
java -cp PATH_TO_JAR Type4ConnectTest