How to load mysql driver in netbeans 5.0

I configured mysql driver(com.mysql.jdbc.Driver) in netbeans 5.0. but i got this type of errors
(run:
Exception in thread "main" java.lang.ClassNotFoundException: com.mysql.jdbc.Driver
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:268)
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:164)
at gdb.gdbop.main(gdbop.java:20))
plz help me for this...............

IDEs such as netbeans and eclipse require you to add any external jars to the project's classpath.
for netbeans 5.0, see here:
http://www.netbeans.org/kb/50/using-netbeans/project_setup.html#pgfId-1157099

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