error:exception in thread main java.lang.noclassde

[sara.j]

i have entered the following code in notepad for creating table
import java.sql.*;

Public class CreateTable {
    public static void main(string args[]){
    connection con=null;
    try{
     class.forname("org.gjt.mm.mysql.driver").newinstan ce();
     SYSTEM.OUT.PRintln("JDBC Driver loaded");
     con=drivermanager.getconnection(
     "jdbc:mysql://localhost/wrox?user=root&password=q1w2e3");
     SYSTEM.OUT.Println("Database connection established");

     statement stmt=con.createstatement();
     string upd="Create table author(
                     Author_id Integer NOT NULL PRIMARY KEY,
                     Author_name char(50));";
     stmt.executeupdate(upd);
     System.out.println("Table-Author created");
        }
     Catch (ClassNotFoundException cnfe){
        system.out.println("ClassNotFoundException:could not locate Driver");
     }catch(SQLException cnfe){
        system.out.println("SQLException:+Cnfe);
     }Catch(Exception e){
        system.out.println("AN unknown error occured while connecting TO THE Database");
     }finally {
      try {
      if(con!=null)
      con.close();
        }catch(SQLException sqle){
         SYStem.out.println("unable to close database connection.");
        }
          }
         }
     }
when i try to run >java CreateTable i am getting the following error:exception in thread main java.lang.noclassdef found:CreateTable.

pls help.