Not to execute console based jdbc application

[gyan kumar]

import java.sql.*;

public class Test {
     static final String JDBC_DRIVER = "sun.jdbc.odbc.JdbcOdbcDriver";  
      static final String DB_URL = "jdbc:odbc:school";

      static final String USER = "";
   static final String PASS = "";
   
   public static void main(String[] args) {
   Connection conn = null;
   Statement stmt = null;
   try{
         Class.forName("JDBC_DRIVER");

         System.out.println("Connecting to database...");
      conn = DriverManager.getConnection(DB_URL,USER,PASS);

         System.out.println("Creating statement...");
      stmt = conn.createStatement();
      String sql;
      sql = "SELECT id, first, last, age FROM Employees";
      ResultSet rs = stmt.executeQuery(sql);

         while(rs.next()){
            int id  = rs.getInt("id");
         int age = rs.getInt("age");
         String first = rs.getString("first");
         String last = rs.getString("last");

            System.out.print("ID: " + id);
         System.out.print(", Age: " + age);
         System.out.print(", First: " + first);
         System.out.println(", Last: " + last);
      }
         rs.close();
      stmt.close();
      conn.close();
   }catch(SQLException se){
      //Handle errors for JDBC
      se.printStackTrace();
   }catch(Exception e){
      //Handle errors for Class.forName
      e.printStackTrace();
   }finally{
      //finally block used to close resources
      try{
         if(stmt!=null)
            stmt.close();
      }catch(SQLException se2){
      }// nothing we can do
      try{
         if(conn!=null)
            conn.close();
      }catch(SQLException se){
         se.printStackTrace();
      }//end finally try
   }//end try
   System.out.println("Goodbye!");
}//end main
}

Able to compile the file.

But at the time of running getting below error:
Exception in thread "main" java.lang.NoClassDefFoundError: Test
Caused by: java.lang.ClassNotFoundException: Test
at java.net.URLClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
Could not find the main class: Test. Program will exit.

[gyan kumar]

Is there any path settings issue?

[gyan kumar]

done, classpath was not set properly.