NoSuchMethodError:main怎么回事？

程序如下：
package ckstudio.db;
import java.sql.*;
public class faq{
private Connection conn=null;
private Statement stmt=null;
private ResultSet rs=null;
public Connection getConnection(){
try{
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
conn=DriverManager.getConnection("jdbc:odbc:shnxn","","");
}catch(Exception e){
System.out.println(e.toString());
}return conn;
}
public static void main (String args[]){

}
}
在JCreator中运行，提示：Exception in thread "main" java.lang.NoSuchMethodError:main为什么？