[JAVA] che tipo di errore è?

[userfra]

questo è il metodo che richiamo

public void db(){
//db
String class_driver = "sun.jdbc.odbc.JdbcOdbcDriver"; String url_connect = "jdbcdbc:db";
Connection DBConnection;
Statement statement;
ResultSet rsQuery;
try{
Class.forName(class_driver);
}
catch(java.lang.Exception exc){
System.out.println("Class Driver ERROR " + exc.toString());
}
try{
DBConnection = DriverManager.getConnection(url_connect);
statement = DBConnection.createStatement();
rsQuery = statement.executeQuery("SELECT * FROM tab1");
rsQuery.next();
String data = rsQuery.getString(2);
System.out.println(data);
rsQuery.close();
statement.close();
DBConnection.close();
} // end try
catch(java.sql.SQLException exc){
System.out.println("SQL ERROR: " + exc.toString());
}
//
}