Java PreparedStatement che recupera l'ultimo ID inserito

passa Statement.RETURN_GENERATED_KEYS in prepareStatement() insieme alla tua domanda. E poi usa getGeneratedKeys() di PreparedStatement per ottenere il ResultSet contenente l'auto_incremented_id inserito.

String query="Insert INTO Table_A(name, age) (?, ?)";
                //String query="Insert INTO Table_A(name, age) ('abc','123' )";//Doesn't escape
                PreparedStatement prest;
                prest = con.prepareStatement(query, Statement.RETURN_GENERATED_KEYS);
                prest.setString(1,"abc");
                prest.setInt(2,123);
                prest.executeUpdate();
                //prest.executeUpdate(query, PreparedStatement.RETURN_GENERATED_KEYS); Throws an error
                //prest.executeQuery(); Throws an error
                ResultSet rs = prest.getGeneratedKeys();
                if(rs.next())
                {
                    int last_inserted_id = rs.getInt(1);
                }