Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| State (class) | Vacator | Reason for change | Successor | Date of successors formal installation |
| --- | --- | --- | --- | --- |
| Indiana (1) | Vacant | James Noble died in previous Congress | Robert Hanna (AJ) | Installed August 19, 1831 |
| Kentucky (3) | Vacant | Vacancy in term | Henry Clay (AJ) | Installed November 10, 1831 |
| Pennsylvania (1) | Isaac D. Barnard (J) | Resigned December 6, 1831 due to ill health | George M. Dallas (J) | Installed December 13, 1831 |
| Indiana (1) | Robert Hanna (AJ) | Successor elected January 3, 1832 | John Tipton (J) | Installed January 3, 1832 |
| Virginia (2) | Littleton Waller Tazewell (J) | Resigned July 16, 1832 | William C. Rives (J) | Installed December 10, 1832 |
Question:
Name the state class for isaac d. barnard (j)
Answer:
Pennsylvania (1)