@Override public void setValueAt(Object aValue, int rowIndex, int columnIndex) { Agent agent = null; if (rowIndex > agents.size()) { throw new IllegalArgumentException(strings.getString("rowIndex_OOB")); } else { agent = agents.get(rowIndex); } switch (columnIndex) { case 0: agent.setName((String) aValue); break; case 1: agent.setAgentNumber((Integer) aValue); break; case 2: agent.setDateOfEnrollment((Date) aValue); break; case 3: agent.setIsDead((Boolean) aValue); break; default: throw new IllegalArgumentException(strings.getString("columnIndex_OOB")); } }