AbstractTableModel contains proper data but will not update on fireTablDataChanged
问题 I've searched and seen this question multiple times, and none of the solutions work. I have an AbstractTableModel that I've extended and called AccountTableModel . The code is as such. import InvAcntItem.Account; import java.util.LinkedList; import javax.swing.table.AbstractTableModel; public class AccountTableModel extends AbstractTableModel { LinkedList<Account> dataList; private String[] columnNames = {"Username", "Password"}; public AccountTableModel() { dataList = new LinkedList<>(); }