使用AbstractTableModel删除所有行的Jtable

import javax.swing.*;
import javax.swing.table.AbstractTableModel;

public class CustomTableModel extends AbstractTableModel {
    private Object[][] data;
    private String[] columnNames;

    public CustomTableModel(Object[][] data, String[] columnNames) {
        this.data = data;
        this.columnNames = columnNames;
    }

    @Override
    public int getRowCount() {
        return data.length;
    }

    @Override
    public int getColumnCount() {
        return columnNames.length;
    }

    @Override
    public Object getValueAt(int row, int col) {
        return data[row][col];
    }

    public void deleteAllRows() {
        data = new Object[0][columnNames.length];
        fireTableDataChanged();
    }

    public static void main(String[] args) {
        Object[][] data = {{"1", "John"}, {"2", "Jane"}, {"3", "Bob"}};
        String[] columnNames = {"ID", "Name"};

        CustomTableModel model = new CustomTableModel(data, columnNames);
        JTable table = new JTable(model);

        // 删除所有行
        model.deleteAllRows();

        // 刷新表格显示
        table.repaint();
    }
}