java - 如何动态填充二维数组

Question

我想用这种模式显示结果集值:

对象 rowData[][] = { { url , 标签 , 文本 }, { url , 标签 , 文本 } };

我的代码是:

while (res.next()) {
    String url = res.getString(1);
    String tags = res.getString(2);
    String text = res.getString(3);
}
Object rowData[][] = { { "Row1-Column1", "Row1-Column2", "Row1-Column3" },
                { "Row2-Column1", "Row2-Column2", "Row2-Column3" } };

Object columnNames[] = { "URL", "Tag Information", "Text" };
JTable table = new JTable(rowData, columnNames);`

Answer 1

使用List来存储每个文件的数据，然后将List转换为Array:

List<Object[]> data = new ArrayList<Object[]>();
while (res.next()) {
    data.add(new Object[]{res.getString(1), res.getString(2),res.getString(3)});
}

Object[][] rowData = data.toArray(new Object[0][0]);
JTable table = new JTable(rowData, columnNames);