Question

I generated a Swing interface with NetBeans. Everything works well, until I change rowCount to 4096. Now I get the exception NoClassDefFoundError. I ve tested that from rowCount 3850 it breaks. Is this is a bug, or something else; all tips are welcome. How can I increase that rowCount correctly?

Answer 1

通常使用JTable,显示一定数量的物体。这一编号应当通过getRowCount()予以退还。你不使用任何任意的分类,而是数据收集的大小。

查阅getValueAt(int row, int col)。也许它试图接触不存在的物体。如果你制作一个复制表,例如,你用SerValueAt送回的惯性来界定你的表体大小,那么你只能操纵JTable的大小。只有在这种情况下,你才可以自由修改你所希望的回报。

public Object getValueAt(int rowIndex, int columnIndex) {
    return (rowIndex +1 ) * (columnIndex + 1);
}

If you have a ResultSet, a Vector, an ArrayList etc, get and return its size in getRowCount.

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