在Sun的官方网站上对Editor和Renderer的解释是如下: Renderer: Instead, a single cell renderer is generally used to draw all of the cells that contain the same type of data. You can think of the renderer as a configurable ink stamp that the table uses to stamp appropriately formatted data onto each cell. When the user starts to edit a cell's data, a cell editor takes over the cell, controlling the cell's editing behavior. 个人理解就是对于不同的数据显示不同的格式,相当于在MVC中根据不同的Model选择不同的View,Renderer就是给你这个选择的权利。默认的几种数据的显示方式如下:
Boolean — rendered with a check box.
Number — rendered by a right-aligned label.
Double , Float — same as Number , but the object-to-text translation is performed by a NumberFormat instance (using the default number format for the current locale).
Date — rendered by a label, with the object-to-text translation performed by a DateFormat instance (using a short style for the date and time).
ImageIcon , Icon — rendered by a centered label.
Object — rendered by a label that displays the object's string value.
如果你有特殊的数据,想有特殊的显示方式,可以自己设定Cell的Renderer如下: TableCellRenderer weirdRenderer = new WeirdRenderer(); table = new JTable(...) { public TableCellRenderer getCellRenderer(int row, int column) { if ((row == 0) && (column == 0)) { return weirdRenderer; } // else... return super.getCellRenderer(row, column); } }; Editor是用于编辑数据,但是Renderer是用于显示数据。 关于Editor,和Renderer遵守相同的法则

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