jtable数字列居中

继承JTable,然后重载getCellRenderer方法
getCellRenderer(int   x,   int   y)
{
    TableCellRenderer   renderer   =   super.getCellRenderer();
    if   (renderer   instanceof   JLabel)
{
    ((JLabel)renderer).setHorizontalAlignment(JLabel.CENTER);
}
}

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转载自zhaohaiyang.iteye.com/blog/1407253