java - 如何通过列索引访问列？

Question

    model = new DefaultTableModel(data, columnNames) 
    {            
        @Override
        public String getColumnName(int col) {
            return (String) columnNames[col];
        }
    };

   table = new JTable(model); 

   for (int tc=0; tc<table.getColumnCount(); tc++)
        table.getColumn(tc).setCellRenderer(new TextAreaRenderer());

我需要按列索引访问列。出现以下错误:

Exception in thread "AWT-EventQueue-0" java.lang.IllegalArgumentException: Identifier not found
at javax.swing.table.DefaultTableColumnModel.getColumnIndex(Unknown Source)
    at javax.swing.JTable.getColumn(Unknown Source)

Answer 1

获取列需要使用列名，如下:

 for (int tc=0; tc<table.getColumnCount(); tc++)
        table.getColumn(columnNames[tc]).setCellRenderer(new TextAreaRenderer());