通过JTable中的列标题确定列名

Question

Is there any way to determine the column name by column header using Java JTable component? EG, I could have column header like "Header" and column name "Column". And I'm looking for a method like Column_Name_From_Header("Header") -> "Column".

Answer 1

If you have a reference to a JTable then the easiest way to obtain the column name is to obtain it from the underlying TableModel ; eg

JTable tbl = ...
String colName = tbl.getModel().getColumnName(10);

This is typically desirable as access is done using model indices rather than view indices. This means, for example that if you resort the columns of your JTable the column names in the model will still have the same predictable order.

Answer 2

Iterate through the table columns of the table's column model. Find the one with the given header value (using headerValue.equals(tableColumn.getHeaderValue() ). Then ask the modelIndex of the column ( tableColumn.getModelIndex() ), and ask the table's model for the column name at this index : tableModel.getColumnName(index) .