Java JTable header word wrap

Question

I am trying to get the header on a table to have word wrap. I have managed to do this but the first data row is expanding. The code for the table is:

publi         


        

Answer 1

You can achieve multi-line headers much easier.

As with many Swing components you can use HTML code. In HTML specify
elements to indicate where line breaks / new lines should occur.

For example if you use the following header values (column names):

String[] columnNames = {
    "First
column",
    "Second
column",
    "Third
column"
};

Then the headers will be properly rendered in 2 lines. You don't even need to create/use a custom header renderer, the default header renderer properly handles HTML code.

Note: The header height will be determined by the height of the first column. So you have to use a 2-line HTML value for the first column too. If you only have 1 word for the first column, you may additionally add an empty second line like this: "Select
 "