Change column header in a JTable

Question

This is my table right now :

This is the code that I can change the column title:

table.getColumnModel().getColumn(0).setHeaderValue("Lecturersssss");

But the column title would not change until I hover the mouse on the Lecturer column header.

Even when i use table.repaint() after this code, it won't change. Do you guys have any idea how can I solve this issue ?

Thanks.

Answer 1

JTableHeader header= table.getTableHeader();
TableColumnModel colMod = header.getColumnModel();
TableColumn tabCol = colMod.getColumn(0);
tabCol.setHeaderValue("Lecturersssss");
header.repaint();