JTable? That's easy. Now, make me a true multicolumn JTree.
JavaFX ships with a TreeTableView control specifically to do this.
Questions about what this implies about Slashdot's editorial practices and readership remain unanswered."The file was downloaded about 100,000 more times each day — adding up to more than 500,000 total illegal downloads. That's less than the 1.2 million legitimate online sales of the album reported by the British Web site Gigwise.com"