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Hello everyone, After I created a JTable with: JTable MaTable =new JTable(); MaTable.setModel(new DefaultTableModel(new Object [N][1], new String [1])); I wanted to add new columns to it, so I did this: TableColumn Colonne = new TableColumn(); MaTable.addColumn(Colonne); The operation did worked, even the new columns displayed correctly, but, when I … |