Question

Hi here are my codes for my table settings:

String [] column = {"MacAddress","PcName","OperatingSystem","IpAddress","Port","Status"};
    model = new DefaultTableModel(0,column.length);
    model.setColumnIdentifiers(column);
    mainTable = new JTable(model);
    mainTable.setAutoResizeMode(JTable.AUTO_RESIZE_OFF);
    for(int i=0;i<=column.length-1;i++){
    mainTable.getColumnModel().getColumn(i).setPreferredWidth(300);
    }
    pane = new JScrollPane(mainTable);
    pnlTabel = new JPanel();
    pnlTabel.setBorder(BorderFactory.createTitledBorder(""));
    pnlTabel.setPreferredSize(new Dimension(dim.width*70/100, dim.height*60/100));
    pnlTabel.add(pane);
addMainPanel(pnlTabel);

Here is my addMainPanel() function:

public void addMainPanel(Component pnl){
    mainPanel.add(pnl);
    mainPanel.revalidate();
}

And here is my code for my mainPanel:

    mainPanel = new JPanel();
mainPanel.setLayout(new FlowLayout(FlowLayout.LEFT));
add(mainPanel,"Center");

and I’m using border layout for my frame:

setLayout(new BorderLayout(0,0));

My problem is that, even i use this set of code to set my JTable to fit but it seems to fail all the this, this code:

 mainTable.setAutoResizeMode(JTa![enter image description here][1]ble.AUTO_RESIZE_OFF);
for(int i=0;i<=column.length-1;i++){
mainTable.getColumnModel().getColumn(i).setPreferredWidth(300);
}

When is use that code, my jtable does not resize but only add on a horizontal scroll bar at the bottom.

Answer 1

If you want a JTable to fill the available space, you should put it inside a JPanel which has a BorderLayout layout manager. Also don’t forget about the JScrollPane which ensures that if the table doesn’t fit into the view (e.g. too many rows), scrollbars will appear:

JFrame frame = new JFrame();
// set up frame

JTable table = new JTable();
// Set up table, add data

// Frame has a content pane with BorderLayout by default
frame.getContentPane().add( new JScrollPane( table ), BorderLayout.CENTER );

If you have other content you wish to display besides the table, you can add those to the NORTH, SOUTH, EAST, WEST parts of the content panel (which can be wrapped into other panels if more components are to be placed there).