Panels with BorderLayout Question

[collwill]

I have created a frame which has 2 panels. The frame and panels has to use BorderLayout. 1 panel with the 3 buttons need to display in South and the other panel with 3 buttons in the Center. I understand about adding buttons in the panel and the panels are the ones that is need to be set in the cordinates but I am having problems. Could someone please show me how I can get my panels to go to their respective spot? I tried -
JPanel mp = new JPanel(new BorderLayout(BorderLayout.SOUTH));, but getting error. Help would be greatly appreciated. If not maybe someone can show me how to get 1 panel with the multi buttons to 1 quandrant.

import java.awt.*;
import javax.swing.*;


public class ShowBorderLayout {

	public static void main(String[] a)
	{
    	JFrame frame = new JFrame("BorderFlow Frame");
      	Container pane = frame.getContentPane();
      	//pane.setLayout(new BorderLayout);
      	pane.add(getMainPanel());
      	pane.add(getSubPanel());
      	frame.setSize(400,300);
      	frame.setVisible(true);
      	frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
   	}

	private static JPanel getMainPanel()
   	{
		JPanel mp = new JPanel(new BorderLayout);
		mp.setLayout(new BorderLayout());
    	mp.add(new JButton("Button 1"));
    	mp.add(new JButton("Button 2"));
		mp.add(new JButton("Button 3"));
		return mp;
   	}

	private static JPanel getSubPanel()
	{
    	JPanel sp = new JPanel(new BorderLayout());
		sp.setLayout(new BorderLayout());
      	sp.add(new JButton("Button 4"));
      	sp.add(new JButton("Button 5"));
      	sp.add(new JButton("Button 6"));
      	return sp;
	}


}

[sunde887]

There is a bit wrong with the panel creating code. When you initially create the panel you give it an argument of new BorderLayout, which is incorrect. You need to use a default constructor and then the next line correctly sets the layout. When you add the buttons you should be specifying where to place them.

panel.add(new JButton("hi"), BorderLayout.CENTER);

this adds a button to the center of the panel, it's nearly identical for all other border layout locations. Finally you would add the panels to the frames panel in a similar fashion.

[collwill]

Ok did that, but now all I see is the "Button 6" on the SOUTH quadrant and missing all the buttons in the Center and 4-5 for South. What am I missing?

public static void main(String[] a)
	{
    	JFrame frame = new JFrame("BorderFlow Frame");
      	Container pane = frame.getContentPane();
      	//pane.setLayout(new BorderLayout);
      	pane.add(getMainPanel());
      	pane.add(getSubPanel());
      	frame.setSize(400,300);
      	frame.setVisible(true);
      	frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
   	}

	private static JPanel getMainPanel()
   	{
		JPanel mp = new JPanel();
		mp.setLayout(new BorderLayout());
    	mp.add(new JButton("Button 1"),BorderLayout.CENTER );
    	mp.add(new JButton("Button 2"),BorderLayout.CENTER);
		mp.add(new JButton("Button 3"),BorderLayout.CENTER);
		return mp;
   	}

	private static JPanel getSubPanel()
	{
    	JPanel sp = new JPanel();
		sp.setLayout(new BorderLayout());
      	sp.add(new JButton("Button 4"),BorderLayout.SOUTH);
      	sp.add(new JButton("Button 5"),BorderLayout.SOUTH);
      	sp.add(new JButton("Button 6"),BorderLayout.SOUTH);
      	return sp;
	}

[camickr]

You can only add 1 component to "SOUTH", 1 component to the NORTH etc...

If you want multiple components in the "SOUTH", then create a panel, add components to the panel and then add the panel to the SOUTH.

[collwill]

I didn't think it sounded right but, did what was on reply. I have tow panels main & sub with one (sub) sp.setLayout(new BorderLayout());...but am confused by "add the panel to the SOUTH". Could someone please give me an example or steer me in the right path:confused::confused::confused:?

public static void main(String[] a)
	{
    	JFrame frame = new JFrame("BorderFlow Frame");
      	Container pane = frame.getContentPane();
      	//pane.setLayout(new BorderLayout());
      	pane.add(getMainPanel());
      	pane.add(getSubPanel());
      	frame.setSize(400,300);
      	frame.setVisible(true);
      	frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
   	}

	private static JPanel getMainPanel()
   	{
		JPanel mp = new JPanel();
		mp.setLayout(new BorderLayout());
    	mp.add(new JButton("Button 1") );
    	mp.add(new JButton("Button 2"));
	mp.add(new JButton("Button 3"));
	return mp;
   	}

	private static JPanel getSubPanel()
	{
    	JPanel sp = new JPanel();
	sp.setLayout(new BorderLayout());
       	sp.add(new JButton("Button 4"));
      	sp.add(new JButton("Button 5");
      	sp.add(new JButton("Button 6");
      	return sp;
	}

[camickr]

Could someone please give me an example or steer me in the right path

Read the Swing tutorial: A Visual Guide to Layout Managers (The Java™ Tutorials > Creating a GUI With JFC/Swing > Laying Out Components Within a Container). There are plenty of working examples.

[Fubarable]

as suggested in his new post on this same subject. Collwill -- please don't double post the same question!