What is the BorderLayout : BorderLayout « Swing « Java Tutorial






BorderLayout is the default layout manager for the content pane of a JFrame, JWindow, JDialog, JInternalFrame, and JApplet.

  1. Place components against any of the four borders of the container and in the center.
  2. The component in the center fills the available space.
  3. You do not need specify all five areas of the container.
  4. The component in the north region takes up the entire width of the container along its top.
  5. South does the same along the bottom.
  6. The heights of north and south will be the preferred heights of the added component.
  7. The east and west areas are given the widths of the component each contains, where the height is whatever is left in the container after satisfying north's and south's height requirements.
  8. Any remaining space is given to the component in the center region.
  9. Constants used to specify areas: CENTER, EAST, NORTH, SOUTH, WEST

Its constructors:

public BorderLayout()
public BorderLayout(int hgap, int vgap)
What is the BorderLayout
import java.awt.BorderLayout;
import java.awt.Container;
import java.awt.Font;

import javax.swing.BorderFactory;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.border.BevelBorder;

public class BorderLayoutExample extends JFrame {

  public static void main(String[] args) {
    BorderSample bs = new BorderSample();
    bs.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    Container pane = bs.getContentPane();
    pane.setLayout(new BorderLayout());
    JLabel label = new JLabel("North", JLabel.CENTER);
    label.setFont(new Font("Courier", Font.BOLD, 36));
    label.setBorder(BorderFactory.createBevelBorder(BevelBorder.RAISED));
    pane.add(label, BorderLayout.NORTH);
    label = new JLabel("South", JLabel.CENTER);
    label.setFont(new Font("Courier", Font.BOLD, 36));
    label.setBorder(BorderFactory.createBevelBorder(BevelBorder.RAISED));
    pane.add(label, BorderLayout.SOUTH);
    label = new JLabel("East", JLabel.CENTER);
    label.setFont(new Font("Courier", Font.BOLD, 36));
    label.setBorder(BorderFactory.createBevelBorder(BevelBorder.RAISED));
    pane.add(label, BorderLayout.EAST);
    label = new JLabel("West", JLabel.CENTER);
    label.setFont(new Font("Courier", Font.BOLD, 36));
    label.setBorder(BorderFactory.createBevelBorder(BevelBorder.RAISED));
    pane.add(label, BorderLayout.WEST);
    label = new JLabel("Center", JLabel.CENTER);
    label.setFont(new Font("Courier", Font.BOLD, 36));
    label.setBorder(BorderFactory.createBevelBorder(BevelBorder.RAISED));
    pane.add(label, BorderLayout.CENTER);
    bs.setSize(400, 300);
    bs.setVisible(true);
  }

}








14.86.BorderLayout
14.86.1.What is the BorderLayoutWhat is the BorderLayout
14.86.2.A BorderLayout divides the space into five regions: North, West, South, East and Centre.
14.86.3.Using a BorderLayout ManagerUsing a BorderLayout Manager
14.86.4.A typical usage of a border layout manager.A typical usage of a border layout manager.
14.86.5.Place multiple components into one of the regions of a BorderLayout-managed containerPlace multiple components into one of the regions of a BorderLayout-managed container
14.86.6.Combining BorderLayout and GridLayout ManagersCombining BorderLayout and GridLayout Managers