Packages  This Package  Prev  Next  Index  

public  class  java.awt.BorderLayout
    extends  java.lang.Object  (I-§1.12)
    implements java.awt.LayoutManager  (II-§1.43)
{
        // Constructors
    public BorderLayout();	§1.1.1
    public BorderLayout(int  hgap, int  vgap);	§1.1.2

        // Methods
    public void  addLayoutComponent(String  name,	§1.1.3
          Component  comp);
    public void layoutContainer(Container  target);	§1.1.4
    public Dimension minimumLayoutSize(Container  target);	§1.1.5
    public Dimension preferredLayoutSize(Container  target);	§1.1.6
    public void removeLayoutComponent(Component  comp);	§1.1.7
    public String toString();	§1.1.8
}

Here is an example of five buttons in an applet laid out using the BorderLayout layout manager:

The code for this applet is the following:

import java.awt.*;
import java.applet.Applet;

public class buttonDir extends Applet {
  public void init() {
    setLayout(new BorderLayout());
        add("North", new Button("North"));
    add("South", new Button("South"));
    add("East", new Button("East"));
    add("West", new Button("West"));
    add("Center", new Button("Center"));
  }
}

Constructs a new border layout.

Creates a new border layout with the specified horizontal and vertical gaps. The horizontal and vertical gaps specify the space between the components.

Parameters:

hgap - the horizontal gap

vgap - the vertical gap

Adds the specified component to this border layout using the indicated tag.

For border layouts, the tag should be one of "North", "South", "East", "West", or "Center". Any other tag is ignored.

Most applications do not call this method directly. This method is called when a component is added to a container using the two-argument add method (II-§1.11.3).

Parameters:

name - a tag understood by the layout manager

comp - the component to be added

Lays out the container argument using this border layout.

This method reshapes the components in the specified container in order to satisfy the constraints of this BorderLayout object. The "North" and "South"components, if any, are placed at the top and bottom of the container, respectively. The "West" and "East" components are then placed on the left and right, respectively. Finally, the "Center" object is placed in any remaining space in the middle.

Most applications do not call this method directly. This method is called when a container calls its layout method (II-§1.11.11).

Parameters:

target - the container in which to do the layout

See Also:

Container (II-§1.11).

Determines the minimum size of the target container using this layout manager.

This method is called when a container calls its minimumSize method (II-§1.11.14). Most applications do not call this method directly.

Parameters:

target - the container in which to do the layout

Returns:

the minimum dimensions needed to lay out the subcomponents of the specified container.

See Also:

Container (II-§1.11)
preferredLayoutSize (II-§1.1.6).

Determines the preferred size of the target container using this layout manager.

This method is called when a container calls its preferredSize method (II-§1.11.17). Most applications do not call this method directly.

Parameters:

target - the container in which to do the layout

Returns:

the preferred dimensions to lay out the subcomponents of the specified container.

See Also:

Container (II-§1.11)
minimumLayoutSize (II-§1.1.5).

Removes the specified component from this border layout. This method is called when a container calls its remove (II-§1.11.19) or removeAll (II-§1.11.20) methods. Most applications do not call this method directly.

Parameters:

comp - the component to be removed

Returns:

a string representation of this border layout.

Overrides:

toString in class Object (I-§1.12.9).

Packages  This Package  Prev  Next  Index