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Java AWT

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Frame

Name

Frame

[Graphic: Figure from the text]

Description

The Frame class is a special type of Window that will appear like other high-level programs in your windowing environment. It adds a MenuBar, window title, and window gadgets (like resize, maximize, minimize, window menu) to the basic Window object. Frames are initially invisible; call show() to display them. Frames may also be associated with an Image to be used as an icon. The Frame class includes many constants to represent different cursor styles. All styles aren't necessarily available on any platform. In 1.1, these constants are defined in java.awt.Cursor.

Class Definition

public class java.awt.Frame
    extends java.awt.Window
    implements java.awt.MenuContainer {
  
  // Constants
  public final static int CROSSHAIR_CURSOR;
  public final static int DEFAULT_CURSOR;
  public final static int E_RESIZE_CURSOR;
  public final static int HAND_CURSOR;
  public final static int MOVE_CURSOR;
  public final static int N_RESIZE_CURSOR;
  public final static int NE_RESIZE_CURSOR;
  public final static int NW_RESIZE_CURSOR;
  public final static int S_RESIZE_CURSOR;
  public final static int SE_RESIZE_CURSOR;
  public final static int SW_RESIZE_CURSOR;
  public final static int TEXT_CURSOR;
  public final static int W_RESIZE_CURSOR;
  public final static int WAIT_CURSOR;
  
  // Constructors
  public Frame();
  public Frame (String title);
  
  // Instance Methods
  public void addNotify();
  public synchronized void dispose();
  public int getCursorType(); (Deprecated)
  public Image getIconImage();
  public MenuBar getMenuBar();
  public String getTitle();
  public boolean isResizable();
  public synchronized void remove (MenuComponent component);
  public synchronized void setCursor (int cursorType); (Deprecated)
  public synchronized void setIconImage (Image image);
  public synchronized void setMenuBar (MenuBar bar);
  public synchronized void setResizable (boolean resizable);
  public synchronized void setTitle (String title);
  
  // Protected Instance Methods
  protected String paramString();
}

Constants

CROSSHAIR_CURSOR

public final static int CROSSHAIR_CURSOR

Constant representing a cursor that looks like a crosshair.

DEFAULT_CURSOR

public final static int DEFAULT_CURSOR

Constant representing the platform's default cursor.

E_RESIZE_CURSOR

public final static int E_RESIZE_CURSOR

Constant representing the cursor for resizing an object on the left.

HAND_CURSOR

public final static int HAND_CURSOR

Constant representing a cursor that looks like a hand.

MOVE_CURSOR

public final static int MOVE_CURSOR

Constant representing a cursor used to move an object.

N_RESIZE_CURSOR

public final static int N_RESIZE_CURSOR

Constant representing a cursor for resizing an object on the top.

NE_RESIZE_CURSOR

public final static int NE_RESIZE_CURSOR

Constant representing a cursor for resizing an object on the top left corner.

NW_RESIZE_CURSOR

public final static int NW_RESIZE_CURSOR

Constant representing a cursor for resizing an object on the top right corner.

S_RESIZE_CURSOR

public final static int S_RESIZE_CURSOR

Constant representing a cursor for resizing an object on the bottom.

SE_RESIZE_CURSOR

public final static int SE_RESIZE_CURSOR

Constant representing a cursor for resizing an object on the bottom left corner.

SW_RESIZE_CURSOR

public final static int SW_RESIZE_CURSOR

Constant representing a cursor for resizing an object on the bottom right corner.

TEXT_CURSOR

public final static int TEXT_CURSOR

Constant representing a cursor used within text.

W_RESIZE_CURSOR

public final static int W_RESIZE_CURSOR

Constant representing a cursor for resizing an object on the right side.

WAIT_CURSOR

public final static int WAIT_CURSOR

Constant representing a cursor that indicates the program is busy.

Constructors

Frame

public Frame()

Description

Constructs a Frame object, with no title.

public Frame (String title)

Parameters

title

Initial title to use for Frame.

Description

Constructs a Frame object, with the given title.

Instance Methods

addNotify

public void addNotify()

Overrides

Window.addNotify()

Description

Creates Frame's peer and peers of contained components.

dispose

public synchronized void dispose()

Overrides

Window.dispose()

Description

Releases the resources of the Frame.

getCursorType

public int getCursorType() (Deprecated)

Returns

The constant for the current cursor. Replaced by Component.getCursor()

getIconImage

public Image getIconImage()

Returns

The image used as the icon, or null if there is no icon for this frame.

getMenuBar

public MenuBar getMenuBar()

Returns

The Frame's current menu bar, or null if there is no menu bar for this frame.

getTitle

public String getTitle()

Returns

The current title for the Frame, or null if there is no title for this frame.

isResizable

public boolean isResizable()

Returns

true if resizable, false otherwise.

remove

public synchronized void remove (MenuComponent component)

Parameters

component

MenuBar to remove from Frame.

Implements

MenuContainer.remove()

Description

Removes component from Frame if component is the Frame's menu bar.

setCursor

public synchronized void setCursor (int cursorType) (Deprecated)

Parameters

cursorType

One of Frame's cursor constants.

Throws

IllegalArgumentException

If cursorType invalid.

Description

Changes the cursor of the Frame. Replaced by Component.setCursor(Cursor).

setIconImage

public synchronized void setIconImage (Image image)

Parameters

image

New image to use for the Frame's icon.

Description

Changes the icon's image for the Frame.

setMenuBar

public synchronized void setMenuBar (MenuBar bar)

Parameters

bar

New MenuBar to use for the Frame.

Description

Changes the menu bar of the Frame.

setResizable

public synchronized void setResizable (boolean resizable)

Parameters

resizable

true to make the frame resizable, false to prevent resizing.

Description

Changes the resize state of the Frame.

setTitle

public synchronized void setTitle (String title)

Parameters

title

New title to use for the Frame.

Description

Changes the title of the Frame.

Protected Instance Methods

paramString

protected String paramString()

Returns

String with current settings of Frame.

Overrides

Container.paramString()

Description

Helper method for toString() to generate a string of current settings.

See Also

Container, Image, MenuBar, MenuContainer, String, Window


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