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Panel.java
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1997-08-30
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/*
* @(#)Panel.java 1.16 97/06/17
*
* Copyright (c) 1995, 1996 Sun Microsystems, Inc. All Rights Reserved.
*
* This software is the confidential and proprietary information of Sun
* Microsystems, Inc. ("Confidential Information"). You shall not
* disclose such Confidential Information and shall use it only in
* accordance with the terms of the license agreement you entered into
* with Sun.
*
* SUN MAKES NO REPRESENTATIONS OR WARRANTIES ABOUT THE SUITABILITY OF THE
* SOFTWARE, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
* IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
* PURPOSE, OR NON-INFRINGEMENT. SUN SHALL NOT BE LIABLE FOR ANY DAMAGES
* SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR DISTRIBUTING
* THIS SOFTWARE OR ITS DERIVATIVES.
*
* CopyrightVersion 1.1_beta
*
*/
package java.awt;
import java.awt.peer.PanelPeer;
/**
* <code>Panel</code> is the simplest container class. A panel
* provides space in which an application can attach any other
* component, including other panels.
* <p>
* The default layout manager for a panel is the
* <code>FlowLayout</code> layout manager.
*
* @version 1.16, 06/17/97
* @author Sami Shaio
* @see java.awt.FlowLayout
* @since JDK1.0
*/
public class Panel extends Container {
final static LayoutManager panelLayout = new FlowLayout();
private static final String base = "panel";
private static int nameCounter = 0;
/*
* JDK 1.1 serialVersionUID
*/
private static final long serialVersionUID = -2728009084054400034L;
/**
* Creates a new panel using the default layout manager.
* The default layout manager for all panels is the
* <code>FlowLayout</code> class.
* @since JDK1.0
*/
public Panel() {
this(panelLayout);
}
/**
* Creates a new panel with the specified layout manager.
* @param layout the layout manager for this panel.
* @since JDK1.1
*/
public Panel(LayoutManager layout) {
this.name = base + nameCounter++;
setLayout(layout);
}
/**
* Creates the Panel's peer. The peer allows you to modify the
* appearance of the panel without changing its functionality.
*/
public void addNotify() {
peer = getToolkit().createPanel(this);
super.addNotify();
}
}