src/HelloWorldSwing.java

   1 /*
   2  * Copyright (c) 1995, 2008, Oracle and/or its affiliates. All rights reserved.
   3  *
   4  * Redistribution and use in source and binary forms, with or without
   5  * modification, are permitted provided that the following conditions
   6  * are met:
   7  *
   8  *   - Redistributions of source code must retain the above copyright
   9  *     notice, this list of conditions and the following disclaimer.
  10  *
  11  *   - Redistributions in binary form must reproduce the above copyright
  12  *     notice, this list of conditions and the following disclaimer in the
  13  *     documentation and/or other materials provided with the distribution.
  14  *
  15  *   - Neither the name of Oracle or the names of its
  16  *     contributors may be used to endorse or promote products derived
  17  *     from this software without specific prior written permission.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
  20  * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
  21  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
  23  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  24  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  25  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
  26  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
  27  * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
  28  * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  29  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  30  */
  31
  32
  33 /*
  34  * HelloWorldSwing.java requires no other files.
  35  */
  36
  37 import javax.swing.*;
  38
  39 public class HelloWorldSwing extends JFrame {
  40
  41     HelloWorldSwing(String title) {
  42         //Create and set up the window.
  43         setTitle(title);
  44         setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
  45
  46         JPanel panel = new JPanel();
  47
  48         //Add the ubiquitous "Hello World" label.
  49         JLabel label = new JLabel("Hello World");
  50         panel.add(label);
  51
  52         getContentPane().add(panel);
  53     }
  54
  55     /**
  56      * Show the GUI. For thread safety,
  57      * this method should be invoked from the
  58      * event-dispatching thread.
  59      */
  60     public void showGUI() {
  61
  62         //Display the window.
  63         this.pack();
  64         this.setVisible(true);
  65     }
  66 }