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  1. import java.awt.*;
  2. import java.awt.event.*;
  3. import javax.swing.*;
  4.  
  5. // Swing Program Template for running as application or Applet
  6. @SuppressWarnings("serial")
  7. public class SwingTemplateApp extends JPanel {
  8.    // Name-constants to define the various dimensions
  9.    public static final int WINDOW_WIDTH = 300;
  10.    public static final int WINDOW_HEIGHT = 150;
  11.    // ......
  12.  
  13.    // private variables of UI components
  14.    // ......
  15.  
  16.    /** Constructor to setup the UI components */
  17.    public SwingTemplateApp() {
  18.       // "this" JPanel sets layout
  19.       // this.setLayout(new ....Layout());
  20.  
  21.       // Allocate the UI components
  22.       // .....
  23.  
  24.       // "this" JPanel adds components
  25.       // this.add(....)
  26.  
  27.       // Source object adds listener
  28.       // .....
  29.  
  30.    }
  31.  
  32.    /** The entry main() method */
  33.    public static void main(String[] args) {
  34.       // Run GUI codes in the Event-Dispatching thread for thread safety
  35.       SwingUtilities.invokeLater(new Runnable() {
  36.          public void run() {
  37.             JFrame frame = new JFrame();
  38.             frame.setContentPane(new SwingTemplateApp());
  39.             frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
  40.             frame.setTitle("......");
  41.             frame.setSize(WINDOW_WIDTH, WINDOW_HEIGHT);  // or pack()
  42.             frame.setVisible(true);
  43.          }
  44.       });
  45.    }
  46. }
  47. Main Applet Class
  48. 1
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  71. 24
  72. import java.lang.reflect.InvocationTargetException;
  73. import javax.swing.JApplet;
  74.  
  75. // Swing Program Template for running as Applet
  76. @SuppressWarnings("serial")
  77. public class SwingTemplateApplet extends JApplet {
  78.  
  79.    /** init() to setup the UI components */
  80.    @Override
  81.    public void init() {
  82.       // Run GUI codes in the Event-Dispatching thread for thread safety
  83.       try {
  84.          javax.swing.SwingUtilities.invokeAndWait(new Runnable() {
  85.             public void run() {
  86.                setContentPane(new SwingTemplateApplet());
  87.             }
  88.          });
  89.       } catch (InvocationTargetException e) {
  90.          e.printStackTrace();
  91.       } catch (InterruptedException e) {
  92.          e.printStackTrace();
  93.       }
  94.    }
  95. }
Compilation error #stdin compilation error #stdout 0s 0KB
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stdin
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Standard input is empty
compilation info 
Main.java:47: error: class, interface, or enum expected
Main Applet Class
^
Main.java:73: error: class, interface, or enum expected
import javax.swing.JApplet;
^
2 errors
stdout
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Standard output is empty
https://ideone.com/5DOvGd
language:
Java (HotSpot 12)
created:
1 year ago
visibility:
public

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