序列化JFrame并通过网络发送

我想要做的是通过套接字发送JFrame。 问题是在我发送表单并按下按钮查看后，我得到以下exception。

package ds3; import java.io.IOException; import java.io.ObjectInputStream; import java.io.ObjectOutputStream; import java.net.ServerSocket; import java.net.Socket; import java.util.logging.Level; import java.util.logging.Logger; import javax.swing.JFrame; public class SerializationApp extends JFrame { private DataForm dataForm = new DataForm(); private int serverPort = 15000; private ServerSocket serverSocket; public SerializationApp() { try { serverSocket = new ServerSocket(serverPort); initComponents(); new Thread(new Runnable() { @Override public void run() { while (true) { try { Socket socket = serverSocket.accept(); ObjectInputStream objectinputstream = new ObjectInputStream(socket.getInputStream()); DataForm dataform = (DataForm) objectinputstream.readObject(); dataform.setTitle(socket.getInetAddress().getHostAddress()); dataform.setVisible(true); socket.close(); } catch (ClassNotFoundException ex) { Logger.getLogger(SerializationApp.class.getName()).log(Level.SEVERE, null, ex); } catch (IOException ex) { Logger.getLogger(SerializationApp.class.getName()).log(Level.SEVERE, null, ex); } } } }).start(); } catch (IOException ex) { Logger.getLogger(SerializationApp.class.getName()).log(Level.SEVERE, null, ex); } } @SuppressWarnings("unchecked") //  private void initComponents() { jPanel1 = new javax.swing.JPanel(); iptextfield = new javax.swing.JTextField(); jPanel2 = new javax.swing.JPanel(); viewButton = new javax.swing.JButton(); sendButton = new javax.swing.JButton(); setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE); jPanel1.setBorder(javax.swing.BorderFactory.createTitledBorder(null, "Receiver IP Address", javax.swing.border.TitledBorder.DEFAULT_JUSTIFICATION, javax.swing.border.TitledBorder.DEFAULT_POSITION, new java.awt.Font("Dialog", 0, 12), new java.awt.Color(0, 0, 204))); // NOI18N jPanel1.setLayout(new java.awt.BorderLayout()); jPanel1.add(iptextfield, java.awt.BorderLayout.CENTER); getContentPane().add(jPanel1, java.awt.BorderLayout.CENTER); viewButton.setText("View Form"); viewButton.addActionListener(new java.awt.event.ActionListener() { public void actionPerformed(java.awt.event.ActionEvent evt) { viewButtonActionPerformed(evt); } }); jPanel2.add(viewButton); sendButton.setText("Send Form"); sendButton.addActionListener(new java.awt.event.ActionListener() { public void actionPerformed(java.awt.event.ActionEvent evt) { sendButtonActionPerformed(evt); } }); jPanel2.add(sendButton); getContentPane().add(jPanel2, java.awt.BorderLayout.SOUTH); pack(); }//  private void viewButtonActionPerformed(java.awt.event.ActionEvent evt) { dataForm.setVisible(!dataForm.isVisible()); } private void sendButtonActionPerformed(java.awt.event.ActionEvent evt) { try { Socket clientsocket = new Socket(iptextfield.getText(), 15000); ObjectOutputStream oout = new ObjectOutputStream(clientsocket.getOutputStream()); oout.writeObject(dataForm); oout.reset(); oout.flush(); clientsocket.close(); } catch (IOException ex) { Logger.getLogger(SerializationApp.class.getName()).log(Level.SEVERE, null, ex); } } public static void main(String args[]) { // /* * If Nimbus (introduced in Java SE 6) is not available, stay with the * default look and feel. For details see * http://download.oracle.com/javase/tutorial/uiswing/lookandfeel/plaf.html */ try { for (javax.swing.UIManager.LookAndFeelInfo info : javax.swing.UIManager.getInstalledLookAndFeels()) { if ("Nimbus".equals(info.getName())) { javax.swing.UIManager.setLookAndFeel(info.getClassName()); break; } } } catch (ClassNotFoundException ex) { java.util.logging.Logger.getLogger(SerializationApp.class.getName()).log(java.util.logging.Level.SEVERE, null, ex); } catch (InstantiationException ex) { java.util.logging.Logger.getLogger(SerializationApp.class.getName()).log(java.util.logging.Level.SEVERE, null, ex); } catch (IllegalAccessException ex) { java.util.logging.Logger.getLogger(SerializationApp.class.getName()).log(java.util.logging.Level.SEVERE, null, ex); } catch (javax.swing.UnsupportedLookAndFeelException ex) { java.util.logging.Logger.getLogger(SerializationApp.class.getName()).log(java.util.logging.Level.SEVERE, null, ex); } // java.awt.EventQueue.invokeLater(new Runnable() { @Override public void run() { new SerializationApp().setVisible(true); } }); } // Variables declaration - do not modify private javax.swing.JTextField iptextfield; private javax.swing.JPanel jPanel1; private javax.swing.JPanel jPanel2; private javax.swing.JButton sendButton; private javax.swing.JButton viewButton; // End of variables declaration } 

序列化的类

 package ds3; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.io.Serializable; public class DataForm extends javax.swing.JFrame implements Serializable { public DataForm() { initComponents(); jButton1.addActionListener(new ClearFormActionListener()); } @SuppressWarnings("unchecked") //  private void initComponents() { buttonGroup1 = new javax.swing.ButtonGroup(); jLabel1 = new javax.swing.JLabel(); jPanel1 = new javax.swing.JPanel(); jLabel2 = new javax.swing.JLabel(); jTextField1 = new javax.swing.JTextField(); jLabel3 = new javax.swing.JLabel(); jTextField2 = new javax.swing.JTextField(); jLabel4 = new javax.swing.JLabel(); jPanel2 = new javax.swing.JPanel(); jRadioButton1 = new javax.swing.JRadioButton(); jRadioButton2 = new javax.swing.JRadioButton(); jLabel5 = new javax.swing.JLabel(); jTextField4 = new javax.swing.JTextField(); jPanel3 = new javax.swing.JPanel(); jButton1 = new javax.swing.JButton(); setTitle("Personal Data Form"); jLabel1.setFont(new java.awt.Font("Tahoma", 3, 11)); // NOI18N jLabel1.setForeground(new java.awt.Color(0, 0, 204)); jLabel1.setHorizontalAlignment(javax.swing.SwingConstants.CENTER); jLabel1.setText("Please fill you data below"); getContentPane().add(jLabel1, java.awt.BorderLayout.NORTH); jPanel1.setLayout(new java.awt.GridLayout(4, 2, 0, 2)); jLabel2.setText("Firstname:"); jPanel1.add(jLabel2); jPanel1.add(jTextField1); jLabel3.setText("Lastname:"); jPanel1.add(jLabel3); jPanel1.add(jTextField2); jLabel4.setText("Gender:"); jPanel1.add(jLabel4); jPanel2.setLayout(new java.awt.GridLayout(1, 2)); buttonGroup1.add(jRadioButton1); jRadioButton1.setText("Male"); jPanel2.add(jRadioButton1); buttonGroup1.add(jRadioButton2); jRadioButton2.setText("Female"); jPanel2.add(jRadioButton2); jPanel1.add(jPanel2); jLabel5.setText("Email:"); jPanel1.add(jLabel5); jPanel1.add(jTextField4); getContentPane().add(jPanel1, java.awt.BorderLayout.CENTER); jButton1.setText("Clear"); jPanel3.add(jButton1); getContentPane().add(jPanel3, java.awt.BorderLayout.SOUTH); pack(); }//  // Variables declaration - do not modify private javax.swing.ButtonGroup buttonGroup1; private javax.swing.JButton jButton1; private javax.swing.JLabel jLabel1; private javax.swing.JLabel jLabel2; private javax.swing.JLabel jLabel3; private javax.swing.JLabel jLabel4; private javax.swing.JLabel jLabel5; private javax.swing.JPanel jPanel1; private javax.swing.JPanel jPanel2; private javax.swing.JPanel jPanel3; private javax.swing.JRadioButton jRadioButton1; private javax.swing.JRadioButton jRadioButton2; private javax.swing.JTextField jTextField1; private javax.swing.JTextField jTextField2; private javax.swing.JTextField jTextField4; // End of variables declaration class ClearFormActionListener implements ActionListener , Serializable { @Override public void actionPerformed(ActionEvent e) { jTextField1.setText(""); jTextField2.setText(""); jTextField4.setText(""); buttonGroup1.clearSelection(); } } } 

例外。

 Exception in thread "AWT-EventQueue-0" java.lang.NullPointerException at javax.swing.plaf.synth.SynthLookAndFeel.paintRegion(SynthLookAndFeel.java:395) at javax.swing.plaf.synth.SynthLookAndFeel.update(SynthLookAndFeel.java:359) at javax.swing.plaf.synth.SynthRootPaneUI.update(SynthRootPaneUI.java:94) at javax.swing.JComponent.paintComponent(JComponent.java:765) at javax.swing.JComponent.paintToOffscreen(JComponent.java:5142) at javax.swing.BufferStrategyPaintManager.paint(BufferStrategyPaintManager.java:302) at javax.swing.RepaintManager.paint(RepaintManager.java:1188) at javax.swing.JComponent.paint(JComponent.java:1015) at java.awt.GraphicsCallback$PaintCallback.run(GraphicsCallback.java:39) at sun.awt.SunGraphicsCallback.runOneComponent(SunGraphicsCallback.java:78) at sun.awt.SunGraphicsCallback.runComponents(SunGraphicsCallback.java:115) at java.awt.Container.paint(Container.java:1784) at javax.swing.RepaintManager.paintDirtyRegions(RepaintManager.java:794) at javax.swing.RepaintManager.paintDirtyRegions(RepaintManager.java:735) at javax.swing.RepaintManager.prePaintDirtyRegions(RepaintManager.java:677) at javax.swing.RepaintManager.access$700(RepaintManager.java:58) at javax.swing.RepaintManager$ProcessingRunnable.run(RepaintManager.java:1593) at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:226) at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:647) at java.awt.EventQueue.access$000(EventQueue.java:96) at java.awt.EventQueue$1.run(EventQueue.java:608) at java.awt.EventQueue$1.run(EventQueue.java:606) at java.security.AccessController.doPrivileged(Native Method) at java.security.AccessControlContext$1.doIntersectionPrivilege(AccessControlContext.java:105) at java.awt.EventQueue.dispatchEvent(EventQueue.java:617) at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:275) at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:200) at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:190) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:185) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:177) at java.awt.EventDispatchThread.run(EventDispatchThread.java:138) 

该文件

UPDATE

更具体。 为什么当我发送表格时，表格通常没有任何例外地显示给收件人，之后我无法看到发件人的表格而没有任何例外。 我的意思是，如果这是一个序列化问题，为什么发件人可以毫无问题地向接收者发送表单，之后View Form按钮会导致exception？

Answer 1

几年前我做了类似的事情，最后我发送了一个JPanel而不是一个框架本身。

我认为在这种情况下的问题是框架有点附加到Graphics ，当然，它不是通过网络序列化并通过网络发送的，因为它实际上接近主机操作系统（在AWT Window级别）

我建议你尝试只发送一个面板（最后只是你试图发送的框架的内容面板）再试一次。 如果您确实需要附加框架属性，可以将它们封装在自定义对象中并通过序列化（例如标题或其他）附加它们。

Answer 2

我想要做的是通过套接字发送JFrame

为什么？ 来自Javad的JFrame ：

警告：此类的序列化对象与以后的Swing版本不兼容。 当前的序列化支持适用于运行相同版本Swing的应用程序之间的短期存储或RMI。 从1.4开始，java.beans包中添加了对所有JavaBeansTM的长期存储的支持。 请参阅XMLEncoder。

不要只是忽略这些警告。 他们是有原因的。

Answer 3

看起来L＆F没有很好地序列化，但无论如何，我的建议是再次序列化GUI的模型并发送其状态。 然后，您可以使用此状态轻松地重新创建视图，并且发送的数据量将减少数量级。

编辑1 ：例如，在您发布的代码中，您将创建一个PersonalData类作为您的模型，它有三个字符串字段用于名字，姓氏和电子邮件，以及一个布尔（或更好的枚举）字段性别。

然后通过套接字发送的信息将是这个“模型”类的对象，而不是整个Swing GUI。 您可以从传递的对象重现GUI填充数据。

Answer 4

JPanel实现

在@Jack建议之后发送JPanel而不是JFrame似乎有效。 以下是实施。

 package ds3; import java.awt.Container; import java.io.IOException; import java.io.ObjectInputStream; import java.io.ObjectOutputStream; import java.net.ServerSocket; import java.net.Socket; import java.net.UnknownHostException; import java.util.logging.Level; import java.util.logging.Logger; import javax.swing.JFrame; import javax.swing.JPanel; import javax.swing.SwingUtilities; import javax.swing.UIManager; public class SerializationApp extends JFrame { private DataPanel dataPanel = new DataPanel(); private JFrame frPanel = new JFrame(); private int serverPort = 15000; private ServerSocket serverSocket; public SerializationApp() { try { serverSocket = new ServerSocket(serverPort); initComponents(); setLocationRelativeTo(null); frPanel.add(dataPanel); frPanel.pack(); frPanel.setLocationRelativeTo(this); frPanel.setDefaultCloseOperation(DISPOSE_ON_CLOSE); new Thread(new Runnable() { @Override public void run() { while (true) { try { Socket socket = serverSocket.accept(); ObjectInputStream objectinputstream = new ObjectInputStream(socket.getInputStream()); JPanel container = (JPanel) objectinputstream.readObject(); JFrame frame = new JFrame(socket.getInetAddress().getHostAddress()); frame.add(container); frame.pack(); frame.setLocationRelativeTo(null); setVibility(frame); socket.close(); } catch (ClassNotFoundException ex) { Logger.getLogger(SerializationApp.class.getName()).log(Level.SEVERE, null, ex); } catch (IOException ex) { Logger.getLogger(SerializationApp.class.getName()).log(Level.SEVERE, null, ex); } } } }).start(); } catch (IOException ex) { Logger.getLogger(SerializationApp.class.getName()).log(Level.SEVERE, null, ex); } } @SuppressWarnings("unchecked") //  private void initComponents() { jPanel1 = new javax.swing.JPanel(); iptextfield = new javax.swing.JTextField(); jPanel2 = new javax.swing.JPanel(); viewButton = new javax.swing.JButton(); sendButton = new javax.swing.JButton(); setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE); jPanel1.setBorder(javax.swing.BorderFactory.createTitledBorder(null, "Receiver IP Address", javax.swing.border.TitledBorder.DEFAULT_JUSTIFICATION, javax.swing.border.TitledBorder.DEFAULT_POSITION, new java.awt.Font("Dialog", 0, 12), new java.awt.Color(0, 0, 204))); // NOI18N jPanel1.setLayout(new java.awt.BorderLayout()); jPanel1.add(iptextfield, java.awt.BorderLayout.CENTER); getContentPane().add(jPanel1, java.awt.BorderLayout.CENTER); viewButton.setText("View Form"); viewButton.addActionListener(new java.awt.event.ActionListener() { public void actionPerformed(java.awt.event.ActionEvent evt) { viewButtonActionPerformed(evt); } }); jPanel2.add(viewButton); sendButton.setText("Send Form"); sendButton.addActionListener(new java.awt.event.ActionListener() { public void actionPerformed(java.awt.event.ActionEvent evt) { sendButtonActionPerformed(evt); } }); jPanel2.add(sendButton); getContentPane().add(jPanel2, java.awt.BorderLayout.SOUTH); pack(); }//  private void setVibility(final JFrame dataform) { SwingUtilities.invokeLater(new Runnable() { @Override public void run() { dataform.setVisible(!dataform.isVisible()); } }); } private void viewButtonActionPerformed(java.awt.event.ActionEvent evt) { setVibility(frPanel); } private void sendButtonActionPerformed(java.awt.event.ActionEvent evt) { try { Socket clientsocket = new Socket(iptextfield.getText(), 15000); ObjectOutputStream oout = new ObjectOutputStream(clientsocket.getOutputStream()); oout.writeObject(dataPanel); oout.reset(); oout.flush(); clientsocket.close(); } catch (UnknownHostException ex) { Logger.getLogger(SerializationApp.class.getName()).log(Level.SEVERE, null, ex); } catch (IOException ex) { Logger.getLogger(SerializationApp.class.getName()).log(Level.SEVERE, null, ex); } } public static void main(String args[]) { try { UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName()); } catch (Exception ignored) { ignored.printStackTrace(); } java.awt.EventQueue.invokeLater(new Runnable() { @Override public void run() { new SerializationApp().setVisible(true); } }); } // Variables declaration - do not modify private javax.swing.JTextField iptextfield; private javax.swing.JPanel jPanel1; private javax.swing.JPanel jPanel2; private javax.swing.JButton sendButton; private javax.swing.JButton viewButton; // End of variables declaration } 

JPanel

在收到的JPanel只有第二个ActionListener可以工作。

 package ds3; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.io.Serializable; public class DataPanel extends javax.swing.JPanel implements Serializable,ActionListener { public DataPanel() { initComponents(); jButton1.addActionListener(this); } @SuppressWarnings("unchecked") //  private void initComponents() { jLabel1 = new javax.swing.JLabel(); jLabel2 = new javax.swing.JLabel(); jLabel3 = new javax.swing.JLabel(); jLabel4 = new javax.swing.JLabel(); jTextField1 = new javax.swing.JTextField(); jTextField2 = new javax.swing.JTextField(); jTextField3 = new javax.swing.JTextField(); jTextField4 = new javax.swing.JTextField(); jButton1 = new javax.swing.JButton(); jLabel1.setText("jLabel1"); add(jLabel1); jLabel2.setText("jLabel1"); add(jLabel2); jLabel3.setText("jLabel1"); add(jLabel3); jLabel4.setText("jLabel1"); add(jLabel4); jTextField1.setText("jTextField1"); add(jTextField1); jTextField2.setText("jTextField1"); add(jTextField2); jTextField3.setText("jTextField1"); add(jTextField3); jTextField4.setText("jTextField1"); add(jTextField4); jButton1.setText("jButton1"); jButton1.addActionListener(new java.awt.event.ActionListener() { public void actionPerformed(java.awt.event.ActionEvent evt) { jButton1ActionPerformed(evt); } }); add(jButton1); }//  private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) { System.out.println("The label"); } // Variables declaration - do not modify private javax.swing.JButton jButton1; private javax.swing.JLabel jLabel1; private javax.swing.JLabel jLabel2; private javax.swing.JLabel jLabel3; private javax.swing.JLabel jLabel4; private javax.swing.JTextField jTextField1; private javax.swing.JTextField jTextField2; private javax.swing.JTextField jTextField3; private javax.swing.JTextField jTextField4; // End of variables declaration @Override public void actionPerformed(ActionEvent e) { System.out.println("Print"); } } 

XMLEncoder实现

对于XMLEncoder如果我对整个类进行编码，则不传输字段上的输入。

主要课程

 import java.awt.FlowLayout; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.beans.XMLEncoder; import java.io.ByteArrayOutputStream; import java.io.OutputStream; import java.net.Socket; import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.UIManager; public final class MainClass extends JFrame { private TheFRameForm x; public MainClass() { x = new TheFRameForm(); initComponents(); TheServer theServer = new TheServer(); theServer.start(); } void initComponents() { setTitle("Look At Me Now"); setLayout(new FlowLayout()); JButton b = new JButton("Show Form"); b.addActionListener(new ActionListener() { @Override public void actionPerformed(ActionEvent e) { x.setVisible(true); } }); add(b); JButton s = new JButton("Send Form"); s.addActionListener(new ActionListener() { @Override public void actionPerformed(ActionEvent e) { sendForm(); } }); add(s); pack(); setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); setLocationRelativeTo(null); setVisible(true); } private void sendForm() { try { Socket clientsocket = new Socket("localhost", 15000); XMLEncoder encoder = new XMLEncoder(clientsocket.getOutputStream()); encoder.writeObject(x); //.getContentPane() encoder.close(); OutputStream memStream = new ByteArrayOutputStream(); XMLEncoder mencoder = new XMLEncoder(memStream); mencoder.writeObject(x);//.getContentPane() mencoder.close(); String xmlString = memStream.toString(); System.out.println(xmlString); } catch (Exception e) { e.printStackTrace(); } } public static void main(String args[]) { try { UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName()); } catch (Exception ignored) { ignored.printStackTrace(); } MainClass theMainclass = new MainClass(); } } 

Server类

 import java.beans.XMLDecoder; import java.io.IOException; import java.net.ServerSocket; import java.net.Socket; import java.util.logging.Level; import java.util.logging.Logger; import javax.swing.JFrame; public class TheServer extends Thread { private static final int serverPort = 15000; private ServerSocket serverSocket; public TheServer() { try { serverSocket = new ServerSocket(serverPort); } catch (IOException ex) { Logger.getLogger(TheServer.class.getName()).log(Level.SEVERE, null, ex); } } @Override public void run() { try { while (true) { Socket socket = serverSocket.accept(); System.out.println("Server is running"); XMLDecoder decoder = new XMLDecoder(socket.getInputStream()); JFrame frame = (JFrame) decoder.readObject(); frame.setVisible(true); socket.close(); } } catch (IOException ex) { Logger.getLogger(TheServer.class.getName()).log(Level.SEVERE, null, ex); } } } 

和JFrame

 public class TheFRameForm extends javax.swing.JFrame { public TheFRameForm() { initComponents(); } @SuppressWarnings("unchecked") //  private void initComponents() { jButton1 = new javax.swing.JButton(); jLabel1 = new javax.swing.JLabel(); jTextField1 = new javax.swing.JTextField(); setDefaultCloseOperation(javax.swing.WindowConstants.DISPOSE_ON_CLOSE); jButton1.setText("jButton1"); jButton1.addActionListener(new java.awt.event.ActionListener() { public void actionPerformed(java.awt.event.ActionEvent evt) { jButton1ActionPerformed(evt); } }); jLabel1.setText("jLabel1"); jTextField1.setText("jTextField1"); javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane()); getContentPane().setLayout(layout); layout.setHorizontalGroup( layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup() .addContainerGap(123, Short.MAX_VALUE) .addComponent(jButton1) .addGap(54, 54, 54) .addComponent(jLabel1) .addGap(102, 102, 102)) .addGroup(layout.createSequentialGroup() .addGap(149, 149, 149) .addComponent(jTextField1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE) .addContainerGap()) ); layout.setVerticalGroup( layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup() .addContainerGap(120, Short.MAX_VALUE) .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE) .addComponent(jLabel1) .addComponent(jButton1)) .addGap(57, 57, 57) .addComponent(jTextField1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE) .addGap(65, 65, 65)) ); pack(); }//  private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) { System.out.println("Print"); } public static void main(String args[]) { try { for (javax.swing.UIManager.LookAndFeelInfo info : javax.swing.UIManager.getInstalledLookAndFeels()) { if ("Nimbus".equals(info.getName())) { javax.swing.UIManager.setLookAndFeel(info.getClassName()); break; } } } catch (ClassNotFoundException ex) { java.util.logging.Logger.getLogger(TheFRameForm.class.getName()).log(java.util.logging.Level.SEVERE, null, ex); } catch (InstantiationException ex) { java.util.logging.Logger.getLogger(TheFRameForm.class.getName()).log(java.util.logging.Level.SEVERE, null, ex); } catch (IllegalAccessException ex) { java.util.logging.Logger.getLogger(TheFRameForm.class.getName()).log(java.util.logging.Level.SEVERE, null, ex); } catch (javax.swing.UnsupportedLookAndFeelException ex) { java.util.logging.Logger.getLogger(TheFRameForm.class.getName()).log(java.util.logging.Level.SEVERE, null, ex); } java.awt.EventQueue.invokeLater(new Runnable() { @Override public void run() { new TheFRameForm().setVisible(true); } }); } // Variables declaration - do not modify private javax.swing.JButton jButton1; private javax.swing.JLabel jLabel1; private javax.swing.JTextField jTextField1; // End of variables declaration }