Getting JFrame to appear on PC

What do I have to download to get my JFrame to appear on my PC?

The following code, taken from FrameDemo, is a typical example of the code used to create and set up a frame.
//1. Optional: Specify who draws the window decorations.
JFrame.setDefaultLookAndFeelDecorated(true);
//2. Create the frame.
JFrame frame = new JFrame("FrameDemo");
//3. Optional: What happens when the frame closes?
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
//4. Create components and put them in the frame.
//...create emptyLabel...
frame.getContentPane().add(emptyLabel, BorderLayout.CENTER);
//5. Size the frame.
frame.pack();
//6. Show it.
frame.setVisible(true);
Tutorial at:
http://java.sun.com/docs/books/tutorial/uiswing/components/frame.html

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Learning Swing - Can't get JLabel to appear in JFrame

Hi,
I'm a complete beginner to Java. I'm taking a course that's moving way too fast, in my opinion, and we're currently studying Swing. I've likely missed a lot of basic basic Java fundamentals due to the speed of this class, so if I'm making a ridiculous mistake, please let me know.
I'm trying to create the following:
+"Create a GUI interface using the Swing API. Use the JOptionPane class to create a dialog box to ask the+
+user for the University Name. Create a JFrame that has a label with the University name and create your+
+own logo. The window should have the capability of inputting first name , last name, and id for a student+
+in text fields. Once the id is entered open another dialog box with the student information."+
I'm pretty much done, I'm just having issues getting the output from the first JFrame to appear in the second JFrame. When I create a new JFrame, the title I specify appears, but the normal syntax for a JLabel just isn't working and I'm not sure why.
I suspect it has something to do with the general structure of my program rather than my syntax. ...I know I'm missing a lot of fundamentals that I should have developed, thanks to the way the course I'm in is structured.
I'm posting two .java files. The first, called GUIFrame.java is the class that basically does everything, it calls JOptionPane, opens the first and second JFrames, and uses ActionEvent and ActionListener to read text from the text fields. The second .java file is called GUITest.java and all it does is instantiate GUIFrame and sets the JFrame parameters.
If anyone has any suggestions, at all, about how to fix this, or especially how to structure these better... Any suggestion would be greatly appreciated.
CODE:
import javax.swing.JFrame; //provides basic window features
import javax.swing.JOptionPane; //simple GUI input/output
import javax.swing.JLabel; //displays text and images
import javax.swing.Icon; //interface used to manipulate images
import javax.swing.ImageIcon; //loads images
import java.awt.FlowLayout; // specifies how components are arranged
import javax.swing.SwingConstants; //common constants used with Swing
import javax.swing.JTextField;
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;
public class GUIFrame extends JFrame
     private JLabel line1;
     private JLabel line2;
     private JLabel line3;
     private JLabel line4;
     private JTextField textField1;
     private JTextField textField2;
     private JTextField textField3;
     //This method prompts the user in a JOptionPane for the university's name.
     public static String obtainUniversityName()
          //Obtain user input from JOptionPane input dialog for universityName.
          String uName = JOptionPane.showInputDialog(null,"Enter the University's name","University Name",JOptionPane.QUESTION_MESSAGE);
          return uName;
     //This method creates an image icon if possible, or it will print an error and return null
     protected ImageIcon createImageIcon(String path,String description)
          java.net.URL imgURL = getClass().getResource(path);
          if (imgURL != null)
               return new ImageIcon(imgURL, description);
          } else {
               System.err.println("Couldn't find file: " + path);
               return null;
     public GUIFrame()
          //Create a new JFrame for the university info to be placed in
          //The title of the window is also declared here
          super(obtainUniversityName());
          //Sets way things are arranged
          setLayout(new FlowLayout());
          //Grabs logo and aligns it with "Welcome to the University"
          ImageIcon logo = createImageIcon("girl.gif","This is a logo");
          line1 = new JLabel("Welcome to the University", logo, JLabel.CENTER);
          add(line1);
          //"First Name" + Text Field
          line2 = new JLabel("First Name");
          add(line2);
          textField1 = new JTextField(10);
          add(textField1);
          //"Last Name" + Text Field
          line3 = new JLabel("Last Name");
          add(line3);
          textField2 = new JTextField(10);
          add(textField2);
          //"Student ID" + Text Field
          line4 = new JLabel("Student ID");
          add(line4);
          textField3 = new JTextField(10);
          add(textField3);
          //Register event handlers
          TextFieldHandler handler = new TextFieldHandler();
          textField1.addActionListener(handler);
          textField2.addActionListener(handler);
          textField3.addActionListener(handler);
     private class TextFieldHandler implements ActionListener
          public void actionPerformed(ActionEvent event)
               String fname = "";
               String lname = "";
               String stuid = "";
               //When user presses enter in any text field, these set values for input into text field
               if(event.getSource()==textField1)
                    fname = String.format("First Name: %s", event.getActionCommand());
                         else if(event.getSource()==textField2)
                              lname=String.format("Last Name: %s", event.getActionCommand());
                                   else if(event.getSource()==textField3)
                                        stuid=String.format("Student ID: %s", event.getActionCommand());
                                             else
                                                  System.out.println("ERROR! You didn't fill in atleast one of the text boxes...");
               //Creates a new JFrame with title "Student Info"
               JFrame frame2 = new JFrame("Student Info");
               //Sets way things are arranged
               setLayout(new FlowLayout());
               //Temporary - Tests to see that processing of text field events occurs correctly
               System.out.println(fname);
               System.out.println(lname);
               System.out.println(stuid);
               //Puts data into JLabels for display in new JFrame
               JLabel label1=new JLabel(fname);
               add(label1);
               JLabel label2=new JLabel("Can you see this!?");
               add(label2);
               JLabel label3=new JLabel(stuid);
               add(label3);
               //Sets parameters, size, close, visibility, etc, for new JFrame
               frame2.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
               frame2.setSize(275,210);
               frame2.setVisible(true);
          }//end void actionPerformed
     }//end TextFieldHandler
}//end GUIFrame
==================================================================================
import javax.swing.JFrame; //provides basic window features
public class GUITest
     public static void main(String args[])
          //Calls on GUIFrame class. Instantiates.
          GUIFrame guiFrame = new GUIFrame();
          //Set the window to exit when closed
          guiFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
          //Size the window
          guiFrame.setSize(275,210);
          //Center the window on the screen
          guiFrame.setLocationRelativeTo(null);
          //Make the window visible
          guiFrame.setVisible(true);
}

Thanks so much for the quick response. Yeah, I guess I'm a bit oblivious, I guess I missed that it was supposed to be another JOptionPane.
I fixed that and got rid of all the second JFrame stuff. Thank you.
And you're right, now that I can see my output, it's obvious I have serious issues in the actionPerformed() method with the ActionListener. I guess it's just a simple question of how to take what's in all three boxes and output to JOptionPane. Simple logic I guess.
I don't completely understand the ActionListener. I've read my textbook about it and looked at a few online resources, but I don't have a complete understanding.
How then, would I be able to use the ActionListener to get the text from all three text fields?
The way it is now, as you correctly predicted, it waits for enter to be inputted from each text field and whichever text field you hit enter in, despite what's in the other text fields, is the only thing that is outputted to the string in the JOptionPane.
Do you have a suggestion for that?
Thanks again.
CODE:
import javax.swing.JFrame; //provides basic window features
import javax.swing.JOptionPane; //simple GUI input/output
import javax.swing.JLabel; //displays text and images
import javax.swing.Icon; //interface used to manipulate images
import javax.swing.ImageIcon; //loads images
import java.awt.FlowLayout; // specifies how components are arranged
import javax.swing.SwingConstants; //common constants used with Swing
import javax.swing.JTextField;
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;
public class GUIFrame extends JFrame
     private JLabel line1;
     private JLabel line2;
     private JLabel line3;
     private JLabel line4;
     private JTextField textField1;
     private JTextField textField2;
     private JTextField textField3;
     //This method prompts the user in a JOptionPane for the university's name.
     public static String obtainUniversityName()
          //Obtain user input from JOptionPane input dialog for universityName.
          String uName = JOptionPane.showInputDialog(null,"Enter the University's name","University Name",JOptionPane.QUESTION_MESSAGE);
          return uName;
     //This method creates an image icon if possible, or it will print an error and return null
     protected ImageIcon createImageIcon(String path,String description)
          java.net.URL imgURL = getClass().getResource(path);
          if (imgURL != null)
               return new ImageIcon(imgURL, description);
          } else {
               System.err.println("Couldn't find file: " + path);
               return null;
     public GUIFrame()
          //Create a new JFrame for the university info to be placed in
          //The title of the window is also declared here
          super(obtainUniversityName());
          //Sets way things are arranged
          setLayout(new FlowLayout());
          //Grabs logo and aligns it with "Welcome to the University"
          ImageIcon logo = createImageIcon("girl.gif","This is a logo");
          line1 = new JLabel("Welcome to the University", logo, JLabel.CENTER);
          add(line1);
          //"First Name" + Text Field
          line2 = new JLabel("First Name");
          add(line2);
          textField1 = new JTextField(10);
          add(textField1);
          //"Last Name" + Text Field
          line3 = new JLabel("Last Name");
          add(line3);
          textField2 = new JTextField(10);
          add(textField2);
          //"Student ID" + Text Field
          line4 = new JLabel("Student ID");
          add(line4);
          textField3 = new JTextField(10);
          add(textField3);
          //Register event handlers
          TextFieldHandler handler = new TextFieldHandler();
          textField1.addActionListener(handler);
          textField2.addActionListener(handler);
          textField3.addActionListener(handler);
     private class TextFieldHandler implements ActionListener
          public void actionPerformed(ActionEvent event)
               String fname = "";
               String lname = "";
               String stuid = "";
               //When user presses enter in any text field, these set values for input into text field
               if(event.getSource()==textField1)
                    fname = String.format("First Name: %s", event.getActionCommand());
                         else if(event.getSource()==textField2)
                              lname=String.format("Last Name: %s", event.getActionCommand());
                                   else if(event.getSource()==textField3)
                                        stuid=String.format("Student ID: %s", event.getActionCommand());
                                             else
                                                  System.out.println("ERROR! You didn't fill in atleast one of the text boxes...");
               String out = fname + "\n" + lname + "\n" + stuid;
               JOptionPane.showMessageDialog(null,out);
          }//end void actionPerformed
     }//end TextFieldHandler
}//end GUIFrame
import javax.swing.JFrame; //provides basic window features
public class GUITest
     public static void main(String args[])
          //Calls on GUIFrame class. Instantiates.
          GUIFrame guiFrame = new GUIFrame();
          //Set the window to exit when closed
          guiFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
          //Size the window
          guiFrame.setSize(275,210);
          //Center the window on the screen
          guiFrame.setLocationRelativeTo(null);
          //Make the window visible
          guiFrame.setVisible(true);
}Edited by: heathercmiller on Apr 5, 2008 8:56 AM

How do I only get certain questions appear in the quiz results?

I have created a course through Captivate 6, throughout the course there are questions to guage the learners attention. There is also a quiz at the end. However, captivate includes on the questions throughout the course on the quiz results which I do not want to happen.
Can anyone advise how I can only get certain questions appear on the quiz results please?

Branch aware turns off the playbar in 6 (not in 7 any more, at least not for me).
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And please, tell the exact number (3 versions of 6), and also if you have to report to a LMS?
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Some USBs don't appear in Finder. They appear in Disk Utilities so how do I get them to appear in Finder?

Some flash drives/USBs don't appear in Finder. But they appear in Disk Utilities so how do I get them to appear in Finder?

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Drive Partition and Format
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2. After DU loads select your hard drive (this is the entry with the mfgr.'s ID and size) from the left side list. Click on the Partition tab in the DU main window.
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4. Select the volume you just created (this is the sub-entry under the drive entry) from the left side list. Click on the Erase tab in the DU main window.
5. Set the format type to Mac OS Extended (Journaled.) Click on the Security button, check the button for Zero Data and click on OK to return to the Erase window.
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My iPhone is not being detected on my laptop itunes. How do I get it to appear under devices?

My iPhone is not being detected on my laptop itunes. How do I get it to appear under devices?

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I have added 2 new email accounts to my Imac. How do I get them to appear on my macbook pro and my iPhone. The computers are with maverick and the iPhone has the latest iOS 7.0.3. Thanks

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Is the app downloaded on her phone also?

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In final, I want to be able to do this. Have everything in a Finder window alphabetical but with folders appearing at the top, in column view.
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Column view, to the annoyance of many, is strictly alphanumeric and there is no preference in Finder to opt for anything else. There is one kludgy thing you can do: add a space to the beginning of an item name to force it to the top.
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Tom,
Many thanks for replying so soon. Actually, I think I've solved my little conundrum. I was selecting all of my clips in the timeline with the hope of running both functions. I found that when I only selected one clip at a time, that the two options would appear and that I could select them.
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I upgraded to v16 and now when I go to Hotmail/Qutlook email appears in mobile mode. How do I get it to appear in full browser mode?

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Clear the cache and the cookies from sites that cause problems.
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"Remove Cookies" from sites causing problems:
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Start Firefox in <u>[[Safe Mode|Safe Mode]]</u> to check if one of the extensions (Firefox/Tools > Add-ons > Extensions) or if hardware acceleration is causing the problem (switch to the DEFAULT theme: Firefox/Tools > Add-ons > Appearance).
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*https://support.mozilla.org/kb/Safe+Mode
*https://support.mozilla.org/kb/Troubleshooting+extensions+and+themes
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Getting JFrame to appear on PC

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