I'm currently working on a Java Program using JFrames. I'm supposed to create a URLFrame in which I can input a web address and ask the program to fetch it and display it in the Frame. So far I am stuck and would like input on if I'm on the right track and where to go from here:
import javax.swing.*;
public class URLFrame extends JFrame {
private JPanel panel;
private JLabel messagelLabel;
private JTextField enterAddress;
private JButton fetchButton;
private JTextArea displayPage;
private JButton displayScriptCount;
private JButton writePage;
private JTextArea checkStatus;
public URLFrame(){
setTitle("Enter Address");
setSize(WINDOW_WIDTH, WINDOW HEIGHT);
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
buildPanel();
add(panel);
setVisible(true);
}
}
Sounds like you are looking for something along these lines
Pure Java HTML viewer/renderer for use in a Scrollable pane
or
http://www.teamdev.com/jxbrowser
Due to the vagueness of the question, that is what I can think up. Both sources have adequate guidance on setups directly or indirectly.
EDIT: To use a textfield as an 'address-bar', use this:
String url = jTextField_For_Url_Input.getText();
java.net.URL url_to_connect_to = new java.net.URL(url);
//... whatever needed for implementation
http://www.tutorialspoint.com/java/java_url_processing.htm give a good tutorial to help you learn and you can combine this with the suggestions of the HTML related components to view a rendered copy of HTML content.
Another resource using the JEditorPane is here
Read the section from the Swing tutorial on How to Integrate With the Desktop Class.
You can use the examples there to load a URL into the default browser.
The Swing JEditorPane will display basic HTML. Look at the table of contents from the above link and you will find a section on Text Component Features that might help.
Related
import javax.swing.*;
public class SlideShow {
JFrame slide = new JFrame("Slide Show");
public SlideShow(){
slide.setSize(300,400);
slide.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
slide.setVisible(true);
slide.setLocationRelativeTo(null);
JPanel panel = new JPanel();
JLabel label = new JLabel(new ImageIcon("Images/picture1"));
panel.add(label);
slide.add(panel);
}
public static void main(String[] args){
SlideShow slide = new SlideShow();
}
}
I have to create a simple Java GUI that displays some cards. First, I just wanted to test it by displaying one card. For some reason I can't seem to figure out why nothing is being displayed.
You haven't actually used a proper file name "Images/picture1". Should be something like "Images/picture1.png" with the file format
Also image files, generally should be read from the class path, if you plan on having them embedded to the program. To do so, you will first need to put the file in the class path. With most IDE build configurations it's as simple as placing the image in the src. So
ProjectRoot
src
images
picture1.png
Then you would read it like
new ImageIcon(getClass().getResource("/images/picture1.png"));
A better approach would be to use ImageIO.read(). If the file path is incorrect, it will throw an exception, so you know where you're going wrong
Image image = ImageIO.read(getClass().getResource("/images/picture1.png"));
ImageIcon icon = new ImageIcon(image);
You will need to put it in the try/catch block
Also do what codeNinja said about the setVisible() after adding component. Also preferably pack() the frame, instead of setSize()
You need to set the Frame visible after you add all necessary components to it. Move slide.setVisible(true); Down to the bottom of the constructor like this:
...
slide.add(panel);
slide.setVisible(true);
Alternatively you can add slide.revalidate(); at the bottom of your constructor.
I am trying to make a JTabbedPane in Java 7 on OSX that has tabs positioned to the left with their text horizontal (instead of vertical). However, with the code:
import javax.swing.*;
import java.awt.Dimension;
class Probs extends JDialog {
JTabbedPane options = new JTabbedPane();
Probs(JFrame owner) {
//main constructor
super(owner, "User Preferences", true);
//set the tabs to be left aligned
options.setTabPlacement(JTabbedPane.LEFT);
//construct the authorization panel
JPanel authorization = new JPanel();
authorization.add(new JLabel("test"));
options.addTab("test", authorization);
add(options);
setSize(new Dimension(300,300)); //should use pack here
setResizable(false);
setLocationRelativeTo(null);
setVisible(true);
}
public static void main(String[] args) {
JFrame test = new JFrame();
new Probs(test);
test.dispose();
}
}
I get a dialog box which looks like: this image
I would like the tab text to be horizontal (the 'test' title on the tab be oriented horizontally instead of vertically).
I searched around on Google for a while and have only run into occurrences wherein people wanted to achieve vertical text on their tabs, I could not manage to locate any in which people wanted to have horizontal text (what I am trying to achieve).
In particular, I am trying to achieve something which exactly looks like the image mentioned in the first post of this question. It is basically the exact opposite of that question because the person in that tab started with what I am trying to achieve (I believe). Basically, I am trying to determine how to create the image displayed in the first post of that question.
Can someone please tell me how to have left-oriented tabs while preserving horizontal tab titles (as opposed to vertical)?
Thank you for your time and assistance.
Again, since I can't replicate the problem, Try this suggestion:
JPanel authorization = new JPanel();
authorization.add(new JLabel("test"));
options.addTab("", authorization);
JLabel labTab2 = new JLabel("test"); // create a label
options.setTabComponentAt(0, labTab2); // set it to the component
The alignment is determined by your operating system. If you want to change the alignment of the tab text, you have to change the look and feel of your swing application. This worked for me. See here.
The system look and feel at MacOSX didn't support what you want in JTabbedPane. You must create a customized JComponent to do this or to set the look and feel of your application to cross platform (java metal) as stated before by #MonkeySupersonic.
I suggest the readings:
Apple Java Development Guide (section: User Interface Toolkits for Java) - https://developer.apple.com/library/content/documentation/Java/Conceptual/Java14Development/04-JavaUIToolkits/JavaUIToolkits.html
mac User Interface Guidelines - https://developer.apple.com/macos/human-interface-guidelines
Ok so I've been researching this one quiet a bit. I am fairly new to java but thought that this one would be easy. Ive tried just about every way that has been answered on this site and still no luck, and usually when I look here I am able to find a answer that fits what I am looking for. Does anyone know how to change the Java icon in the top corner of the JFrame. I'm pretty positive that its not my file path either because all my images are in the same folder and they all work, this is the only one that I can't seem to get to work.
This is the first part my code for the main menu of my program, everything works except when i try to add the icon image. The code I've entered below does not have anything in it for the JFrame IconImage, I removed it since it didn't work. So if there is someone who knows how to get it working with this code that would be highly appreciated, thank you very much in advanced!
public class MainFrame
{
private MyPanel main;
private MyPanel2 create;
private MyPanel3 update;
private MyPanel4 find;
JFrame frame = new JFrame("Main Menu:");
public void displayGUI()
{
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
JPanel contentPane = new JPanel();
contentPane.setBorder(BorderFactory.createEmptyBorder(0, 0, 0, 0));
contentPane.setLayout(new CardLayout());
main = new MyPanel(contentPane, this);
create = new MyPanel2(contentPane);
update = new MyPanel3(contentPane);
find = new MyPanel4(contentPane);
contentPane.add(main, "Main Menu");
contentPane.add(create, "Create Part");
contentPane.add(update, "Update Part");
contentPane.add(find, "Find Part");
frame.setLocation(200, 200);
frame.setSize(700, 580);
frame.setContentPane(contentPane);
frame.setVisible(true);
}
I have an answer for you. First, make sure that the images are in a folder, not a package. Next, insert this line of code:
Image image = Toolkit.getDefaultToolkit().getImage(getClass().getResource("path/to/image.png"));
ImageIcon icon = new ImageIcon( );
setIconImage(icon.getImage());
This code gets the image from the class path, and returns it as a image icon, and then it sets it. This should add the image icon to the application. If it doesn't, then tell me.
EDIT: After you told me that that didn't work then I decided to take a second crack at it...
First, put your images into a completely separate folder. I usually call this /res. Next, put your image in there. Now, for loading I took a completely different route. I decided to use ImageIO instead of default loading. To load the image, you use this code:
try {
frame.setIconImage(ImageIO.read(new File("res/icon.png")));
}
catch (IOException exc) {
exc.printStackTrace();
}
ImageIO works a lot better for loading images. If this still doesn't work then please tell me.
If you want to export this as a JAR then put a folder the same name as you used in the program in the same directory as the JAR.
For example in a NetBeans project, create a resources folder in the src folder.
Put your images (jpg, ...) in there.
Whether you use ImageIO or Toolkit (including getResource),
you must include a leading / in your path to the image file:
Image image = Toolkit.getDefaultToolkit().getImage(getClass().getResource("/resources/agfa_icon.jpg"));
setIconImage(image);
If this code is inside your JFrame class, the image is added to the frame as an icon in your title bar.
This works pretty fine for me.
Just add this after you've created your JFrame.
try {
Image image = new ImageIcon("/icons/image.jpg").getImage();
frame.setIconImage(image);
}catch(Exception e){
System.out.println("Application icon not found");
}
Paste your image icon (fav.png) in the same package first,
Write following code in constructor of JFrame:
setIconImage(Toolkit.getDefaultToolkit().getImage(getClass().getResource("fav.png")));
Note:- fav.png is the name of icon
this.setIconImage(new ImageIcon(getClass().getResource("/iconsfolder/iconsname.jpg")).getImage());
// sets the Global icon for the system
try this code put after this code:
public void displayGUI()
{
When I run the code it just opens an empty window
I also important whatever is necessary
relevant parts of the code:
public class Game extends JFrame implements ActionListener,KeyListener{
private JLabel background;
....
public Game(){
background=new JLabel(new ImageIcon("/graphics/board.gif"));
...
this.add(background);
this.setSize(800,600);
this.setVisible(true);...
I tried adding the JLabel to a JPanel and then add it to the frame but it still shows nothing in the window
Originally the code was:
JLabel background = new JLabel("/graphics/board.gif");
This would not set the image at the path described, Suggest that the following method is used (this could be simplified to just use a different JLabel constructor but steps shown for clarity)
Create and load the image and then set the icon for the Label As follows
ImageIcon icon = new ImageIcon("/graphics/board.gif");
JLabel background = new JLabel();
background.setIcon(icon);
Link to ImageIcon Java Doc
It is important to set in the layout the order in which the elements are displayed , maybe you have something that is displayed over the label..
I'm guessing you have a directory structure something like:
-c:\java
- source (for source and class files)
- graphic (for your images)
background=new JLabel(new ImageIcon("/graphics/board.gif"));
Don't specify the leading "/" in the file name. That tells Java to look at the root of the C drive, not at the directory where your class is executing from.
Also, don't use:
this.setSize(800,600);
The image does not stretch to fill the size of the frame. Intead you should be using:
this.pack();
so the frame will be the size of the image.
I am trying to create a child frame to exist inside my applet and it should be bound to a JPanel. I found this and that on the internet but nothing that worked. I think something went wrong during the process and the darn thing is hidden or something. Can someone please give me some help on this issue.
My source code follows...
public class EnableFrame {
public void init() {
EnableFrame theframe = new EnableFrame();
theframe.setSize(550, 300);
theframe.setVisible(true);
}
public EnableFrame() {
JPanel containall = new JPanel();
JInternalFrame iframe = new JInternalFrame("New Frame",true,true);
iframe.setBounds(10,10,150,150);
iframe.getContentPane().add(containall);
iframe.show(true);
}
}
Thanks in advance
-Roland
A JInternal is normally associated with a JDesktopPane.
I order for the internal frame to appear on the screen, you must have added the frame to an appropriate container, such as a JDesktopPane
You may find How to Use Internal Frames of some use.
my view only the comment
even is possible there could be caused with some side_effect for mouse and focus event betweens heavyweight (J)Applet and lightweight JInternalFrames that complicated this idea, and heavyweight (J)Applet can jumping toFront()
you'd don't do that and to use JDesktopPane from JFrame rather than for (J)Applet