Develop Reference

Problem with setting background image using JLabel

I trying to make mini game and this game have option to choose map. Diffrent chooice, choose diffrent map. Every choice have own map ( background image ). For background image I useing JLabel and method: setIcon().
My problem is that when I set image, all my components get hide. This is picuture: http://prntscr.com/qi5m8a ( You can see that only image can be seen ).
For map choose I use this structure, here is picture: http://prntscr.com/qi5n4c There is Play button with event like this:
private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {
if(mapOneRadioButton.isSelected())
{
this.dispose();
GameWindow game = new GameWindow();
game.setVisible(true);
game.setLocationRelativeTo(null);
backgroundLabelGameWin.setIcon(new javax.swing.ImageIcon(getClass().getResource("/main/earthProject.gif")));
}else if(mapTwoRadioButton.isSelected())
{
}else if(mapTreeRadioButton.isSelected())
{
}else if(mapFourRadioButton.isSelected())
{
}else if(mapFiveRadioButton.isSelected())
{
}
}
I useing JPanel where I add JLabel for background image and I useing JLayeredPanel for rest of components.
My problem/question is, How can I change/set image without breaking order in my frame ?? I mean, I want to change/set image in background so all my components can be seen.
Please help me, I have no idea how to fix this.

For background image I useing JLabel and method: setIcon(). My problem is that when I set image, all my components get hide.
Two options:
add the components to the JLabel. Then the components will paint on top of the image. The restriction of this approach is that the components must fit inside the image, since the image is always painted at its actual size.
do custom painting of the image on a JPanel by overring the paintComponent(...) method of the panel and then invoke the Grapics.drawImage(...) method. Then add your components to the panel. See Background Panel for a class that provides this support. This provides more flexibility as you can scale the image to fill the panel.

It will be better if you change the background of the JPanel instead of using a JLabel for image. You can't directly change the background of a JPanel. But you can refer following link to do it
http://www.java2s.com/Code/Java/Swing-JFC/Panelwithbackgroundimage.htm

How to add a background image to a JFrame with no panels, without using a JLabel?

I want to add a background image to a JFrame which doesn't have any panels. It is a project I'm working on and I have almost completed it. So, I can't add a background using a JLabel because I will have to change a lot of code to do that and also I'm using netbeans. Is there any solution for this?

I want to add a background image to a JFrame which doesn't have any panels.
The content pane of the frame is a JPanel, so yes it does have panels.
I have almost completed it. So, I can't add a background using a JLabel because I will have to change a lot of code
If you want a background image then you will need to change your code to make sure the content pane can display the image. So yes you will need to change your code whether you use a JLabel of a JPanel that paints an image.
Check out Background Panel for code that will allow you to use either approach.
The key is that you need to set the content pane of your frame BEFORE you start adding components to the frame. So the code might look something like:
BackgroundPanel panel = new BackgroundPanel( yourImage );
frame.setContentPane( panel );
frame.add(northPanel, BorderLayout.PAGE_START);
frame.add(centerPanel, BorderLayout.CENTER);
I don't know what the Netbeans generated code looks like so I'll leave it up to you to figure out where to put the code.

How to set the size of my application the same as an image

I uploaded an image of my java application below.
Problem:
I'm currently trying to make a login screen with a premade image as the background. I highlighted the actual size the background image which should also be the size of the application window. You can see that the login field is also out of place because its corresponding to the application window.
This is probably because I'm using
Dimension screen = Toolkit.getDefaultToolkit().getScreenSize();
to set the size of the window.
My question is, how do I make the size of my application border the image?

How to set the size of my application the same as an image
Add your image to a JLabel using an ImageIcon. Then add the label to the frame and pack() the frame.
You can then set the layout manager of the JLabel and add other components to the label.

If your panel is not yet visible:
Image im = ...; // your image
JPanel jp = ...;// panel where you draw your image
jp.setPreferredSize(new Dimension(im.getWidth(null), im.getHeight(null)));

How to add an Image to Form in java

I am designing a form in java using JDeveloper.
I am new to JDeveloper.
In JDeveloper tool I didn't found any option to directly add image to form like .Net.
And I don't know how to add image to form manually.
is there any other way to solve it out.
So please help me to solve it.

As simple as this :
image = ImageIO.read(new File(path));
JLabel picLabel = new JLabel(new ImageIcon(image));
Yayy! Now your image is a swing component ! add it to a frame or panel or anything like you usually do! Probably need a repainting too , like
jpanel.add(picLabel);
jpanel.repaint();

Don't know about JDeveloper but in code you have following possibilities:
Create an ImageIcon of the image then set that to a jLabel and add jLabel to your frame.
Override paintComponents() of your frame to draw image using Graphics in it. {Not sure about this}
Override paintComponent() of some panel or any other component to draw image using Graphics in it and then add that component to frame..

You can use Labels as Sanjay says.
also using layered pane you can use as background image.

You can try doing it this way:
ImageIcon image = new ImageIcon(getClass().getResource("imageName.png"));
JLabel lblImage = new JLabel(image);
line 1 of the code will get the image ensure that the image is in the same folder you are saving your work

Displaying image in a JFrame

I have a JFrame and I want to load a image to it when I click the load image button. Once I click next button I want to change the image. Loading image to a variable is no problem. I load it to Image img. I just want to show it. Which means i want to load it to a JLable or JPanel. How can I do this. Please help me.

Let use ImageIcon & JLabel.setIcon(...)

JLabel supports Icon/ImageIcons. This means that you can create a simple JLabel, pass an ImageIcon to it, and have it display. This should probably cover what you need.
JLabel label = new JLabel(new ImageIcon(image));

Create a custom component and override the paint(Graphics g) method. Use the given Graphics object to paint the image. You could cast to Graphics2D first if you need some more advanced options. Look through the methods defined by Graphics(2D), you'll find what you need pretty soon.
A subclass of JPanel would work well. The best choice really kind of depends on how you managed the contents of the JFrame.