How to add an Image to Form in java

问题:

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.

回答1:

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(); 

回答2:

Don't know about JDeveloper but in code you have following possibilities:

1. Create an ImageIcon of the image then set that to a jLabel and add jLabel to your frame.
2. Override paintComponents() of your frame to draw image using Graphics in it. {Not sure about this}
3. Override paintComponent() of some panel or any other component to draw image using Graphics in it and then add that component to frame..

回答3:

You can use Labels as Sanjay says.

also using layered pane you can use as background image.

回答4:

You can try doing it this way:

1. ImageIcon image = new ImageIcon(getClass().getResource("imageName.png"));
2. 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