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Thread: BufferedImage read file issue

  1. #1
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    Default BufferedImage read file issue

    Hello, I am trying to read an image I have in the location of my project,

    So I do this:
    When I read it in the try/catch like: BufferedImage image = ImageIO.read(new file(""));
    and try to access it after the try/catch, it does not know that image exists, so I need to declare it as a global variable for that class first, and then it works.
    Can I get around this or am I just doing something wrong?

    Thank you!

    public class Gui extends JFrame
    {
        private BufferedImage image1;
        public Gui()
        {
            super("MyApp");
            setDefaultCloseOperation(EXIT_ON_CLOSE);
            setLocationRelativeTo(null);
            setVisible(true);
     
            initUI();
     
        }
        public void initUI()
        {
            JPanel mPanel = new JPanel();
            JButton button = new JButton();
     
            try{
       image1 = ImageIO.read(new File("icon.jpg"));
        }
        catch(Exception e)
        {
            System.out.print("Error reading image");
        }
            JLabel label1 = new JLabel(new ImageIcon(image1));
     
            add(label1);
     
        }
    }
    English is not my native language (Typo alert).


  2. #2
    Super Moderator Norm's Avatar
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    Default Re: BufferedImage read file issue

    to declare it as a global variable
    What is the "it"?
    Is this a problem with the scope of a variable?
    Variables declared inside of a {} pair are not known outside of the {}s.

    Does the posted code work
    or does it have the problem?
    If you don't understand my answer, don't ignore it, ask a question.

  3. #3
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    Default Re: BufferedImage read file issue

    it refers to image1(BufferedImage), sorry if I was not clear enough.

    And what I was trying to achieve was to declare the BufferedImage inside the try/catch area, "fill it" at the same time and using it in the same method, outside of the try{} area.

    So if I get this straight, I need to declare image either as a global variable, or somewhere else in my method, and then try/catch, but if i declare image inside try, I cannot use image outside of try{} in the same method?

    Thank you for taking the time to respond, even though I already said it was "solved", appreciate it!
    English is not my native language (Typo alert).

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