Error adding image to JPanel because variable is not initialise

Question

package testing;

import java.io.*;
import java.util.*;
import java.security.*;
import javax.xml.bind.DatatypeConverter;
import java.lang.*;
import java.awt.*;
import javax.swing.*;
import java.awt.event.*;
import java.awt.image.BufferedImage;
import javax.imageio.ImageIO;


public class Testing extends JPanel 
{        
    public static void main(String[] args) 
    {
        BufferedImage myPicture;           
        try
        {    
             myPicture = ImageIO.read(new File("./src/testing/cal.png"));
        }
        catch (IOException ex) {
            // handle exception...
        }
        JLabel picLabel = new JLabel(new ImageIcon(myPicture));//error is here            
        Testing t = new Testing();
        t.add(picLabel);    
    }
}

I get the following error

 variable myPicture might not have been initialize

I thought i already initialise myPicture with the following line

 myPicture = ImageIO.read(new File("./src/testing/cal.png"));

It seems I am wrong about it , how do i resolve this error so that I can add a image to a JPanel

By the time of deployment, those resources will likely become an [tag:embedded-resource]. That being the case, the resource must be accessed by `URL` instead of `File`. See the [info page](http://stackoverflow.com/tags/embedded-resource/info) for the tag, for a way to form an `URL`. — Andrew Thompson, Apr 21 '14 at 08:24

score 1 · Answer 1 · answered Apr 20 '14 at 08:31

1

BufferedImage myPicture = null;

answered Apr 20 '14 at 08:31

Michał Tabor

2,441
5
23
30

score 1 · Answer 2 · answered Apr 20 '14 at 08:34

1

You initialize it inside the try block, you have to give it some arbitrary value outside the try block, like null, so the compiler knows the value is always initialized, even if the try fails.

answered Apr 20 '14 at 08:34

Harry Blargle

416
2
11
18

Error adding image to JPanel because variable is not initialise

2 Answers2